Joan Evelyn Friedson, MD
Psychiatry Physician · La Jolla, CA
Joan Evelyn Friedson, MD is a psychiatry physician with a practice address in La Jolla, California, and NPI 1770621062, issued on Feb 1, 2007. Check the license (California G069538, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joan Evelyn Friedson
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G069538 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1020 Prospect St, La Jolla, CA 92037
- Phone
- (858) 551-8171
- Enumerated
- Feb 1, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (858) 551-8127
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1020 Prospect St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Calvin Colarusso, M.D.Child & Adolescent Psychiatry Physician1457775850
- Haig Koshkarian, M.D.Psychiatry Physician1578901161
Verify Joan Evelyn Friedson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G069538Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average psychiatry physician in 2024
164 Medicare Part D claims for 22 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Clonazepam24 claims
- Bupropion Xl23 claims
- Buspirone Hcl20 claims
- Trazodone Hcl20 claims
- Sertraline Hcl13 claims
- Zolpidem Tartrate Er13 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.
Joan Evelyn Friedson among 8,673 psychiatry physician records in California
Joan Evelyn Friedson, MD 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 2007, is newer than 33% of them.
- NPI issued2007 · 33% of these records are older, 48% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2007 · 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).
90 psychiatry physician records list a practice address in La Jolla
They are 90 of the 3,648 NPPES records with a practice address in La Jolla, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in La Jolla → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Jason Bennett, M.D.La Jolla, CA 920371346211208
- Claudio Demb, M.D.La Jolla, CA 920371730174921
- Katharine Dixon, MDLa Jolla, CA 920371598705469
- Deirdre Elliott, MDLa Jolla, CA 920371760496145
- Charles Ettari, M.D.La Jolla, CA 920371629096631
- Sonya Hintz, M.D.La Jolla, CA 920371790774446
- Charles Hollingsworth, MDLa Jolla, CA 920371992720098
- Shashita Inamdar, M.D., PH.D, DABPNLa Jolla, CA 920371003861139
Common questions
What is Joan Evelyn Friedson, MD's NPI number?
Joan Evelyn Friedson, MD's National Provider Identifier (NPI) is 1770621062, issued on Feb 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Joan Evelyn Friedson, MD located?
The NPPES record lists a practice address at 1020 Prospect St, La Jolla, CA, 92037. Phone: (858) 551-8171. Providers update this record themselves, so call before visiting.
How can I verify Joan Evelyn Friedson, MD's license?
NPPES lists California license number G069538, 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 Joan Evelyn Friedson, MD prescribe under Medicare Part D?
In 2024, Joan Evelyn Friedson, MD had 164 Medicare Part D claims for 22 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.