Brian Chen, M.D.
NPI 1952631632 · Ophthalmology Physician · San Gabriel, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Chen, M.D. is a Ophthalmology Physician provider in San Gabriel, CA (NPI 1952631632).
Provider details
- NPI number
- 1952631632
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MT195228 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,950 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 546 | $139 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 358 | $139 |
| Imaging of Optic Nerve92133 | 307 | $40 |
| Exam of the Internal Drainage System of Eye92020 | 268 | $30 |
| Ultrasound Scan of Cornea to Determine Thickness76514 | 253 | $11 |
| Exam of Visual Field With Extended Testing92083 | 250 | $72 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 2,642 | 512 |
| Brimonidine Tartrate | 1,043 | 287 |
| Prednisolone Acetate | 1,032 | 727 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 1,010 | 271 |
| Ofloxacin | 1,003 | 692 |
| Ketorolac Tromethamine | 998 | 684 |
| Timolol Maleate | 373 | 100 |
| Bimatoprostbrand: Lumigan |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$453 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-01-02
- Last updated
- 2020-08-07
- Certified
- 2020-08-07
Frequently asked questions
- What is Brian Chen's NPI number?
- Brian Chen's National Provider Identifier (NPI) is 1952631632, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Chen's specialty?
- Brian Chen is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Chen located?
- Brian Chen's practice location on file with NPPES is 207 S Santa Anita St Ste P25, San Gabriel, CA 91776-1145.
- What is Brian Chen's phone number?
- The practice phone number listed in the NPPES registry for Brian Chen is (626) 284-8448.
- Does Brian Chen accept Medicare?
- Brian Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Chen's NPI active?
- Yes — Brian Chen's NPI (1952631632) is active in the NPPES registry as of the last update on 2020-08-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.