Andrew Hammer, M.D.
NPI 1720281181 · Ophthalmology Physician · Washington, DC
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Hammer, M.D. is a Ophthalmology Physician provider in Washington, DC (NPI 1720281181).
Provider details
- NPI number
- 1720281181
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0101241582 (VA)
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
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
3,002 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) |
|---|---|---|
| Photography of the Retina92250 | 765 | $41 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 579 | $141 |
| Exam of Visual Field With Extended Testing92083 | 256 | $72 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 164 | $568 |
| Established Patient Complete Exam of Visual System92014 | 141 | $141 |
| Imaging of Retina92134 | 137 | $43 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 366 | 125 |
| Timolol Maleate | 122 | 49 |
| Cyclosporinebrand: Restasis | 77 | 36 |
| Erythromycin Basebrand: Erythromycin | 61 | 43 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 59 | 24 |
| Brimonidine Tartrate | 55 | 23 |
| Prednisolone Acetate | 53 | 35 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,212 across 11 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
- 2007-06-06
- Last updated
- 2017-07-20
Frequently asked questions
- What is Andrew Hammer's NPI number?
- Andrew Hammer's National Provider Identifier (NPI) is 1720281181, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Hammer's specialty?
- Andrew Hammer is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Andrew Hammer located?
- Andrew Hammer's practice location on file with NPPES is Walter Reed Army Medical Ctr, Washington, DC 20307-0001.
- What is Andrew Hammer's phone number?
- The practice phone number listed in the NPPES registry for Andrew Hammer is (202) 782-6965.
- Does Andrew Hammer accept Medicare?
- Andrew Hammer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Hammer's NPI active?
- Yes — Andrew Hammer's NPI (1720281181) is active in the NPPES registry as of the last update on 2017-07-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.