John Lester Schaeffer, D.O.
Child & Adolescent Psychiatry Physician · San Francisco, CA
John Lester Schaeffer, D.O. is a child & adolescent psychiatry physician with a practice address in San Francisco, California, and NPI 1497743918, issued on Oct 10, 2005. Check the license (California 20A9536, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Lester Schaeffer
- Credential
- D.O.
- Primary taxonomy
- Child & Adolescent Psychiatry Physician 2084P0804X
- License numbers
- 20A9536 CA
38750 CO
A-1243-03 NM
Self-reported in NPPES; status is on the state search - Practice location
- 101 California St Ste 2710, San Francisco, CA 94111
- Phone
- (916) 320-4222
- Enumerated
- Oct 10, 2005
- Record last updated
- May 4, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (888) 370-2829
- Medicaid ID
- FK534Z CA
- Entity
- Type 1 · individual
8 nearest child & adolescent psychiatry physician records → All 1,009 in California → Look up another NPI →
Verify John Lester Schaeffer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A9536Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average child & adolescent psychiatry physician in 2024
255 Medicare Part D claims for 56 beneficiaries, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D.
Most prescribed
- Olanzapine17 claims
- Risperidone17 claims
- Fluoxetine Hcl14 claims
- Clonazepam13 claims
- Haloperidol Decanoate12 claims
- Benztropine Mesylate11 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.
John Lester Schaeffer among 1,009 child & adolescent psychiatry physician records in California
John Lester Schaeffer, D.O. is one of 1,009 child & adolescent psychiatry physician records with a practice address in California. 55% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 97% newer
- In a Medicare fileYes · 55% of these records are
- In the CMS Doctors and Clinicians fileNo · 21% of these records are
- Record last updated2020 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Child & Adolescent Psychiatry Physician providers in California
There are 1,009 child & adolescent psychiatry physician records in California.
All 1,009 in California → Every provider in San Francisco → Child & Adolescent Psychiatry Physician nationwide →
The 8 child & adolescent psychiatry physician records with the nearest ZIP codes
- Nikita Dixon, M.D.San Francisco, CA 941111477725984
- Dean Freedlander, M.D.San Francisco, CA 941111174735732
- Minnette Murphy, MDSan Francisco, CA 941101700989308
- Jessica Plauche, M.D.San Francisco, CA 941101073832903
- Madhanika Srirama, MDSan Francisco, CA 941101073660080
- Sivakumar Sundaram, MDSan Francisco, CA 941101790244051
- Judah MirvishSan Francisco, CA 941091073045381
- Seth Hammerman, MDSan Francisco, CA 941141295891950
Common questions
What is John Lester Schaeffer, D.O.'s NPI number?
John Lester Schaeffer, D.O.'s National Provider Identifier (NPI) is 1497743918, issued on Oct 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Lester Schaeffer, D.O. located?
The NPPES record lists a practice address at 101 California St Ste 2710, San Francisco, CA, 94111. Phone: (916) 320-4222. Providers update this record themselves, so call before visiting.
How can I verify John Lester Schaeffer, D.O.'s license?
NPPES lists California license number 20A9536, 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 John Lester Schaeffer, D.O. prescribe under Medicare Part D?
In 2024, John Lester Schaeffer, D.O. had 255 Medicare Part D claims for 56 beneficiaries; the average among child & adolescent psychiatry physician prescribers was 504. 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.