ProPublica

Journalism in the Public Interest

Treatment Tracker

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
7,536 Internal Medicine
6,402 Family Medicine
3,941 Emergency Medicine
3,698 Anesthesiology
3,450 Physical Therapist
2,645 Chiropractor
2,529 Diagnostic Radiology
2,409 Specialist
2,205 Optometrist
1,949 Physician Assistant
1,899 Psychiatry
1,809 Ophthalmology
1,718 Suppliers Community/Retail Pharmacy
1,587 Obstetrics & Gynecology
1,572 Cardiovascular Disease
1,394 Suppliers Pharmacy [Level II Classification]
1,366 Surgery
1,231 Orthopaedic Surgery
1,069 Gastroenterology
1,068 Not Specified
1,022 Nurse Practitioner, Family
1,001 Neurology
969 Dermatology
896 Clinical Psychologist
805 Nephrology
747 Physician Assistant, Medical
732 Pulmonary Disease
730 Nurse Practitioner
698 Hematology & Oncology
694 Student in an Organized Health Care Education/Training Program
672 Podiatrist
665 Urology
632 Hospitalist
594 Anatomic Pathology & Clinical Pathology
577 General Practice
566 Nurse Anesthetist, Certified Registered
560 Otolaryngology
546 Ambulatory Health Care Facilities Ambulatory Surgical
541 Podiatrist, Foot & Ankle Surgery
478 Endocrinology, Diabetes & Metabolism
459 Infectious Disease
442 Clinical Social Worker
431 Physical Medicine & Rehabilitation
421 Neurological Surgery
414 Rheumatology
381 Psychologist
370 Orthopedic Physical Therapist
366 Radiation Oncology
324 Physician Assistant, Surgical
299 Interventional Cardiology
297 Laboratories Clinical Medical Laboratory
290 Thoracic Surgery (Cardiothoracic Vascular Surgery)
266 Vascular Surgery
265 Plastic Surgery
239 Critical Care Medicine
225 Geriatric Medicine
224 Pain Medicine
219 Vascular & Interventional Radiology
192 Audiologist
185 Allergy & Immunology
173 Body Imaging
171 Occupational Therapist
169 Sports Medicine
168 Transportation Services Land Transport
153 Gynecology
153 Anatomic Pathology
150 Nurse Practitioner, Adult Health
147 Medical Oncology
143 Orthopaedic Surgery of the Spine
141 Emergency Medical Services
133 Pediatrics
132 Hand Surgery
129 Adult Medicine
129 Pain Medicine
125 Clinical Cardiac Electrophysiology
118 Transportation Services Ambulance
117 Nurse Practitioner, Acute Care
117 Plastic and Reconstructive Surgery
110 Audiologist-Hearing Aid Fitter
109 Clinical Neuropsychologist
105 Occupational Therapist, Hand
104 Interventional Pain Medicine
103 Chiropractor, Sports Physician
102 Dietitian, Registered
95 Nurse Practitioner, Psychiatric/Mental Health
90 Surgical Oncology
88 Colon & Rectal Surgery
87 Neuroradiology
80 Allergy
78 Geriatric Medicine
76 Sports Medicine
70 Procedural Dermatology
68 Child & Adolescent Psychiatry
65 Gynecologic Oncology
65 Registered Nurse
65 Legal Medicine
64 MOHS-Micrographic Surgery
64 Nuclear Medicine
63 Podiatrist, Foot Surgery
62 Ambulatory Health Care Facilities Sleep Disorder Diagnostic
60 Mental Health Counselor
57 Optometrist, Corneal and Contact Management
56 Trauma Surgery
56 Otolaryngology/Facial Plastic Surgery
56 Chiropractor, Orthopedic
53 Orthopaedic Trauma
53 Clinical Pathology/Laboratory Medicine
51 Hospitals General Acute Care Hospital
50 Podiatrist, Primary Podiatric Medicine
50 Laboratories Physiological Laboratory
50 Ambulatory Health Care Facilities Radiology
50 Obstetrics
47 Adult Reconstructive Orthopaedic Surgery
46 Nurse Practitioner, Gerontology
42 Dermatopathology
41 Pediatric Anesthesiology
41 Personal Emergency Response Attendant
40 Transplant Surgery
39 Hematology
37 Hospice and Palliative Medicine
37 Surgical Critical Care
36 Pain Medicine
36 Neuromusculoskeletal Medicine, Sports Medicine
36 Neuromusculoskeletal Medicine & OMM
34 Sleep Medicine
34 Chiropractor, Neurology
33 Critical Care Medicine
33 Plastic Surgery within the Head & Neck
32 Facial Plastic Surgery
32 Dentist
32 Social Worker
32 Dentist, Oral and Maxillofacial Surgery
30 Geriatric Psychiatry
30 Maternal & Fetal Medicine
30 Occupational Medicine
29 Nurse Practitioner, Primary Care
29 Chiropractor, Rehabilitation
28 Speech-Language Pathologist
28 Dentist, General Practice
27 Diagnostic Ultrasound
27 Dermatopathology
26 Public Health & General Preventive Medicine
26 Foot and Ankle Surgery
25 Optometrist, Vision Therapy
24 Therapeutic Radiology
24 Ambulatory Health Care Facilities Clinic/Center
24 Ambulatory Health Care Facilities Endoscopy
24 Surgery of the Hand
24 Nurse Practitioner, Women's Health
23 Chiropractor, Nutrition
22 Portable X-Ray Supplier
22 Sports Medicine
22 Pediatric Nephrology
22 Optometrist, Low Vision Rehabilitation
21 Nurse Practitioner, Obstetrics & Gynecology
21 Hospice and Palliative Medicine
20 Nuclear Radiology
20 Pediatric Cardiology
20 Ambulatory Health Care Facilities Magnetic Resonance Imaging (MRI)
20 Adolescent Medicine
20 Ambulatory Health Care Facilities Radiology, Mobile
20 Sleep Medicine
19 Vascular Neurology
19 Female Pelvic Medicine and Reconstructive Surgery
18 Clinical Neurophysiology
18 Geriatrics Physical Therapist
18 Radiography, Radiologic Technologist
17 Addiction Medicine
17 Hepatology
17 Otology & Neurotology
17 Allergy & Immunology
16 Ambulatory Health Care Facilities Primary Care
16 Pediatric Radiology
15 Cytopathology
15 Neurology with Special Qualifications in Child Neurology
14 Cognitive & Behavioral Psychologist
14 Ambulatory Health Care Facilities Ophthalmologic Surgery
14 Sports Physical Therapist
13 Reproductive Endocrinology
13 Advanced Practice Midwife
13 Hematology
13 Clinical Nurse Specialist
12 Ambulatory Health Care Facilities Physical Therapy
12 Nuclear Imaging & Therapy
12 Surgery of the Hand
12 Addiction Medicine
11 Neurology Physical Therapist
11 Pain Medicine
10 Oral & Maxillofacial Surgery
10 Sports Medicine
10 Licensed Practical Nurse
10 Otolaryngic Allergy
10 Dentist, Prosthodontics
9 Counseling Psychologist
9 Chiropractor, Internist
9 Pediatric Urology
9 Preventive Medicine/Occupational Environmental Medicine
9 Behavioral Neurology & Neuropsychiatry
9 Pediatric Orthopaedic Surgery
9 Podiatrist, Sports Medicine
9 Chiropractor, Radiology
8 Transportation Services Air Transport
8 Pharmacist
8 Diagnostic Neuroimaging
8 Neuropathology
8 Hospice and Palliative Medicine
8 Forensic Psychiatry
8 Neuromuscular Medicine
8 Optometrist, Pediatrics
8 Clinical Nurse Specialist, Emergency
8 Rehabilitation Practitioner
8 Pediatric Allergy/Immunology
7 Nurse Practitioner, Pediatrics
7 Psychosomatic Medicine
7 Addiction Medicine
7 Plastic Surgery Within the Head and Neck
7 Ambulatory Health Care Facilities Medical Specialty
7 Spinal Cord Injury Medicine
7 Counselor
7 Medical Genetics, Ph.D. Medical Genetics
7 Hand Physical Therapist
7 Chiropractor, Occupational Health
7 Pediatric Emergency Medicine
7 Contractor
7 Undersea and Hyperbaric Medicine
7 Registered Nurse, Community Health
6 Registered Nurse, General Practice
6 Suppliers Long Term Care Pharmacy
6 Clinical Genetics (M.D.)
6 Adolescent Medicine
6 Technician, Cardiology
6 Addiction Psychiatry
6 Clinical Nurse Specialist, Family Health
6 Dietitian, Nutrition, Renal
6 Vascular Specialist
6 Transportation Services Non-emergency Medical Transport (VAN)
6 Chiropractor, Independent Medical Examiner
5 Specialist/Technologist, Pathology, Histology
5 Blood Banking & Transfusion Medicine
5 Nuclear Cardiology
5 Ambulatory Health Care Facilities Health Service
5 Radiologic Technologist
5 Magnetic Resonance Imaging, Radiologic Technologist
5 Clinical Nurse Specialist, Adult Health
5 Acupuncturist
5 Sonography, Radiologic Technologist
5 Undersea and Hyperbaric Medicine
5 Technician/Technologist, Ophthalmic
5 Sleep Medicine
5 Nurse Practitioner, Community Health
5 Registered Nurse, Psychiatric/Mental Health
5 Hospitals Chronic Disease Hospital
5 Neonatal-Perinatal Medicine
5 Specialist/Technologist, Pathology
5 Female Pelvic Medicine and Reconstructive Surgery
4 Occupational Therapist, Physical Rehabilitation
4 Pediatrics Physical Therapist
4 Sleep Medicine
4 Nuclear Medicine Technology, Radiologic Technologist
4 Military Health Care Provider
4 Dietitian, Nutrition, Metabolic
4 Managed Care Organizations Health Maintenance Organization
4 Registered Nurse, Critical Care Medicine
4 Phlebology
4 Occupational Therapist, Neurorehabilitation
4 Clinical Nurse Specialist, Psychiatric/Mental Health
4 Pediatric Gastroenterology
4 Hospice and Palliative Medicine
4 Clinical & Laboratory Immunology
4 Registered Nurse, Psychiatric/Mental Health, Adult
4 Pediatric Rehabilitation Medicine
3 Rehabilitation Psychologist
3 Case Manager/Care Coordinator
3 Clinical & Laboratory Dermatological Immunology
3 Registered Nurse, Diabetes Educator
3 Nurse Practitioner, Critical Care Medicine
3 Sports Medicine
3 Registered Nurse, Women's Health Care, Ambulatory
3 Hospitals Critical Access
3 Sports Medicine
3 Clinical Child & Adolescent Psychologist
3 Technician, Other
3 Ambulatory Health Care Facilities Urgent Care
3 Assistive Technology Practitioner, Audiologist
3 Marriage & Family Therapist
3 Clinical Nurse Specialist, Acute Care
3 Ambulatory Health Care Facilities Pain
3 Hospitals Special Hospital
3 Prescribing (Medical) Psychologist
3 Suppliers Durable Medical Equipment & Medical Supplies
3 Medical Toxicology
3 Family Psychologist
3 Health Service Psychologist
3 Pediatric Dermatology
3 Specialist, Research Study
3 Assistive Technology Supplier, Audiologist
3 Health Psychologist
2 Registered Nurse, Gerontology
2 Electroneurodiagnostic Specialist/Technologist
2 Suppliers Specialty Pharmacy
2 Pediatric Otolaryngology
2 Community Health Worker
2 Adult Development & Aging Psychologist
2 Ergonomics Physical Therapist
2 Electrophysiology, Clinical Physical Therapist
2 Ambulatory Health Care Facilities Radiology, Mobile Mammography
2 Immunopathology
2 Suppliers Compounding Pharmacy
2 Adolescent Medicine
2 Pediatric Endocrinology
2 Specialist/Technologist Cardiovascular
2 Clinical Pathology
2 In Vivo & In Vitro Nuclear Medicine
2 Sleep Medicine
2 Laboratories Dental Laboratory
2 Ambulatory Health Care Facilities Radiology, Mammography
2 Pediatric Pulmonology
2 Addiction (Substance Use Disorder) Psychologist
2 Physical Therapy Assistant
2 Nurse Practitioner, School
2 Pediatric Hematology-Oncology
2 Clinical Nurse Specialist, Psychiatric/Mental Health, Adult
2 Occupational Therapist, Gerontology
2 Psychoanalyst
2 Agencies Home Health
2 Professional Counselor
2 Ambulatory Health Care Facilities Federally Qualified Health Center (FQHC)
2 Agencies Public Health or Welfare
2 Critical Care Medicine
2 Ambulatory Health Care Facilities Ambulatory Family Planning Facility
2 Sonography
2 Respiratory Therapist, Registered, Pulmonary Diagnostics
1 Specialist/Technologist, Pathology, Immunology
1 Health Educator
1 Molecular Genetic Pathology
1 Chemical Pathology
1 Hospice and Palliative Medicine
1 Residential Treatment Facilities Residential Treatment Facility, Physical Disabilities
1 Clinical Nurse Specialist, Pediatrics
1 Technician/Technologist, Ophthalmic Assistant
1 Suppliers Clinic Pharmacy
1 Vascular Sonography, Radiologic Technologist
1 Ambulatory Health Care Facilities Multi-Specialty
1 Hospitals Psychiatric Hospital
1 Specialist/Technologist
1 Nutrition, Education
1 Bone Densitometry, Radiologic Technologist
1 Emergency Medical Technician, Basic
1 Emergency Medical Technician, Paramedic
1 Hospitals Rehabilitation Hospital
1 Phlebotomy, Technician, Pathology
1 Respiratory Therapist, Certified, Pulmonary Diagnostics
1 Sleep Specialist, PhD
1 Specialist/Technologist, Pathology, Hematology
1 Ambulatory Health Care Facilities Community Health
1 Forensic Pathology
1 Hospital Units Rehabilitation Unit
1 Midwife
1 Ambulatory Health Care Facilities Oncology, Radiation
1 Hospitals Military Hospital
1 Ambulatory Health Care Facilities Public Health, State or Local
1 Managed Care Organizations Point of Service
1 Managed Care Organizations Preferred Provider Organization
1 Registered Nurse, Gastroenterology
1 Neurodevelopmental Disabilities
1 Chiropractor, Thermography
1 Cardiac-Interventional Technologist
1 Sports Medicine
1 Mammography, Radiologic Technologist
1 Athletic Trainer
1 Ambulatory Health Care Facilities Adult Day Care
1 Dentist, Oral and Maxillofacial Pathology
1 Hospitals Rural
1 Cardiovascular Invasive Specialist
1 Registered Nurse, Pain Management
1 Nursing & Custodial Care Facilities Skilled Nursing Facility
1 Clinical Nurse Specialist, Medical-Surgical
1 Podiatrist, Public Medicine
1 Pulmonary Function Technologist
1 Occupational Therapist, Low Vision
1 Neuromuscular Medicine
1 Pediatric Emergency Medicine
1 Transplant Hepatology
1 Mental Retardation & Developmental Disabilities Psychologist
1 Molecular Genetic Pathology
1 Specialist/Technologist, Pathology, Microbiology
1 Registered Nurse, Administrator
1 Optometrist, Sports Vision
1 Ambulatory Health Care Facilities Podiatric
1 Occupational Therapist, Pediatrics
1 Bariatric Medicine
1 Religious Nonmedical Nursing Personnel
1 Registered Nurse, Oncology
1 Nurse Practitioner, Occupational Health
1 Cardiopulmonary Physical Therapist
1 Registered Nurse, Medical-Surgical
1 Pediatric Infectious Diseases
1 Clinical Nurse Specialist, Neuroscience
1 Hospitals Children
1 Optometrist, Occupational Vision
1 Registered Nurse, Home Health
1 Registered Nurse, Ambulatory Care
1 Addiction (Substance Use Disorder) Counselor
1 Anesthesiologist Assistant

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
TRANSPORTATION SERVICES
Ground mileage, per statute mile
Service Code: A0425
9,531,178 $54.2M
EVALUATION AND MANAGEMENT
Established patient office or other outpatient ...
Service Code: 99213
9,381,479 $507M
TEMPORARY CODES
Low osmolar contrast material, 300-399 mg/ml io...
Service Code: Q9967
8,466,269 $1.22M
EVALUATION AND MANAGEMENT
Established patient office or other outpatient,...
Service Code: 99214
7,644,499 $612M
PATHOLOGY AND LABORATORY
Travel allowance one way in connection with med...
Service Code: P9603
7,578,211 $2.38M
NA
Injection, filgrastim (g-csf), 1 microgram
Service Code: J1442
5,508,353 $4.25M
CARDIOVASCULAR SYSTEM
Insertion of needle into vein for collection of...
Service Code: 36415
4,969,596 $14.6M
DRUGS
Injection, darbepoetin alfa, 1 microgram (non-e...
Service Code: J0881
4,684,765 $13.6M
MEDICINE
Therapeutic exercise to develop strength, endur...
Service Code: 97110
4,638,078 $102M
EVALUATION AND MANAGEMENT
Subsequent hospital inpatient care, typically 2...
Service Code: 99232
3,781,918 $224M
MEDICINE
Manual (physical) therapy techniques to 1 or mo...
Service Code: 97140
3,002,174 $57.4M
PATHOLOGY AND LABORATORY
Complete blood cell count (red cells, white blo...
Service Code: 85025
2,982,140 $30.9M
DRUGS
Injection, denosumab, 1 mg
Service Code: J0897
2,725,857 $30.3M
PATHOLOGY AND LABORATORY
Blood test, comprehensive group of blood chemicals
Service Code: 80053
2,696,524 $30.1M
TEMPORARY CODES
Injection, ferumoxytol, for treatment of iron d...
Service Code: Q0138
2,599,949 $1.45M
EVALUATION AND MANAGEMENT
Subsequent hospital inpatient care, typically 3...
Service Code: 99233
2,518,848 $216M
DRUGS
Injection, onabotulinumtoxina, 1 unit
Service Code: J0585
2,113,805 $8.99M
SKIN, HAIR AND NAILS
Destruction of 2-14 skin growths
Service Code: 17003
2,063,236 $16.7M
DRUGS
Injection, epoetin alfa, (for non-esrd use), 10...
Service Code: J0885
1,841,140 $16.4M
PATHOLOGY AND LABORATORY
Blood test, lipids (cholesterol and triglycerides)
Service Code: 80061
1,832,795 $25.3M
PATHOLOGY AND LABORATORY
Pathology examination of tissue using a microsc...
Service Code: 88305
1,792,854 $69.6M
RADIOLOGY
X-ray of chest, 1 view, front
Service Code: 71010
1,665,150 $12.7M
DRUGS
Injection, tocilizumab, 1 mg
Service Code: J3262
1,635,748 $4.6M
PATHOLOGY AND LABORATORY
Blood test, thyroid stimulating hormone (tsh)
Service Code: 84443
1,507,911 $33.9M
DRUGS
Injection, dexamethasone sodium phosphate, 1mg
Service Code: J1100
1,416,964 $145K
PATHOLOGY AND LABORATORY
Hemoglobin a1c level
Service Code: 83036
1,332,814 $17.3M
MEDICINE
Routine electrocardiogram (ekg) using at least ...
Service Code: 93010
1,316,071 $9.11M
PATHOLOGY AND LABORATORY
Chemical analysis using chromatography technique
Service Code: 82542
1,289,470 $31M
EVALUATION AND MANAGEMENT
Established patient office or other outpatient ...
Service Code: 99212
1,209,412 $39M
ADMINISTRATIVE
Injection, gadobutrol, 0.1 ml
Service Code: A9585
1,187,910 $378K
PATHOLOGY AND LABORATORY
Blood test, clotting time
Service Code: 85610
1,143,583 $6.01M
PROCEDURES
Administration of influenza virus vaccine
Service Code: G0008
1,132,434 $26.8M
DRUGS
Injection, heparin sodium, (heparin lock flush)...
Service Code: J1642
1,089,260 $140K
MEDICINE
Therapeutic activities to improve function, wit...
Service Code: 97530
1,060,008 $27M
EVALUATION AND MANAGEMENT
Established patient office or other outpatient,...
Service Code: 99215
989,434 $107M

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 2013 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.