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

Mr. Phillip Riddle, MD

Anesthesiology Physician in Vallejo, CA · enumerated 2006.

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

National Provider Identifier

1861437360

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Phillip Riddle

Credential MD

Sex Male

Practice address Vallejo, CA, 94589

Phone (707) 554-4444

Enumeration date Jun 18, 2006

Last updated in NPPES Oct 31, 2007

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

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License G86016 (CA) 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
00G860160	Other	CA	BS OF CA
00G860160	Medicaid	CA	-
P00353126	Other	CA	RAILROAD MEDICARE
00G860161	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

What is the NPI number for Phillip Riddle?

The National Provider Identifier (NPI) for Phillip Riddle is 1861437360, a Type 1 (individual) record in the CMS NPPES registry.

Where does Phillip Riddle practice?

The practice location on file with NPPES is in Vallejo, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Sutter Solano Medical Center General Acute Care Hospital · Vallejo, CA NPI 1831177203 James Krasno Anatomic Pathology & Clinical Pathology Physician · Vallejo, CA NPI 1366401549 Sudha Sawkar Anesthesiology Physician · Vallejo, CA NPI 1841258324 Joel Kahn Emergency Medicine Physician · Vallejo, CA NPI 1255371423 William Melton Emergency Medicine Physician · Vallejo, CA NPI 1720029465 Travis Harris Emergency Medicine Physician · Vallejo, CA NPI 1326081696 Lee Shratter Diagnostic Radiology Physician · Vallejo, CA NPI 1336175173 Michael Brodsky Diagnostic Radiology Physician · Vallejo, CA NPI 1497781348

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-31.