Treatment Tracker
The Doctors and Services in Medicare Part B
This database was last updated in December 2017. It should only be used as a historical snapshot. More recent data is available via the Centers for Medicare and Medicaid Services’ lookup tool.
This Provider: At A Glance
We aren’t showing our typical comparisons because this provider had an address in a different state in 2015.
How This Provider’s Patients Compare
Doctors often say their patients are sicker or more complex than those of their peers. The measure displayed below, used by the Centers for Medicare and Medicaid Services, takes into account patients’ characteristics to estimate whether they are expected to have above-average Medicare spending. It considers patients’ age, sex, diagnoses from the past year and other factors. This provider’s score below takes into account all of his Part B patients.
This Provider's Services
This provider performed 27 different services in 2015
(17 were redacted as they were performed on less than 11 patients)
Show Only:
CATEGORYDescription of Service |
Times Performed (or Units) | This Service's Rank | Patients | Unique Visits Per Patient |
Billed to Medicare | Payments from Medicare |
|---|---|---|---|---|---|---|
MEDICINEExamination of eye by ophthalmoscope with retinal drawing + Examination of eye by ophthalmoscope with retinal drawing × Service Code: 92226Performed in an office |
202 times performed, 25% of his services |
1st
most performed service for this provider 5 or fewer providers in this specialty in CA perform this service |
67 patients got this service, 78% of his patients |
1.8 average number of visits a patient made for this service |
$16,895.28an average of $83.64 per time performed |
$3,827.90 an average of $18.95 per time performed |
MEDICINEService Code: 92250Performed in an office |
143 times performed, 18% of his services |
2nd
most performed service for this provider 5 or fewer providers in this specialty in CA perform this service |
74 patients got this service, 86% of his patients |
1.9 average number of visits a patient made for this service |
$27,457.43an average of $192.01 per time performed |
$7,177.17 an average of $50.19 per time performed |
MEDICINEExamination of retinal blood vessels by ophthalmoscope Service Code: 92235Performed in an office |
113 times performed, 14% of his services |
3rd
most performed service for this provider 5 or fewer providers in this specialty in CA perform this service |
59 patients got this service, 69% of his patients |
1.9 average number of visits a patient made for this service |
$65,570.51an average of $580.27 per time performed |
$14,936.34 an average of $132.18 per time performed |
EVALUATION AND MANAGEMENTEstablished patient office or other outpatient, visit typ... + Established patient office or other outpatient, visit typically 25 minutes × Service Code: 99214Performed in an office |
85 times performed, 11% of his services |
4th
most performed service for this provider 5 or fewer providers in this specialty in CA perform this service |
49 patients got this service, 57% of his patients |
1.7 average number of visits a patient made for this service |
$22,226.65an average of $261.49 per time performed |
$6,310.40 an average of $74.24 per time performed |
EVALUATION AND MANAGEMENTEstablished patient office or other outpatient, visit typ... + Established patient office or other outpatient, visit typically 40 minutes × Service Code: 99215Performed in an office |
46 times performed, 6% of his services |
5th
most performed service for this provider 5 or fewer providers in this specialty in CA perform this service |
31 patients got this service, 36% of his patients |
1.5 average number of visits a patient made for this service |
$16,587.14an average of $360.59 per time performed |
$4,293.64 an average of $93.34 per time performed |
MEDICINEPhotography of content of eyes Service Code: 92285Performed in an office |
39 times performed, 5% of his services |
6th
most performed service for this provider 5 or fewer providers in this specialty in CA perform this service |
20 patients got this service, 23% of his patients |
2 average number of visits a patient made for this service |
$4,446.39an average of $114.01 per time performed |
$476.19 an average of $12.21 per time performed |
MEDICINEEye and medical examination for diagnosis and treatment, ... + Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits × Service Code: 92014Performed in an office |
38 times performed, 5% of his services |
7th
most performed service for this provider 5 or fewer providers in this specialty in CA perform this service |
31 patients got this service, 36% of his patients |
1.2 average number of visits a patient made for this service |
$11,496.90an average of $302.55 per time performed |
$2,740.56 an average of $72.12 per time performed |
MEDICINEService Code: 92134Performed in an office |
29 times performed, 4% of his services |
8th
most performed service for this provider 5 or fewer providers in this specialty in CA perform this service |
17 patients got this service, 20% of his patients |
1.7 average number of visits a patient made for this service |
$3,119.24an average of $107.56 per time performed |
$878.70 an average of $30.30 per time performed |
MEDICINEExamination of eye by ophthalmoscope with retinal drawing + Examination of eye by ophthalmoscope with retinal drawing × Service Code: 92225Performed in an office |
25 times performed, 3% of his services |
9th
most performed service for this provider 5 or fewer providers in this specialty in CA perform this service |
14 patients got this service, 16% of his patients |
1 average number of visits a patient made for this service |
$2,028.00an average of $81.12 per time performed |
$505.00 an average of $20.20 per time performed |
MEDICINEMeasurement of field of vision during daylight conditions + Measurement of field of vision during daylight conditions × Service Code: 92083Performed in an office |
16 times performed, 2% of his services |
10th
most performed service for this provider 5 or fewer providers in this specialty in CA perform this service |
11 patients got this service, 13% of his patients |
1.5 average number of visits a patient made for this service |
$3,335.36an average of $208.46 per time performed |
$697.60 an average of $43.60 per time performed |
Office Visits
Medicare reimburses office visits using a five-point scale, with five being the most intensive and costly. The chart below shows what percentage of this provider’s office visits were reimbursed at each level. A higher than average proportion of costly visits is not necessarily an indication of a problem, but it may be worth asking about.
This provider charged Medicare for a higher percentage of 5’s than his peers.
Quan Dong Nguyen
Average for Ophthalmology Providers in California
Notes: Medicare redacted this data for any services provided to fewer than 11 patients. The contact information listed above is the most current we have for this provider. The services listed on this page may have been delivered at a previous address or as part of a different practice.
Incorrect Info? If you are a provider and you believe your address is incorrect, check the listing you created on the National Provider Identifier registry. If you change your listing, send a note to checkup@propublica.org and we will update your information. If you have other questions about this data, send a note to checkup@propublica.org. Here's a link to Medicare's data on this provider.
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.