Felicitas Koster, D.O.
Psychiatry Physician · San Francisco, CA
Felicitas Koster, D.O. is a psychiatry physician with a practice address in San Francisco, California, and NPI 1295025005, issued on Apr 13, 2011. Check the license (California 20A21102, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Felicitas Koster
- Credential
- D.O.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- 20A21102 CA
006321 AZ
328576 NY
Self-reported in NPPES; status is on the state search - Practice location
- 100 Pine St Ste 1250, San Francisco, CA 94111
- Phone
- (415) 985-6697
- Enumerated
- Apr 13, 2011
- Record last updated
- Apr 15, 2025
- Fax
- (888) 815-3583
- Medicare enrollment
- Enrolled (PECOS I20240217000148); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 100 Pine St Ste 1250
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Felicitas Koster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A21102Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average psychiatry physician in 2024
148 Medicare Part D claims for 36 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Lamotrigine13 claims
- Duloxetine Hcl12 claims
- Quetiapine Fumarate11 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
- Mccd CA Psychiatry Services PCSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Felicitas Koster among 8,673 psychiatry physician records in California
Felicitas Koster, D.O. 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. Its NPI, issued in 2011, is newer than 63% of them.
- NPI issued2011 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2011 · median 2005 among the 3,295 with a school on file
- Record last updated2025 · 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).
763 psychiatry physician records list a practice address in San Francisco
They are 763 of the 38,143 NPPES records with a practice address in San Francisco, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in San Francisco → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Samih Boutros, MDSan Francisco, CA 941111811022064
- Megan Crochet, M.D.San Francisco, CA 941111730321399
- Jeffrey Hays, MDSan Francisco, CA 941111578798237
- James Hutchinson, M.D.San Francisco, CA 941111437177607
- Robert Johnson, M.D., J.D., LL.M.San Francisco, CA 941111043505936
- Lawrence Kaplan, D.O.San Francisco, CA 941111144540451
- Sherrell Lam, M.D.San Francisco, CA 941111487817797
- Jessica Langenhan, MDSan Francisco, CA 941111790836104
Common questions
What is Felicitas Koster, D.O.'s NPI number?
Felicitas Koster, D.O.'s National Provider Identifier (NPI) is 1295025005, issued on Apr 13, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Felicitas Koster, D.O. located?
The NPPES record lists a practice address at 100 Pine St Ste 1250, San Francisco, CA, 94111. Phone: (415) 985-6697. Providers update this record themselves, so call before visiting.
How can I verify Felicitas Koster, D.O.'s license?
NPPES lists California license number 20A21102, 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 Felicitas Koster, D.O. prescribe under Medicare Part D?
In 2024, Felicitas Koster, D.O. had 148 Medicare Part D claims for 36 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.