Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Patrick Whelan, MD PHD

Q: What is the NPI number for John Whelan?

The National Provider Identifier (NPI) for John Whelan is 1083681258, a Type 1 (individual) record in the CMS NPPES registry.

Pediatric Rheumatology Physician in Santa Monica, CA · enumerated 2006.

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

National Provider Identifier

1083681258

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Registry record

Entity type Individual (Type 1)

Name Dr. John Patrick Whelan

Credential MD PHD

Sex Male

Practice address 1250 16th St # C2304, Santa Monica, CA, 90404

Phone (310) 319-4698

Fax (310) 319-4908

Enumeration date Mar 7, 2006

Last updated in NPPES Nov 12, 2019

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A53446 (CA) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License A53446 (CA) Secondary

2080P0216X Pediatric Rheumatology Physician Allopathic & Osteopathic Physicians · License A53446 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
150043	Other	MA	TUFTS HEALTH PLAN
J21870	Other	MA	BCBS MA
3204120	Medicaid	MA	-

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 John Whelan?

The National Provider Identifier (NPI) for John Whelan is 1083681258, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Whelan practice?

The practice location on file with NPPES is in Santa Monica, CA. 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 2019-11-12.