Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alpen Nacar, M.D.

Q: What is the NPI number for Alpen Nacar?

The National Provider Identifier (NPI) for Alpen Nacar is 1821451972, a Type 1 (individual) record in the CMS NPPES registry.

Surgical Critical Care Physician in Manchester, NH · enumerated 2016.

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

National Provider Identifier

1821451972

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Registry record

Entity type Individual (Type 1)

Name Alpen Nacar

Credential M.D.

Sex Male

Practice address 1 Elliot Way, Manchester, NH, 03103

Phone (603) 669-5300

Enumeration date Apr 5, 2016

Last updated in NPPES Mar 5, 2025

Taxonomy & licenses

2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License 24699 (NH) 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 Alpen Nacar?

The National Provider Identifier (NPI) for Alpen Nacar is 1821451972, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alpen Nacar practice?

The practice location on file with NPPES is in Manchester, NH. 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 2025-03-05.