Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

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

Ophthalmology Physician in Greenbelt, MD · enumerated 2022.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1841935582

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Zachary M Eller

Credential M.D., M.S.

Sex Male

Practice address 7500 Greenway Center Dr Ste 300, Greenbelt, MD, 20770

Phone (301) 277-4844

Enumeration date Apr 27, 2022

Last updated in NPPES Jul 16, 2026

Taxonomy & licenses

207WX0009X Glaucoma Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License D0107588 (MD) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License D0107588 (MD) Primary

207WX0120X Cornea and External Diseases Specialist Physician Allopathic & Osteopathic Physicians · License D0107588 (MD) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Zachary Eller?

The National Provider Identifier (NPI) for Zachary Eller is 1841935582, a Type 1 (individual) record in the CMS NPPES registry.

Where does Zachary Eller practice?

The practice location on file with NPPES is in Greenbelt, MD. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Washington Eye Institute, LLC Ophthalmology Physician · Greenbelt, MD NPI 1740450816 Joseph Mekhail Cornea and External Diseases Specialist Physician · Greenbelt, MD NPI 1023540846 Sarah Chang Ophthalmology Physician · Greenbelt, MD NPI 1790280402 Diana Chu Optometrist · Greenbelt, MD NPI 1174149207 Washington Eye Institute, LLC Optometrist · Greenbelt, MD NPI 1003773474

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-16.