Florence C. Irvine, M.D.
Psychiatry Physician · Upper Lake, CA
Florence C. Irvine, M.D. is a psychiatry physician with a practice address in Upper Lake, California, and NPI 1679874861, issued on Nov 4, 2010. Check the license (California G11335, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Florence C. Irvine
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G11335 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15525 Elk Mountain Road, Upper Lake, CA 95485
- Phone
- (707) 275-0903
- Enumerated
- Nov 4, 2010
- Record last updated
- Nov 4, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Verify Florence C. Irvine in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G11335Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Florence C. Irvine among 8,673 psychiatry physician records in California
Florence C. Irvine, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% 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 2010, is newer than 60% of them.
- NPI issued2010 · 60% of these records are older, 37% newer
- In a Medicare fileNo · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2010 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 psychiatry physician record lists a practice address in Upper Lake
They are 1 of the 27 NPPES records with a practice address in Upper Lake, and 8,673 psychiatry physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 8,673 in California → Every provider in Upper Lake → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Betty Lacy, MDUkiah, CA 954821750431532
- Daniel Mandelbaum, M.D.Ukiah, CA 954821407932395
- Megan Burns, M.D.Sonoma, CA 954761780737080
- John Evans, MDSonoma, CA 954761093733073
- Elena Fowler, MDSonoma, CA 954761457303869
- Soheila Khajavi, MDSonoma, CA 954761942257712
- Richard Kirk, M.D.Sonoma, CA 954761679611750
- Carol Locke, M.D.Sonoma, CA 954761396291225
Common questions
What is Florence C. Irvine, M.D.'s NPI number?
Florence C. Irvine, M.D.'s National Provider Identifier (NPI) is 1679874861, issued on Nov 4, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Florence C. Irvine, M.D. located?
The NPPES record lists a practice address at 15525 Elk Mountain Road, Upper Lake, CA, 95485. Phone: (707) 275-0903. Providers update this record themselves, so call before visiting.
How can I verify Florence C. Irvine, M.D.'s license?
NPPES lists California license number G11335, 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.