Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Michael R. Bartos, M.D.
Psychiatry Physician in Sonoma, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1679625891
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Michael R. Bartos
Credential M.D.
Sex Male
Practice address 19270 Sonoma Highway, Sonoma, CA, 94576
Phone (707) 939-6070
Fax (707) 939-6077
Enumeration date Jan 17, 2007
Last updated in NPPES Mar 7, 2017
Taxonomy & licenses
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 |
|---|---|---|---|
| 00G393680 | 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.
Frequently asked questions
Where does Michael Bartos practice?
The practice location on file with NPPES is in Sonoma, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Michael Bartos?
The National Provider Identifier (NPI) for Michael Bartos is 1679625891, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-07.