Jacob Michael Izenberg
Psychiatry Physician · San Francisco, CA
Jacob Michael Izenberg is a psychiatry physician with a practice address in San Francisco, California, and NPI 1457770463, issued on Apr 8, 2014. Check the license (California 138796, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jacob Michael Izenberg
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 138796 CA
Self-reported in NPPES; status is on the state search - Practice location
- 401 Parnassus Ave, San Francisco, CA 94143
- Phone
- (416) 476-7577
- Enumerated
- Apr 8, 2014
- Record last updated
- Oct 22, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20161013001953); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 401 Parnassus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bibhav Acharya, M.D.Psychiatry Physician1306137427
- Alexander AcostaStudent in an Organized Health Care Education/Training Program1770161036
- Eric Alcid, M.D., PH.D.Psychiatry Physician1831622174
- Sean Amegadzie, MDPsychiatry Physician1427685403
- Alexandra Apple, PHDClinical Neuropsychologist1033871207
- Regina Armas, LCSW, PH.D.Clinical Psychologist1730118217
Verify Jacob Michael Izenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 138796Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average psychiatry physician in 2024
14 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 79% of 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
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jacob Michael Izenberg among 8,673 psychiatry physician records in California
Jacob Michael Izenberg 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 2014, is newer than 71% of them.
- NPI issued2014 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2014 · median 2005 among the 3,295 with a school on file
- Record last updated2015 · 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
- Amy Berlin, MDSan Francisco, CA 941431730131939
- Stuart Eisendrath, MDSan Francisco, CA 941431982656187
- Ellen Haller, MDSan Francisco, CA 941431891747119
- Mardi Horowitz, MDSan Francisco, CA 941431740234038
- Descartes Li, MDSan Francisco, CA 941431962454157
- Jonathan Lichtmacher, M.D.San Francisco, CA 941431891717203
- Sudha Prathikanti, MDSan Francisco, CA 941431245297084
- Victor Reus, MDSan Francisco, CA 941431154372449
Common questions
What is Jacob Michael Izenberg's NPI number?
Jacob Michael Izenberg's National Provider Identifier (NPI) is 1457770463, issued on Apr 8, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Jacob Michael Izenberg located?
The NPPES record lists a practice address at 401 Parnassus Ave, San Francisco, CA, 94143. Phone: (416) 476-7577. Providers update this record themselves, so call before visiting.
How can I verify Jacob Michael Izenberg's license?
NPPES lists California license number 138796, 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 Jacob Michael Izenberg prescribe under Medicare Part D?
In 2024, Jacob Michael Izenberg had 14 Medicare Part D claims; 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.