NPPES file of Aug 9, 2026

Joan Grant Sullivan, MD

Psychiatry Physician · Berkeley, CA

Joan Grant Sullivan, MD is a psychiatry physician with a practice address in Berkeley, California, and NPI 1851445373, issued on Jan 22, 2007. Check the license (California C23284, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1851445373
Name
Joan Grant Sullivan
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
C23284 CA
Self-reported in NPPES; status is on the state search
Practice location
1749 Martin Luther King JR Way, Berkeley, CA 94709
Phone
(510) 841-8484
Enumerated
Jan 22, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1749 Martin Luther King JR Way

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cris Bissonnette, PMHNP, FNPPsychiatric/Mental Health Nurse Practitioner1619216009
  2. Hannah Bosley, PHDClinical Psychologist1023733565
  3. Jennifer Casper, PSYDClinical Psychologist1710303102
  4. Joseph Chernick, PHDClinical Psychologist1215093851
  5. Claramarie Collins, PSYDClinical Psychologist1215197918
  6. Robert Dolgoff, M.D.Psychiatry Physician1659437291

Verify Joan Grant Sullivan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C23284
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Joan Grant Sullivan among 8,673 psychiatry physician records in California

Joan Grant Sullivan, 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 2007, is newer than 33% of them.

  • NPI issued2007 · 33% of these records are older, 48% 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.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Karl Adler, M.D.Berkeley, CA 947091609939818
  2. Robert Dolgoff, M.D.Berkeley, CA 947091659437291
  3. Richard Levine, MDBerkeley, CA 947091235283755
  4. Robert Mackay, M.D.Berkeley, CA 947091083770630
  5. Todd Mitchell, M.D.Berkeley, CA 947091194878728
  6. Sarah Stadler, M.D.Berkeley, CA 947091639200850
  7. Peter Barglow, MDBerkeley, CA 947081003849548
  8. Ralph Barron, M.D.Berkeley, CA 947081982618351

Common questions

What is Joan Grant Sullivan, MD's NPI number?

Joan Grant Sullivan, MD's National Provider Identifier (NPI) is 1851445373, issued on Jan 22, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Joan Grant Sullivan, MD located?

The NPPES record lists a practice address at 1749 Martin Luther King JR Way, Berkeley, CA, 94709. Phone: (510) 841-8484. Providers update this record themselves, so call before visiting.

How can I verify Joan Grant Sullivan, MD's license?

NPPES lists California license number C23284, 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.