Clayton Matthew Bullock, MD, PHD
Psychiatry Physician · West Hollywood, CA
Clayton Matthew Bullock, MD, PHD is a psychiatry physician with a practice address in West Hollywood, California, and NPI 1891983748, issued on Oct 4, 2007. Check the license (California A94641, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Clayton Matthew Bullock
- Credential
- MD, PHD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A94641 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1152 N Poinsettia Place #7, West Hollywood, CA 90046
- Phone
- (323) 632-8144
- Enumerated
- Oct 4, 2007
- Record last updated
- Feb 11, 2022
- Fax
- (323) 632-8144
- Medicare enrollment
- Enrolled (PECOS I20090922000314); accepts Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Verify Clayton Matthew Bullock in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A94641Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average psychiatry physician in 2024
405 Medicare Part D claims for 96 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Clonazepam45 claims
- Trazodone Hcl44 claims
- Bupropion Xl24 claims
- Duloxetine Hcl23 claims
- Sertraline Hcl16 claims
- Escitalopram Oxalate15 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
- Permanente Medical Group IncSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Clayton Matthew Bullock among 8,673 psychiatry physician records in California
Clayton Matthew Bullock, MD, PHD 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 fileYes · 38% of these records are
- Graduated2004 · median 2005 among the 3,295 with a school on file
- Record last updated2022 · 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).
36 psychiatry physician records list a practice address in West Hollywood
They are 36 of the 2,619 NPPES records with a practice address in West Hollywood, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in West Hollywood → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Tsilya Bass, M.D.West Hollywood, CA 900461841330800
- Robert Chang, D.O.West Hollywood, CA 900461487724308
- Lawrence Genen, M.D.West Hollywood, CA 900461558521898
- Elizabeth HorstmannLos Angeles, CA 900461265759906
- Michael Ingram, M.S., M.D.Los Angeles, CA 900461427438415
- Richa Kalra, M.D.West Hollywood, CA 900461164807517
- Nathan Kuemmerle, M.D.West Hollywood, CA 900461821030560
- Asya Kupisk, MDLos Angeles, CA 900461386742831
Common questions
What is Clayton Matthew Bullock, MD, PHD's NPI number?
Clayton Matthew Bullock, MD, PHD's National Provider Identifier (NPI) is 1891983748, issued on Oct 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Clayton Matthew Bullock, MD, PHD located?
The NPPES record lists a practice address at 1152 N Poinsettia Place #7, West Hollywood, CA, 90046. Phone: (323) 632-8144. Providers update this record themselves, so call before visiting.
How can I verify Clayton Matthew Bullock, MD, PHD's license?
NPPES lists California license number A94641, 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 Clayton Matthew Bullock, MD, PHD prescribe under Medicare Part D?
In 2024, Clayton Matthew Bullock, MD, PHD had 405 Medicare Part D claims for 96 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.