Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Adair Green, MD

Critical Care Medicine (Internal Medicine) Physician in Altoona, PA · enumerated 2007.

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

National Provider Identifier

1871792127

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Registry record

Entity type Individual (Type 1)

Name David Adair Green

Credential MD

Sex Male

Practice address 620 Howard Ave, Altoona, PA, 16601

Phone (412) 822-7410

Fax (412) 822-7411

Enumeration date Jul 17, 2007

Last updated in NPPES Jun 20, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 251796 (NY) Secondary

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 251796 (NY) Secondary

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License MD450833 (PA) Primary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 251796 (NY) Secondary

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
102898208-0002	Medicaid	PA	-
1871792127	Medicaid	TX	-

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

Is NPI 1871792127 active?

Yes, as of the latest NPPES snapshot, NPI 1871792127 is active (record last updated 2025-06-20).

How do I verify David Green's NPI record?

Cross-check NPI 1871792127 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-20.