Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nikifor K Konstantinov, MD

Dermatology Physician in Albuquerque, NM · enumerated 2016.

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

National Provider Identifier

1821442583

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Registry record

Entity type Individual (Type 1)

Name Nikifor K Konstantinov

Credential MD

Sex Male

Practice address 933 Bradbury Dr Se Ste 2222, Albuquerque, NM, 87106

Phone (505) 272-6222

Enumeration date Apr 19, 2016

Last updated in NPPES Apr 2, 2025

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License MD2021-0475 (NM) 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

Is NPI 1821442583 active?

Yes, as of the latest NPPES snapshot, NPI 1821442583 is active (record last updated 2025-04-02).

How do I verify Nikifor Konstantinov's NPI record?

Cross-check NPI 1821442583 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 2025-04-02.