Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Karim Aziz, M.D.

Pain Medicine (Anesthesiology) Physician in Oxon Hill, MD · enumerated 2007.

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

National Provider Identifier

1437356748

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Registry record

Entity type Individual (Type 1)

Name Dr. John Karim Aziz

Credential M.D.

Sex Male

Practice address 5620 St. Barnabas Rd, Suite 300, Oxon Hill, MD, 20745

Phone (301) 651-5137

Fax (866) 392-9794

Enumeration date Jun 29, 2007

Last updated in NPPES Sep 9, 2009

Taxonomy & licenses

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License D0036868 (MD) 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

How do I verify John Aziz's NPI record?

Cross-check NPI 1437356748 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1437356748 active?

Yes, as of the latest NPPES snapshot, NPI 1437356748 is active (record last updated 2009-09-09).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-09-09.