Stanley Chang, M.D.
NPI 1639110307 · Ophthalmology Physician · New York, NY
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stanley Chang, M.D. is a Ophthalmology Physician provider in New York, NY (NPI 1639110307).
Provider details
- NPI number
- 1639110307
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 124558 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
2,006 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) |
|---|---|---|
| Imaging of Retina92134 | 897 | $47 |
| Established Patient Problem Focused Exam of Visual System92012 | 706 | $103 |
| Injection of Drug Into Eye67028 | 222 | $136 |
| Established Patient Complete Exam of Visual System92014 | 109 | $146 |
| Photography of the Retina92250 | 47 | $44 |
| Imaging of Optic Nerve92133 | 13 | $43 |
| Removal of Recurring Cataract in Lens Capsule Using a Laser66821 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 103 | 32 |
| Timolol Maleate | 88 | 24 |
| Prednisolone Acetate | 62 | 22 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 56 | 18 |
| Erythromycin Basebrand: Erythromycin | 29 | 14 |
| Brimonidine Tartrate/Timololbrand: Combigan | 26 | — |
| Bromfenac Sodiumbrand: Prolensa | 21 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$30 across 1 record (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
- 2006-06-10
- Last updated
- 2013-08-20
Frequently asked questions
- What is Stanley Chang's NPI number?
- Stanley Chang's National Provider Identifier (NPI) is 1639110307, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stanley Chang's specialty?
- Stanley Chang is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Stanley Chang located?
- Stanley Chang's practice location on file with NPPES is 635 W 165th St, New York, NY 10032-3724.
- What is Stanley Chang's phone number?
- The practice phone number listed in the NPPES registry for Stanley Chang is (212) 305-3015.
- Does Stanley Chang accept Medicare?
- Stanley Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stanley Chang's NPI active?
- Yes — Stanley Chang's NPI (1639110307) is active in the NPPES registry as of the last update on 2013-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.