Jonathan Chou, MD
NPI 1043621055 · Ophthalmology Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Chou, MD is a Ophthalmology Physician provider in Palo Alto, CA (NPI 1043621055).
Provider details
- NPI number
- 1043621055
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 262825 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
12 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 566 | 233 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 244 | 84 |
| Prednisolone Acetate | 157 | 110 |
| Timolol Maleate | 131 | 52 |
| Brimonidine Tartrate | 128 | 47 |
| Ketorolac Tromethamine | 76 | 46 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 31 | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$206 across 4 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
Additional practice locations (1)
- 243 Charles StBoston, MA 02114-3002Phone: (617) 523-7900
Registry dates
- Enumerated
- 2014-05-13
- Last updated
- 2023-09-20
- Certified
- 2022-04-04
Frequently asked questions
- What is Jonathan Chou's NPI number?
- Jonathan Chou's National Provider Identifier (NPI) is 1043621055, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Chou's specialty?
- Jonathan Chou is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Chou located?
- Jonathan Chou's practice location on file with NPPES is 2452 Watson Ct, Palo Alto, CA 94303.
- What is Jonathan Chou's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Chou is (650) 723-4000.
- Does Jonathan Chou accept Medicare?
- Jonathan Chou is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Chou's NPI active?
- Yes — Jonathan Chou's NPI (1043621055) is active in the NPPES registry as of the last update on 2023-09-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.