Andrew Hammer, M.D.
Ophthalmology Physician · Washington, DC
Andrew Hammer, M.D. is an ophthalmology physician with a practice address in Washington, District of Columbia, and NPI 1720281181, issued on Jun 6, 2007. Check the license on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Andrew Hammer
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 0101241582 VA
Self-reported in NPPES; status is on the state search - Practice location
- Walter Reed Army Medical Ctr, Washington, DC 20307
- Phone
- (202) 782-6965
- Enumerated
- Jun 6, 2007
- Record last updated
- Jul 20, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180122002199); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 89 in District of Columbia → Look up another NPI →
Also registered at Walter Reed Army Medical Ctr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jeffrey Becker, M.D.Pediatric Cardiology Physician1902900418
- Kimberly Benson, M.S.P.T.Physical Therapist1891862207
- David Boyd, M.S.W.Clinical Social Worker1447561220
- Devvon Bradley, M.S.WClinical Social Worker1932423241
Verify Andrew Hammer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average ophthalmology physician in 2024
1,211 Medicare Part D claims for 407 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.
Most prescribed
- Latanoprost366 claims
- Timolol Maleate122 claims
- Restasis77 claims
- Erythromycin61 claims
- Dorzolamide-Timolol59 claims
- Brimonidine Tartrate55 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 98.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,211.60
11 payments; by number, the most common kind was food and beverage; the largest payer was RxSight Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Visionary Ophthalmology LLCRockville, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew Hammer among 89 ophthalmology physician records in District of Columbia
Andrew Hammer, M.D. is one of 89 ophthalmology physician records with a practice address in District of Columbia. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 56% of them.
- NPI issued2007 · 56% of these records are older, 36% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2005 · median 1998 among the 51 with a school on file
- Record last updated2017 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in District of Columbia
There are 89 ophthalmology physician records in District of Columbia.
All 89 in District of Columbia → Every provider in Washington → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Richard Birdsong, M.D.Washington, DC 203071699871301
- Bennett Oberg, D.O.Washington, DC 203071336301902
- William Rimm, MDWashington, DC 203071952407587
- Michele Maiberger, M.D.Washington, DC 204221538249297
- Heidi Bowie, ODWashington, DC 200601952355513
- Katrina Chin Loy, M.D.Washington, DC 200601871851188
- Leslie Jones, MDWashington, DC 200601790894772
- Jiali MaWashington, DC 200601245819952
Common questions
What is Andrew Hammer, M.D.'s NPI number?
Andrew Hammer, M.D.'s National Provider Identifier (NPI) is 1720281181, issued on Jun 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Hammer, M.D. located?
The NPPES record lists a practice address at Walter Reed Army Medical Ctr, Washington, DC, 20307. Phone: (202) 782-6965. Providers update this record themselves, so call before visiting.
How can I verify Andrew Hammer, M.D.'s license?
Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Andrew Hammer, M.D. prescribe under Medicare Part D?
In 2024, Andrew Hammer, M.D. had 1,211 Medicare Part D claims for 407 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Andrew Hammer, M.D.'s MIPS final score?
The 2023 MIPS final score is 98.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.