Gregory Gertner, MD
NPI 1891857496 · Ophthalmology Physician · Washington, DC
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Gertner, MD is a Ophthalmology Physician provider in Washington, DC (NPI 1891857496).
Provider details
- NPI number
- 1891857496
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101238374 (VA)
Specialties & taxonomies
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
19 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
80 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 | 42 | $138 |
| New Patient Complete Exam of Visual System92004 | 22 | $153 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 16 | $53 |
Typical Medicare-allowed amounts for these services range $53–$153 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
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 | 959 | 337 |
| Prednisolone Acetate | 330 | 227 |
| Ketorolac Tromethamine | 267 | 204 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 241 | 83 |
| Moxifloxacin Hclbrand: Moxifloxacin | 212 | 194 |
| Brimonidine Tartrate | 201 | 81 |
| Timolol Maleate | 157 | 59 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$123 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
- 2006-12-14
- Last updated
- 2021-06-09
- Certified
- 2021-06-09
Frequently asked questions
- What is Gregory Gertner's NPI number?
- Gregory Gertner's National Provider Identifier (NPI) is 1891857496, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Gertner's specialty?
- Gregory Gertner is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Gertner located?
- Gregory Gertner's practice location on file with NPPES is 700 2nd St Ne, Washington, DC 20002-8100.
- What is Gregory Gertner's phone number?
- The practice phone number listed in the NPPES registry for Gregory Gertner is (202) 346-3000.
- Does Gregory Gertner accept Medicare?
- Gregory Gertner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Gertner's NPI active?
- Yes — Gregory Gertner's NPI (1891857496) is active in the NPPES registry as of the last update on 2021-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.