Patrick Joseph Fitzsimmons, M.D.
Psychiatry Physician · Los Gatos, CA
Patrick Joseph Fitzsimmons, M.D. is a psychiatry physician with a practice address in Los Gatos, California, and NPI 1528109550, issued on Feb 11, 2007. Check the license (California G70088, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Patrick Joseph Fitzsimmons
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G70088 CA
Self-reported in NPPES; status is on the state search - Practice location
- 400 Carlton Ave, Los Gatos, CA 95032
- Phone
- (408) 358-2822
- Enumerated
- Feb 11, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (408) 868-9850
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 400 Carlton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Meenal ChaudhariMarriage & Family Therapist1619344199
- Mark Davidow, M.D.Psychiatry Physician1053437228
- Anita Hirsch, M.D.Psychiatry Physician1619062486
Verify Patrick Joseph Fitzsimmons in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G70088Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average psychiatry physician in 2024
580 Medicare Part D claims for 35 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Olanzapine51 claims
- Clonazepam47 claims
- Lorazepam46 claims
- Venlafaxine Hcl Er35 claims
- Alprazolam32 claims
- Fluoxetine Hcl26 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.
Patrick Joseph Fitzsimmons among 8,673 psychiatry physician records in California
Patrick Joseph Fitzsimmons, 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. 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).
19 psychiatry physician records list a practice address in Los Gatos
They are 19 of the 1,905 NPPES records with a practice address in Los Gatos, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Los Gatos → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Mark Davidow, M.D.Los Gatos, CA 950321053437228
- Justine Forbes, MDLos Gatos, CA 950321740579523
- Erin Griffiths, DOLos Gatos, CA 950321013237510
- Anita Hirsch, M.D.Los Gatos, CA 950321619062486
- Michelle Indianer, D.O.Los Gatos, CA 950321194885871
- Mandeep Kapur, MDLos Gatos, CA 950321205222874
- Yujin Lee, M.D.Los Gatos, CA 950321790124782
- Rodolfo Morales, MDLos Gatos, CA 950321821181611
Common questions
What is Patrick Joseph Fitzsimmons, M.D.'s NPI number?
Patrick Joseph Fitzsimmons, M.D.'s National Provider Identifier (NPI) is 1528109550, issued on Feb 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Patrick Joseph Fitzsimmons, M.D. located?
The NPPES record lists a practice address at 400 Carlton Ave, Los Gatos, CA, 95032. Phone: (408) 358-2822. Providers update this record themselves, so call before visiting.
How can I verify Patrick Joseph Fitzsimmons, M.D.'s license?
NPPES lists California license number G70088, 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 Patrick Joseph Fitzsimmons, M.D. prescribe under Medicare Part D?
In 2024, Patrick Joseph Fitzsimmons, M.D. had 580 Medicare Part D claims for 35 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.