Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Stuart W Mccalley, M.D.

Pulmonary Disease Physician in Belfast, ME · enumerated 2006.

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

National Provider Identifier

1588635718

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Registry record

Entity type Individual (Type 1)

Name Dr. Stuart W Mccalley

Credential M.D.

Sex Male

Practice address 116 Northport Ave Ste 218, Belfast, ME, 04915

Phone (207) 930-6715

Fax (207) 930-4674

Enumeration date Jan 27, 2006

Last updated in NPPES Mar 12, 2019

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 014694 (CT) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 014694 (CT) Secondary

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 014694 (CT) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License MD21146 (ME) 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
MD21146	Other	ME	STATE OF MAINE

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

How do I verify Stuart Mccalley's NPI record?

Cross-check NPI 1588635718 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1588635718 active?

Yes, as of the latest NPPES snapshot, NPI 1588635718 is active (record last updated 2019-03-12).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-12.