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Dr. Johnny Y Mei, MD

Internal Medicine Physician in Elmira, NY · enumerated 2007.

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

National Provider Identifier

1790808095

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Registry record

Entity type Individual (Type 1)
Name Dr. Johnny Y Mei
Credential MD
Sex Male
Practice address 600 Roe Ave, Hospitalist Department, Elmira, NY, 14905
Phone (607) 737-7770
Fax (607) 271-3686
Enumeration date Apr 9, 2007
Last updated in NPPES Aug 21, 2025

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 048232 (CT) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 252143 (NY) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD00047863 (WA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 48232 (CT) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 252143 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
04586527 Medicaid NY -
8508137 Medicaid WA -
5149ME Other WA BLUE SHIELD # VM

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.

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Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Johnny Mei?
Johnny Mei is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-21.