Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark E Mcallister, MD

Family Medicine Physician in Waterville, ME · enumerated 2007.

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

National Provider Identifier

1386844157

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mark E Mcallister

Credential MD

Sex Male

Practice address 149 North St, Waterville, ME, 04901

Phone (207) 872-1300

Fax (207) 872-1515

Enumeration date Jul 20, 2007

Last updated in NPPES Oct 16, 2012

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 018562 (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
432682699	Medicaid	ME	-

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 1386844157 active?

Yes, as of the latest NPPES snapshot, NPI 1386844157 is active (record last updated 2012-10-16).

How do I verify Mark Mcallister's NPI record?

Cross-check NPI 1386844157 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-16.