Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jan Ellen Maisel, MD PHD

Pediatrics Physician in Larkspur, CA · enumerated 2006.

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

National Provider Identifier

1720067226

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Registry record

Entity type Individual (Type 1)

Name Jan Ellen Maisel

Credential MD PHD

Sex Female

Practice address 5 Bon Air Road, Ste. 105, Larkspur, CA, 94939

Phone (415) 461-0440

Fax (415) 461-3792

Enumeration date Jan 12, 2006

Last updated in NPPES Jun 3, 2015

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License G47504 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
00G475040	Medicaid	CA	-

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 Jan Maisel's NPI record?

Cross-check NPI 1720067226 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1720067226 active?

Yes, as of the latest NPPES snapshot, NPI 1720067226 is active (record last updated 2015-06-03).

Other providers at this practice address

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John Lee Pediatrics Physician · Larkspur, CA NPI 1790764108 Stephen Santucci Pediatrics Physician · Larkspur, CA NPI 1306801287 Jeanette White Pediatrics Physician · Larkspur, CA NPI 1508878935

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-06-03.