Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Adam A Alter, MD

Q: What is the NPI number for Adam Alter?

The National Provider Identifier (NPI) for Adam Alter is 1437478138, a Type 1 (individual) record in the CMS NPPES registry.

Pulmonary Disease Physician in South Portland, ME · enumerated 2010 · practices at Chest Medicine Associates, PA.

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

National Provider Identifier

1437478138

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Registry record

Entity type Individual (Type 1)

Name Adam A Alter

Credential MD

Sex Male

Practice address 100 Foden Rd Ste 103, South Portland, ME, 04106

Phone (207) 828-1122

Enumeration date May 20, 2010

Last updated in NPPES Aug 14, 2019

Taxonomy & licenses

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

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License MC22206 (ME) Primary

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 Adam Alter?

The National Provider Identifier (NPI) for Adam Alter is 1437478138, a Type 1 (individual) record in the CMS NPPES registry.

Where does Adam Alter practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-08-14.