Sarah Chang, MD
NPI 1790280402 · Ophthalmology Physician · Greenbelt, MD
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Chang, MD is a Ophthalmology Physician provider in Greenbelt, MD (NPI 1790280402).
Provider details
- NPI number
- 1790280402
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- D0092875 (MD)
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
8 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
1,178 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 Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 271 | $100 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 180 | $142 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 156 | $50 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 100 | $180 |
| Exam of Visual Field With Extended Testing92083 | 99 | $72 |
| Imaging of Optic Nerve92133 | 96 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 187 | 72 |
| Prednisolone Acetate | 140 | 86 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 135 | 44 |
| Ofloxacin | 84 | 67 |
| Ketorolac Tromethamine | 77 | 64 |
| Brimonidine Tartrate | 64 | 29 |
| Timolol Maleate | 50 | 16 |
| Netarsudil Mesylat/Latanoprost |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$850 across 37 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
- 2018-03-26
- Last updated
- 2022-05-16
- Certified
- 2022-05-16
Frequently asked questions
- What is Sarah Chang's NPI number?
- Sarah Chang's National Provider Identifier (NPI) is 1790280402, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Chang's specialty?
- Sarah Chang is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Sarah Chang located?
- Sarah Chang's practice location on file with NPPES is 7500 Greenway Center Dr Ste 300, Greenbelt, MD 20770-3551.
- What is Sarah Chang's phone number?
- The practice phone number listed in the NPPES registry for Sarah Chang is (301) 277-4844.
- Does Sarah Chang accept Medicare?
- Sarah Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Chang's NPI active?
- Yes — Sarah Chang's NPI (1790280402) is active in the NPPES registry as of the last update on 2022-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.