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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Irwin John Isaacs, M.D.

Pain Medicine (Anesthesiology) Physician in Albuquerque, NM · enumerated 2005.

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

National Provider Identifier

1942202205

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Registry record

Entity type Individual (Type 1)
Name Dr. Irwin John Isaacs
Credential M.D.
Sex Male
Practice address 4163 Montgomery Blvd Ne, Albuquerque, NM, 87109
Phone (505) 554-4843
Enumeration date Jun 1, 2005
Last updated in NPPES Feb 27, 2017

Taxonomy & licenses

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 2000-52 (NM) 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
374357 Other NM PRONET / AETNA
515538 Medicaid AZ -
58322 Medicaid NM -
66352 Medicaid NM -
NM009R83 Other NM BLUE CROSS BLUE SHIELD

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.

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Frequently asked questions

Is NPI 1942202205 active?
Yes, as of the latest NPPES snapshot, NPI 1942202205 is active (record last updated 2017-02-27).
How do I verify Irwin Isaacs's NPI record?
Cross-check NPI 1942202205 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 2017-02-27.