NPPES file of Aug 9, 2026

Michael Allen Clark, M.D.

Psychiatry Physician · Loma Linda, CA

Michael Allen Clark, M.D. is a psychiatry physician with a practice address in Loma Linda, California, and NPI 1306105986, issued on May 16, 2012. Check the license (California A130026, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1306105986
Name
Michael Allen Clark
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A130026 CA
Self-reported in NPPES; status is on the state search
Practice location
11234 Anderson St, Loma Linda, CA 92354
Phone
(909) 558-9532
Enumerated
May 16, 2012
Record last updated
Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160519000936); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 2011
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →

Also registered at 11234 Anderson St

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

  1. Carolyn AbbasiAnesthesiology Physician1811287311
  2. Marian Abdelmalek, DOInternal Medicine Physician1285218024
  3. Faiz Abdur-Rahman, MDStudent in an Organized Health Care Education/Training Program1144073768
  4. Marc Abou AssaliStudent in an Organized Health Care Education/Training Program1689317265
  5. Adina Achiriloaie, MDDiagnostic Neuroimaging (Radiology) Physician1992983282
  6. Ana Acosta, MDStudent in an Organized Health Care Education/Training Program1265179774

Verify Michael Allen Clark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A130026    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

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3.3 times the Medicare Part D claims of the average psychiatry physician in 2024

3,328 Medicare Part D claims for 302 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.

  1. Michael Clark3,328
  2. Specialty average1,000

Most prescribed

  1. Alprazolam245 claims
  2. Clonazepam232 claims
  3. Gabapentin227 claims
  4. Trazodone Hcl198 claims
  5. Quetiapine Fumarate184 claims
  6. Lorazepam143 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

  1. Southern California Permanente Medical GroupVentura, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael Allen Clark among 8,673 psychiatry physician records in California

Michael Allen Clark, M.D. 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 2012, is newer than 66% of them.

  • NPI issued2012 · 66% of these records are older, 31% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2011 · median 2005 among the 3,295 with a school on file
  • Record last updated2021 · 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).

47 psychiatry physician records list a practice address in Loma Linda

They are 47 of the 4,863 NPPES records with a practice address in Loma Linda, and 8,673 psychiatry physician records in California.

All 8,673 in California → Every provider in Loma Linda → Psychiatry Physician nationwide →

The 8 psychiatry physician records with the nearest ZIP codes

  1. Michael Christensen, M.D.Loma Linda, CA 923541518081967
  2. George Christison, M.D.Loma Linda, CA 923541174548135
  3. Jennifer FerrerLoma Linda, CA 923541821299660
  4. Teresa Frausto, M.D.Loma Linda, CA 923541992737068
  5. Leia Gill, M.D.Loma Linda, CA 923541396922605
  6. Carmen Gonzales-Nate, M.D.Loma Linda, CA 923541063578607
  7. Lauren Grawert, MDLoma Linda, CA 923541508093543
  8. Serafin Lalas, M.D.Loma Linda, CA 923541700050515

Common questions

What is Michael Allen Clark, M.D.'s NPI number?

Michael Allen Clark, M.D.'s National Provider Identifier (NPI) is 1306105986, issued on May 16, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Michael Allen Clark, M.D. located?

The NPPES record lists a practice address at 11234 Anderson St, Loma Linda, CA, 92354. Phone: (909) 558-9532. Providers update this record themselves, so call before visiting.

How can I verify Michael Allen Clark, M.D.'s license?

NPPES lists California license number A130026, 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 Michael Allen Clark, M.D. prescribe under Medicare Part D?

In 2024, Michael Allen Clark, M.D. had 3,328 Medicare Part D claims for 302 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.