Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Alvin Green III

Hospitalist Physician in Mobile, AL · enumerated 2020.

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

National Provider Identifier

1942838875

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Registry record

Entity type Individual (Type 1)

Name Dr. John Alvin Green III

Sex Male

Practice address 75 S University Blvd, Mobile, AL, 36608

Phone (251) 471-7870

Fax (251) 460-7923

Enumeration date Mar 27, 2020

Last updated in NPPES Oct 30, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 2783 (AL) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 2738 (AL) Primary

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 John Green?

John Green is registered in NPPES with the primary taxonomy of Hospitalist Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Donnelly Howard Internal Medicine Physician · Mobile, AL NPI 1689613473 Ara Travers Family Medicine Physician · Mobile, AL NPI 1659314979 Gino Divittorio Rheumatology Physician · Mobile, AL NPI 1366456295 Teresa Oglesby Rheumatology Physician · Mobile, AL NPI 1740295559 Thomas Myers Rheumatology Physician · Mobile, AL NPI 1417963471 Yanming Xing Rheumatology Physician · Mobile, AL NPI 1154594737 Laura Harris Physician Assistant · Mobile, AL NPI 1225389976 William Kittrell Internal Medicine Physician · Mobile, AL NPI 1669817169

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-30.