Treatment Tracker

The Doctors and Services in Medicare Part B

Treatment Tracker » California

California

Specialties

Providers are grouped by their self-selected primary specialty in the National Plan and Provider Enumeration System (NPPES). This doesn’t necessarily mean the person has special training or certification. Services shown are for Medicare Part B only. (Note: Some specialty names may appear more than once because they have different underlying codes in Medicare.)


Providers Specialty
7,642 Internal Medicine
6,524 Family Medicine
4,038 Emergency Medicine
3,743 Anesthesiology
3,614 Physical Therapist
2,624 Chiropractor
2,534 Diagnostic Radiology
2,275 Specialist
2,237 Optometrist
2,160 Physician Assistant
1,899 Psychiatry
1,790 Ophthalmology
1,688 Suppliers Community/Retail Pharmacy
1,591 Suppliers Pharmacy [Level II Classification]
1,577 Cardiovascular Disease
1,562 Obstetrics & Gynecology
1,404 Surgery
1,265 Nurse Practitioner, Family
1,230 Orthopaedic Surgery
1,098 Gastroenterology
1,019 Neurology
991 Dermatology
957 Clinical Psychologist
889 Hospitalist
846 Nephrology
813 Physician Assistant, Medical
783 Student in an Organized Health Care Education/Training Program
776 Nurse Practitioner
737 Pulmonary Disease
717 Hematology & Oncology
675 Urology
658 Podiatrist
653 Nurse Anesthetist, Certified Registered
604 Anatomic Pathology & Clinical Pathology
566 Otolaryngology
556 General Practice
554 Podiatrist, Foot & Ankle Surgery
554 Ambulatory Health Care Facilities Ambulatory Surgical
481 Endocrinology, Diabetes & Metabolism
479 Infectious Disease
476 Clinical Social Worker
438 Physical Medicine & Rehabilitation
431 Neurological Surgery
421 Rheumatology
409 Psychologist
380 Orthopedic Physical Therapist
378 Radiation Oncology
359 Physician Assistant, Surgical
317 Interventional Cardiology
301 Laboratories Clinical Medical Laboratory
296 Thoracic Surgery (Cardiothoracic Vascular Surgery)
276 Vascular Surgery
273 Critical Care Medicine
266 Plastic Surgery
239 Vascular & Interventional Radiology
231 Pain Medicine
224 Geriatric Medicine
202 Audiologist
193 Occupational Therapist
187 Allergy & Immunology
186 Nurse Practitioner, Adult Health
173 Sports Medicine
165 Transportation Services Land Transport
163 Body Imaging
162 Nurse Practitioner, Acute Care
158 Orthopaedic Surgery of the Spine
156 Medical Oncology
149 Anatomic Pathology
142 Clinical Cardiac Electrophysiology
142 Emergency Medical Services
141 Gynecology
138 Hand Surgery
135 Pediatrics
125 Pain Medicine
124 Clinical Neuropsychologist
122 Plastic and Reconstructive Surgery
121 Adult Medicine
120 Nurse Practitioner, Psychiatric/Mental Health
118 Dietitian, Registered
118 Transportation Services Ambulance
114 Interventional Pain Medicine
109 Audiologist-Hearing Aid Fitter
106 Occupational Therapist, Hand
105 Chiropractor, Sports Physician
93 Surgical Oncology
93 Colon & Rectal Surgery
91 Neuroradiology
85 Geriatric Medicine
78 Allergy
77 Sports Medicine
73 Child & Adolescent Psychiatry
71 Procedural Dermatology
67 Gynecologic Oncology
67 Mental Health Counselor
65 MOHS-Micrographic Surgery
63 Otolaryngology/Facial Plastic Surgery
62 Registered Nurse
61 Optometrist, Corneal and Contact Management
61 Ambulatory Health Care Facilities Sleep Disorder Diagnostic
61 Nuclear Medicine
60 Legal Medicine
59 Podiatrist, Foot Surgery
57 Adult Reconstructive Orthopaedic Surgery
53 Ambulatory Health Care Facilities Radiology
53 Orthopaedic Trauma
52 Clinical Pathology/Laboratory Medicine
51 Laboratories Physiological Laboratory
51 Trauma Surgery
51 Chiropractor, Orthopedic
50 Hospitals General Acute Care Hospital
50 Podiatrist, Primary Podiatric Medicine
49 Hospice and Palliative Medicine
48 Pain Medicine
45 Nurse Practitioner, Gerontology
44 Dentist
44 Dermatopathology
43 Hematology
42 Dentist, General Practice
42 Obstetrics
41 Pediatric Anesthesiology
41 Surgical Critical Care
40 Sleep Medicine
40 Personal Emergency Response Attendant
39 Transplant Surgery
39 Dentist, Oral and Maxillofacial Surgery
38 Speech-Language Pathologist
36 Chiropractor, Neurology
36 Critical Care Medicine
35 Neuromusculoskeletal Medicine & OMM
34 Social Worker
33 Facial Plastic Surgery
32 Nurse Practitioner, Women's Health
32
32 Foot and Ankle Surgery
31 Nurse Practitioner, Primary Care
31 Neuromusculoskeletal Medicine, Sports Medicine
30 Plastic Surgery within the Head & Neck
29 Geriatric Psychiatry
27 Maternal & Fetal Medicine
26 Diagnostic Ultrasound
26 Dermatopathology
25 Optometrist, Vision Therapy
25 Chiropractor, Rehabilitation
25 Public Health & General Preventive Medicine
24 Sleep Medicine
24 Pediatric Nephrology
24 Hospice and Palliative Medicine
24 Female Pelvic Medicine and Reconstructive Surgery
24 Therapeutic Radiology
24 Ambulatory Health Care Facilities Endoscopy
23 Ambulatory Health Care Facilities Clinic/Center
23 Chiropractor, Nutrition
23 Nurse Practitioner, Obstetrics & Gynecology
23 Sports Medicine
22 Optometrist, Low Vision Rehabilitation
22 Surgery of the Hand
22 Portable X-Ray Supplier
21 Occupational Medicine
20 Nuclear Radiology
20 Clinical Neurophysiology
20 Sports Physical Therapist
20 Pediatric Cardiology
19 Ambulatory Health Care Facilities Radiology, Mobile
19 Adolescent Medicine
18 Otology & Neurotology
18 Radiography, Radiologic Technologist
18 Vascular Neurology
18 Ambulatory Health Care Facilities Magnetic Resonance Imaging (MRI)
18 Hepatology
18 Advanced Practice Midwife
17 Ambulatory Health Care Facilities Primary Care
17 Addiction Medicine
17 Allergy & Immunology
17 Geriatrics Physical Therapist
16 Hematology
15 Pediatric Radiology
14 Ambulatory Health Care Facilities Ophthalmologic Surgery
14 Clinical Nurse Specialist
13 Neurology Physical Therapist
13 Neurology with Special Qualifications in Child Neurology
13
13 Licensed Practical Nurse
13 Cognitive & Behavioral Psychologist
13 Cytopathology
12 Pain Medicine
12 Clinical Nurse Specialist, Emergency
12 Surgery of the Hand
12 Dentist, Prosthodontics
12 Counseling Psychologist
11 Sports Medicine
11 Addiction Medicine
11 Ambulatory Health Care Facilities Physical Therapy
10
10 Psychosomatic Medicine
10 Hospice and Palliative Medicine
10 Pediatric Orthopaedic Surgery
10 Nuclear Imaging & Therapy
10 Podiatrist, Sports Medicine
9 Otolaryngic Allergy
9 Reproductive Endocrinology
9 Transportation Services Air Transport
9 Chiropractor, Radiology
9 Rehabilitation Practitioner
9 Pediatric Urology
9 Forensic Psychiatry
9 Oral & Maxillofacial Surgery
9 Behavioral Neurology & Neuropsychiatry
8 Pediatric Emergency Medicine
8 Pharmacist
8 Neuropathology
8 Diagnostic Neuroimaging
8 Clinical Genetics (M.D.)
8 Neuromuscular Medicine
8 Preventive Medicine/Occupational Environmental Medicine
7 Female Pelvic Medicine and Reconstructive Surgery
7 Hand Physical Therapist
7 Chiropractor, Occupational Health
7 Addiction Medicine
7 Pediatrics Physical Therapist
7 Chiropractor, Internist
7 Pediatric Allergy/Immunology
7 Suppliers Long Term Care Pharmacy
7 Addiction Psychiatry
7 Undersea and Hyperbaric Medicine
7 Adolescent Medicine
6 Ambulatory Health Care Facilities Medical Specialty
6 Medical Genetics, Ph.D. Medical Genetics
6 Case Manager/Care Coordinator
6 Counselor
6 Technician, Cardiology
6 Military Health Care Provider
6
6 Acupuncturist
6 Contractor
6 Vascular Specialist
6 Blood Banking & Transfusion Medicine
6 Nurse Practitioner, Pediatrics
6 Sleep Medicine
6 Plastic Surgery Within the Head and Neck
6 Marriage & Family Therapist
6 Clinical Child & Adolescent Psychologist
5 Ambulatory Health Care Facilities Health Service
5 Registered Nurse, Critical Care Medicine
5 Sonography, Radiologic Technologist
5 Managed Care Organizations Health Maintenance Organization
5 Pediatric Gastroenterology
5 Chiropractor, Independent Medical Examiner
5 Radiologic Technologist
5 Specialist/Technologist, Pathology, Histology
5 Immunopathology
5 Spinal Cord Injury Medicine
5 Transportation Services Non-emergency Medical Transport (VAN)
5 Optometrist, Pediatrics
5 Dietitian, Nutrition, Renal
5 Nuclear Cardiology
5 Clinical Nurse Specialist, Adult Health
4 Registered Nurse, General Practice
4 Hospice and Palliative Medicine
4 Technician/Technologist, Ophthalmic
4 Prescribing (Medical) Psychologist
4 Registered Nurse, Diabetes Educator
4 Clinical Nurse Specialist, Acute Care
4 Dentist, Periodontics
4 Hospitals Chronic Disease Hospital
4 Magnetic Resonance Imaging, Radiologic Technologist
4 Registered Nurse, Psychiatric/Mental Health, Adult
4 Registered Nurse, Community Health
4 Specialist/Technologist, Pathology
4 Pediatric Otolaryngology
4 Professional Counselor
4 Ambulatory Health Care Facilities Pain
4 Sports Medicine
4 Clinical & Laboratory Immunology
4 Health Service Psychologist
4 Phlebology
3 Neonatal-Perinatal Medicine
3 Sleep Medicine
3 Agencies Public Health or Welfare
3 Health Psychologist
3 Occupational Therapist, Pediatrics
3 Pediatric Rehabilitation Medicine
3 Bariatric Medicine
3 Technician, Other
3 Electrophysiology, Clinical Physical Therapist
3 Medical Toxicology
3 Suppliers Durable Medical Equipment & Medical Supplies
3 Nurse Practitioner, Community Health
3 Clinical Pathology
3 Assistive Technology Practitioner, Audiologist
3 Clinical Nurse Specialist, Psychiatric/Mental Health
3 Nuclear Medicine Technology, Radiologic Technologist
3 Ambulatory Health Care Facilities Urgent Care
3 Clinical & Laboratory Dermatological Immunology
3 Pediatric Hematology-Oncology
3 Rehabilitation Psychologist
3 Dietitian, Nutrition, Metabolic
3 Sports Medicine
3 Midwife
3 Addiction (Substance Use Disorder) Counselor
3 Undersea and Hyperbaric Medicine
2 Addiction Medicine
2 Pediatric Dermatology
2 Registered Nurse, Gerontology
2 In Vivo & In Vitro Nuclear Medicine
2 Sonography
2 Assistive Technology Supplier, Audiologist
2 Managed Care Organizations Preferred Provider Organization
2 Laboratories Dental Laboratory
2 Registered Nurse, Women's Health Care, Ambulatory
2 Adult Development & Aging Psychologist
2 Family Psychologist
2 Registered Nurse, Oncology
2 Sleep Specialist, PhD
2 Neurodevelopmental Disabilities
2 Ambulatory Health Care Facilities Radiology, Mobile Mammography
2 Registered Nurse, Psychiatric/Mental Health
2 Hospitals Special Hospital
2 Registered Nurse, Neuroscience
2 Psychoanalyst
2 Nurse Practitioner, Critical Care Medicine
2 Ambulatory Health Care Facilities Federally Qualified Health Center (FQHC)
2 Clinical Nurse Specialist, Psychiatric/Mental Health, Adult
2 Registered Nurse, Pain Management
2 Nutrition, Education
2 Ambulatory Health Care Facilities Multi-Specialty
2 Community Health Worker
2 Specialist, Research Study
2 Ambulatory Health Care Facilities Public Health, State or Local
2 Molecular Genetic Pathology
2 Ergonomics Physical Therapist
2 Pediatric Endocrinology
2 Electroneurodiagnostic Specialist/Technologist
2 Suppliers Specialty Pharmacy
2 Pediatric Infectious Diseases
2 Clinical Nurse Specialist, Family Health
2 Registered Nurse, Ambulatory Care
2 Addiction (Substance Use Disorder) Psychologist
2 Specialist/Technologist Cardiovascular
2 Physical Therapy Assistant
2 Critical Care Medicine
2 Ambulatory Health Care Facilities Community Health
2 Suppliers Compounding Pharmacy
2 Hospitals Critical Access
2 Agencies Home Health
2 Nurse Practitioner, Occupational Health
2 Managed Care Organizations Exclusive Provider Organization
1 Clinical Nurse Specialist, Oncology
1 Registered Nurse, Perinatal
1 Ambulatory Health Care Facilities Ambulatory Family Planning Facility
1 Health Educator
1 Pediatric Emergency Medicine
1 Registered Nurse, Medical-Surgical
1 Molecular Genetic Pathology
1 Nutritionist
1 Neurodevelopmental Disabilities
1 Respiratory Therapist, Registered, Pulmonary Diagnostics
1
1 Mental Retardation & Developmental Disabilities Psychologist
1 Optometrist, Occupational Vision
1 Dentist, Oral and Maxillofacial Radiology
1 Managed Care Organizations Point of Service
1 Cardiopulmonary Physical Therapist
1
1 Ambulatory Health Care Facilities Adult Day Care
1 Rehabilitation Counselor
1 Hospice and Palliative Medicine
1 Clinical Nurse Specialist, Neuroscience
1 Pulmonary Function Technologist
1 Cardiac-Interventional Technologist
1 School Psychologist
1 Phlebotomy, Technician, Pathology
1
1 Occupational Therapist, Neurorehabilitation
1 Adolescent Medicine
1 Bone Densitometry, Radiologic Technologist
1 Anesthesiologist Assistant
1 Hospitals Military Hospital
1 Hospitals Psychiatric Hospital
1 Nurse Practitioner, School
1 Agencies Community/Behavioral Health
1 Hospitals Religious Nonmedical Health Care Institution
1 Sleep Medicine
1
1 Technician/Technologist, Ophthalmic Assistant
1 Specialist/Technologist, Pathology, Microbiology
1 Mammography, Radiologic Technologist
1 Transplant Hepatology
1
1 Emergency Medical Technician, Basic
1 Hospice and Palliative Medicine
1 Forensic Pathology
1 Podiatrist, Public Medicine
1 Hospital Units Rehabilitation Unit
1 Cardiovascular Invasive Specialist
1 Nursing & Custodial Care Facilities Skilled Nursing Facility
1 Independent Medical Examiner
1 Specialist/Technologist
1 Clinical Nurse Specialist, Medical-Surgical
1 Ambulatory Health Care Facilities Radiology, Mammography
1 Emergency Medical Technician, Paramedic
1 Optometrist, Sports Vision
1 Vascular Sonography, Radiologic Technologist
1 Aerospace Medicine
1 Hospitals Rural
1 Pediatric Pulmonology
1 Sports Medicine
1 Clinical Nurse Specialist, Pediatrics
1 Registered Nurse, Gastroenterology
1 Occupational Therapist, Physical Rehabilitation
1 Respiratory Therapist, Certified, Pulmonary Diagnostics
1 Specialist/Technologist, Pathology, Immunology
1 Ambulatory Health Care Facilities Oncology, Radiation
1 Suppliers Clinic Pharmacy
1 Specialist/Technologist, Pathology, Hematology
1 Registered Nurse, Home Health
1 Dentist, Endodontics
1 Clinical Nurse Specialist, Psychiatric/Mental Health, Chronically Ill
1 Occupational Therapist, Gerontology
1 Registered Nurse, Emergency
1 Religious Nonmedical Nursing Personnel
1 Chore Provider

Top Services (or Units)

These are the top 35 services (or units, i.e. drug infusions, ambulance miles) performed by providers in this state. Some services can be billed multiple times per patient on the same day and are not necessarily a count of visits.



Service Times Performed Medicare Payments
EVALUATION AND MANAGEMENT
Established patient office or other outpatient ...
Service Code: 99213
9,200,303 $497M
TRANSPORTATION SERVICES
Ground mileage, per statute mile
Service Code: A0425
8,857,762 $51.6M
TEMPORARY CODES
Low osmolar contrast material, 300-399 mg/ml io...
Service Code: Q9967
8,265,846 $984K
EVALUATION AND MANAGEMENT
Established patient office or other outpatient,...
Service Code: 99214
7,997,748 $645M
Injection, testosterone cypionate, 1mg
Service Code: J1071
7,399,399 $148K
MEDICINE
Therapeutic exercise to develop strength, endur...
Service Code: 97110
4,912,062 $109M
CARDIOVASCULAR SYSTEM
Insertion of needle into vein for collection of...
Service Code: 36415
4,499,412 $13.2M
Injection, filgrastim (g-csf), 1 microgram
Service Code: J1442
4,301,612 $3.31M
DRUGS
Injection, darbepoetin alfa, 1 microgram (non-e...
Service Code: J0881
4,256,074 $13.3M
PATHOLOGY AND LABORATORY
Travel allowance one way in connection with med...
Service Code: P9603
3,919,566 $4M
Injection, ferric carboxymaltose, 1mg
Service Code: J1439
3,772,394 $3.12M
EVALUATION AND MANAGEMENT
Subsequent hospital inpatient care, typically 2...
Service Code: 99232
3,770,031 $225M
MEDICINE
Manual (physical) therapy techniques to 1 or mo...
Service Code: 97140
3,226,454 $61.6M
DRUGS
Injection, denosumab, 1 mg
Service Code: J0897
3,017,538 $34.8M
PATHOLOGY AND LABORATORY
Complete blood cell count (red cells, white blo...
Service Code: 85025
2,918,634 $30.2M
PATHOLOGY AND LABORATORY
Blood test, comprehensive group of blood chemicals
Service Code: 80053
2,694,018 $29.7M
EVALUATION AND MANAGEMENT
Subsequent hospital inpatient care, typically 3...
Service Code: 99233
2,651,897 $229M
DRUGS
Injection, onabotulinumtoxina, 1 unit
Service Code: J0585
2,403,653 $10.5M
SKIN, HAIR AND NAILS
Destruction of 2-14 skin growths
Service Code: 17003
2,080,512 $9.55M
PATHOLOGY AND LABORATORY
Blood test, lipids (cholesterol and triglycerides)
Service Code: 80061
1,778,441 $25M
PATHOLOGY AND LABORATORY
Pathology examination of tissue using a microsc...
Service Code: 88305
1,776,852 $72.2M
RADIOLOGY
X-ray of chest, 1 view, front
Service Code: 71010
1,610,371 $12.2M
DRUGS
Injection, epoetin alfa, (for non-esrd use), 10...
Service Code: J0885
1,576,041 $14.8M
PATHOLOGY AND LABORATORY
Blood test, thyroid stimulating hormone (tsh)
Service Code: 84443
1,482,667 $33.2M
ADMINISTRATIVE
Injection, gadobutrol, 0.1 ml
Service Code: A9585
1,470,960 $455K
Opiate(s), drug and metabolites, each procedure
Service Code: G6056
1,438,680 $37.3M
TEMPORARY CODES
Injection, ferumoxytol, for treatment of iron d...
Service Code: Q0138
1,409,793 $871K
DRUGS
Injection, dexamethasone sodium phosphate, 1mg
Service Code: J1100
1,379,200 $151K
PATHOLOGY AND LABORATORY
Hemoglobin a1c level
Service Code: 83036
1,354,393 $17.5M
MEDICINE
Routine electrocardiogram (ekg) using at least ...
Service Code: 93010
1,345,463 $9.31M
DRUGS
Injection, tocilizumab, 1 mg
Service Code: J3262
1,325,173 $3.93M
Injection, certolizumab pegol, 1 mg (code may b...
Service Code: J0717
1,214,906 $5.96M
MEDICINE
Therapeutic activities to improve function, wit...
Service Code: 97530
1,188,841 $30.2M
EVALUATION AND MANAGEMENT
Established patient office or other outpatient ...
Service Code: 99212
1,103,333 $36M
PATHOLOGY AND LABORATORY
Chemical analysis using chromatography technique
Service Code: 82542
1,099,777 $26.4M

Sources: Centers for Medicare and Medicaid Services, National Plan and Provider Enumeration System, American Medical Association

Services that begin with a letter come from CMS. All other codes and descriptions of the medical procedures are from the Current Procedural Terminology (CPT®) code set, copyright 2015 American Medical Association. All rights reserved. Where practical, AMA’s consumer friendly translation of the CPT descriptor was used. ProPublica has received permission from the AMA to use these codes on this site.

Read our methodology.