Nicholas Spencer Benjamin Lackman Baker, MD
Psychiatry Physician · San Mateo, CA
Nicholas Spencer Benjamin Lackman Baker, MD is a psychiatry physician with a practice address in San Mateo, California, and NPI 1760060115, issued on Mar 29, 2021. Check the license (California A201790, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nicholas Spencer Benjamin Lackman Baker
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- A201790 CA
12985841-1205 UT
Self-reported in NPPES; status is on the state search - Practice location
- 1900 Ofarrell St Ste 140, San Mateo, CA 94403
- Phone
- (650) 393-4788
- Enumerated
- Mar 29, 2021
- Record last updated
- Dec 16, 2025
- Medicare enrollment
- Enrolled (PECOS I20250724002125); accepts Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1900 Ofarrell St Ste 140
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Oner Gonen, MDPsychiatry Physician1528598216
Verify Nicholas Spencer Benjamin Lackman Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A201790Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Bay Psychiatric AssociatesBerkeley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Spencer Benjamin Lackman Baker among 8,673 psychiatry physician records in California
Nicholas Spencer Benjamin Lackman Baker, 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 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2021 · median 2005 among the 3,295 with a school on file
- Record last updated2025 · 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).
89 psychiatry physician records list a practice address in San Mateo
They are 89 of the 3,909 NPPES records with a practice address in San Mateo, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in San Mateo → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Kathleen Akiyama, M.D.San Mateo, CA 944031194886879
- Nasrin Bashiri, MDSan Mateo, CA 944031700974920
- Hung-Ming Chu, M.D.San Mateo, CA 944031790834174
- Vikas Duvvuri, M.D., PH.D.San Mateo, CA 944031255470480
- D. Feeley, M.D.San Mateo, CA 944031548351158
- Mina Fisher, M.D.San Mateo, CA 944031124037874
- Nandini Ganpule, MDSan Mateo, CA 944031326110156
- Lynne Haynes-Tucker, MDSan Mateo, CA 944031689737157
Common questions
What is Nicholas Spencer Benjamin Lackman Baker, MD's NPI number?
Nicholas Spencer Benjamin Lackman Baker, MD's National Provider Identifier (NPI) is 1760060115, issued on Mar 29, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Spencer Benjamin Lackman Baker, MD located?
The NPPES record lists a practice address at 1900 Ofarrell St Ste 140, San Mateo, CA, 94403. Phone: (650) 393-4788. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Spencer Benjamin Lackman Baker, MD's license?
NPPES lists California license number A201790, 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. 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.