Joel Marcus, MD
Psychiatry Physician · Berkeley, CA
Joel Marcus, MD is a psychiatry physician with a practice address in Berkeley, California, and NPI 1912093089, issued on Oct 5, 2006. Check the license (California A42498, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Joel Marcus
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A42498 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2041 Bancroft Way, Berkeley, CA 94704
- Phone
- (510) 649-1240
- Enumerated
- Oct 5, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 2041 Bancroft Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Leah Balowitz, PSY.D.Clinical Psychologist1891099164
- Lawrence Cohen, M.D.Psychiatry Physician1952528598
- Felicia Ferlin, DPTPhysical Therapist1821419987
- Diane Gerstler, LCSWClinical Social Worker1639387400
- Allan Horwitz, PTPhysical Therapist1174684013
- Diane Kern, PTPhysical Therapist1083782726
Verify Joel Marcus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A42498Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Joel Marcus among 8,673 psychiatry physician records in California
Joel Marcus, 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 not. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 67% newer
- In a Medicare fileNo · 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).
106 psychiatry physician records list a practice address in Berkeley
They are 106 of the 4,898 NPPES records with a practice address in Berkeley, and 8,673 psychiatry physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 8,673 in California → Every provider in Berkeley → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Nancy Ebbert, M.D.Berkeley, CA 947041356424386
- Alaa Elhaj, MDBerkeley, CA 947041932141520
- Craig Fischer, M.D.Berkeley, CA 947041669435053
- Sebastien Fromont, MDBerkeley, CA 947041497784532
- Joseph Hartog, MDBerkeley, CA 947041043319254
- Jeffrey Johns, M.D.Berkeley, CA 947041922096932
- Emily Lynn, M.D.Berkeley, CA 947041548322209
- John Mesaros, MDBerkeley, CA 947041669587580
Common questions
What is Joel Marcus, MD's NPI number?
Joel Marcus, MD's National Provider Identifier (NPI) is 1912093089, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joel Marcus, MD located?
The NPPES record lists a practice address at 2041 Bancroft Way, Berkeley, CA, 94704. Phone: (510) 649-1240. Providers update this record themselves, so call before visiting.
How can I verify Joel Marcus, MD's license?
NPPES lists California license number A42498, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.