Robert K. Koida, M.D.
Family Medicine Physician · Sonoma, CA
Robert K. Koida, M.D. is a family medicine physician with a practice address in Sonoma, California, and NPI 1275646507, issued on Aug 17, 2006. Check the license (California G20444, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Robert K. Koida
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G20444 CA
Self-reported in NPPES; status is on the state search - Practice location
- 181 Andrieux St, Sonoma, CA 95476
- Phone
- (707) 938-3870
- Enumerated
- Aug 17, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (707) 938-3895
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 181 Andrieux St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Ahn, D.O.Ophthalmology Physician1932416781
- Dominic Amara, M.D.Obstetrics & Gynecology Physician1518958313
- Douglas Anderson, PHDCommunity Health Worker1649713181
- Eliot Carter, D.C.Chiropractor1386714517
- Richard Daffurn, D.D.S.Dentist1407956345
- Charles De Torres, M.D.Pediatrics Physician1770510521
Verify Robert K. Koida in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G20444Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Robert K. Koida among 17,133 family medicine physician records in California
Robert K. Koida, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2007 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 family medicine physician records list a practice address in Sonoma
They are 20 of the 395 NPPES records with a practice address in Sonoma, and 17,133 family medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17,133 in California → Every provider in Sonoma → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Carol Ahern, MDSonoma, CA 954761760546915
- Clayton Drake, MDSonoma, CA 954761689739039
- Jennifer Hasa, M.D.Sonoma, CA 954761982951851
- Carolyn Ho, MD/MPHSonoma, CA 954761851928154
- Jared Hubbell, M.D.Sonoma, CA 954761538387428
- Geeta Malik, M.D.Sonoma, CA 954761740262302
- Subhash Mishra, MDSonoma, CA 954761285695437
- Ralph Pulverman, D.O.Sonoma, CA 954761093760092
Common questions
What is Robert K. Koida, M.D.'s NPI number?
Robert K. Koida, M.D.'s National Provider Identifier (NPI) is 1275646507, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert K. Koida, M.D. located?
The NPPES record lists a practice address at 181 Andrieux St, Sonoma, CA, 95476. Phone: (707) 938-3870. Providers update this record themselves, so call before visiting.
How can I verify Robert K. Koida, M.D.'s license?
NPPES lists California license number G20444, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.