Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Michael Alan Johnson, DPM

Podiatrist in Petaluma, CA · enumerated 2006.

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

National Provider Identifier

1205847209

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael Alan Johnson

Credential DPM

Sex Male

Practice address Petaluma, CA, 94954

Phone (707) 763-2253

Fax (707) 763-7030

Enumeration date Aug 11, 2006

Last updated in NPPES Nov 3, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License E3671 (CA) Primary

DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM credential

Other identifiers

Identifier	Type	State	Issuer
480027344	Other	CA	RAILROAD MEDICARE
000E36712	Other	CA	MEDICAL
000E36712	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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Michael Johnson?

Michael Johnson is registered in NPPES with the primary taxonomy of Podiatrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Thomas Maloney Internal Medicine Physician · Petaluma, CA NPI 1275533887 Farid Osman Nephrology Physician · Petaluma, CA NPI 1962423103 Nikola Lozanov Family Medicine Physician · Petaluma, CA NPI 1417968512 A.S.Lalith Mohan M.D. Prof. Inc Cardiovascular Disease Physician · Petaluma, CA NPI 1366559486 Adamane Lalith Mohan Cardiovascular Disease Physician · Petaluma, CA NPI 1982893582 St Jude Hospital Yorba Linda Podiatrist · Petaluma, CA NPI 1831587955

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-03.