NPPES file of Aug 9, 2026

Zachary M. Eller, M.D., M.S.

Ophthalmology Physician · Greenbelt, MD

Zachary M. Eller, M.D., M.S. is an ophthalmology physician with a practice address in Greenbelt, Maryland, and NPI 1841935582, issued on Apr 27, 2022. Check the license (Maryland D0107588, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841935582
Name
Zachary M. Eller
Credential
M.D., M.S.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
D0107588 MD
Self-reported in NPPES; status is on the state search
Practice location
7500 Greenway Center Dr Ste 300, Greenbelt, MD 20770
Phone
(301) 277-4844
Enumerated
Apr 27, 2022
Record last updated
Jul 16, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 7500 Greenway Center Dr Ste 300

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sarah Chang, MDOphthalmology Physician1790280402
  2. Diana Chu, ODOptometrist1174149207
  3. Joseph Mekhail, M.D.Cornea and External Diseases Specialist Physician1023540846

Verify Zachary M. Eller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0107588    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

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77% fewer Medicare Part D claims than the average ophthalmology physician in 2024

342 Medicare Part D claims for 77 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.

  1. Zachary Eller342
  2. Specialty average1,518

Most prescribed

  1. Latanoprost115 claims
  2. Dorzolamide-Timolol58 claims
  3. Brimonidine Tartrate28 claims
  4. Timolol Maleate17 claims
  5. Neomycin-Polymyxin-Dexameth15 claims
  6. Restasis Multidose13 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.

Ophthalmology Physician providers in Maryland

There are 588 ophthalmology physician records in Maryland.

All 588 in Maryland → Every provider in Greenbelt →

Other ophthalmology physician records in Maryland

  1. Abdulrahman Abodarahim, MBBCHBaltimore, MD1770182560
  2. Donald Abrams, M.D.Baltimore, MD1841253218
  3. Lisa Abrams, M.D.Lutherville, MD1972582393
  4. Neal Adams, MDSilver Spring, MD1851354500
  5. Richard Adler, M.D.Baltimore, MD1629076179
  6. Arturo Aglubat, M.D.Bel Air, MD1609855055
  7. Omar Ahmad, MDWaldorf, MD1093715310
  8. Zaaira Ahmad, MDSalisbury, MD1154591964
  9. Ishrat Ahmed, MDBaltimore, MD1659828432
  10. Esen Akpek, M.D.Baltimore, MD1851356943

Common questions

What is Zachary M. Eller, M.D., M.S.'s NPI number?

Zachary M. Eller, M.D., M.S.'s National Provider Identifier (NPI) is 1841935582, issued on Apr 27, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Zachary M. Eller, M.D., M.S. located?

The NPPES record lists a practice address at 7500 Greenway Center Dr Ste 300, Greenbelt, MD, 20770. Phone: (301) 277-4844. Providers update this record themselves, so call before visiting.

How can I verify Zachary M. Eller, M.D., M.S.'s license?

NPPES lists Maryland license number D0107588, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Zachary M. Eller, M.D., M.S. prescribe under Medicare Part D?

In 2024, Zachary M. Eller, M.D., M.S. had 342 Medicare Part D claims for 77 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.