Olga Segal, MD
Psychiatry Physician · Kelseyville, CA
Olga Segal, MD is a psychiatry physician with a practice address in Kelseyville, California, and NPI 1821013764, issued on Jul 13, 2006. Check the license (California A85774, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Olga Segal
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A85774 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3455 Westridge Dr, Kelseyville, CA 95451
- Phone
- (707) 279-2932
- Enumerated
- Jul 13, 2006
- Record last updated
- May 6, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (707) 994-7096
- Medicare enrollment
- Enrolled (PECOS I20070108000532); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Verify Olga Segal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A85774Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average psychiatry physician in 2024
424 Medicare Part D claims for 92 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Aripiprazole56 claims
- Spravato32 claims
- Clonazepam27 claims
- Lorazepam21 claims
- Duloxetine Hcl19 claims
- Divalproex Sodium15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Segal Telepsychiatry NetworkMill Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
1 psychiatry physician records list a practice address in Kelseyville
They are 1 of the 40 NPPES records with a practice address in Kelseyville, and 8,673 psychiatry physician records in California.
Other psychiatry physician records in California
- Nancy Aaen, MDNapa, CA1609816669
- Criselda Abad-Santos, M.D.Woodland Hills, CA1760461826
- Mekabiz Abaian, MDSan Bernardino, CA1891090163
- Brenda Abarca, MDTorrance, CA1407485527
- Pilar Abascal, M.D.Los Angeles, CA1730528191
- Michele Abbasi, M.D.Westlake Village, CA1093940330
- Zohaib AbbasiMartinez, CA1013392224
- Sandy Abdelkedous, MDFresno, CA1306093109
- Nancy Abdelmalak, M.D.Elk Grove, CA1912137498
- Ezzat Abdelmalek, M.DDana Point, CA1992828826
Common questions
What is Olga Segal, MD's NPI number?
Olga Segal, MD's National Provider Identifier (NPI) is 1821013764, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Olga Segal, MD located?
The NPPES record lists a practice address at 3455 Westridge Dr, Kelseyville, CA, 95451. Phone: (707) 279-2932. Providers update this record themselves, so call before visiting.
How can I verify Olga Segal, MD's license?
NPPES lists California license number A85774, 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.
How much does Olga Segal, MD prescribe under Medicare Part D?
In 2024, Olga Segal, MD had 424 Medicare Part D claims for 92 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.