NPPES file of Aug 9, 2026

Alexander Richard Clarke, M.D.

Psychiatry Physician · Redwood City, CA

Alexander Richard Clarke, M.D. is a psychiatry physician with a practice address in Redwood City, California, and NPI 1982091062, issued on Apr 16, 2015. Check the license (California 143985, 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
1982091062
Name
Alexander Richard Clarke
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
143985 CA
Self-reported in NPPES; status is on the state search
Practice location
611 Veterans Blvd # 116, Redwood City, CA 94063
Phone
(650) 382-2090
Enumerated
Apr 16, 2015
Record last updated
Nov 17, 2020 (not updated in 6 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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Verify Alexander Richard Clarke in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 143985
    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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80% fewer Medicare Part D claims than the average psychiatry physician in 2024

196 Medicare Part D claims for 14 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Alexander Clarke196
  2. Specialty average1,000

Most prescribed

  1. Venlafaxine Hcl Er20 claims
  2. Fluoxetine Hcl16 claims
  3. Sertraline Hcl14 claims
  4. Alprazolam12 claims
  5. Desvenlafaxine Succinate Er12 claims
  6. Propranolol Hcl12 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.

Alexander Richard Clarke among 8,673 psychiatry physician records in California

Alexander Richard Clarke, 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 2015, is newer than 74% of them.

  • NPI issued2015 · 74% of these records are older, 23% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2020 · 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).

Psychiatry Physician providers in California

There are 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Anil Assudani, M.D,Redwood City, CA 940631497753909
  2. Gary Bozzini, MDRedwood City, CA 940631871671461
  3. Jason Bromley, MDRedwood City, CA 940631598835142
  4. Sarah Carey, MDRedwood City, CA 940631164509345
  5. Bradford Crowell, MDRedwood City, CA 940631457439077
  6. John Furman, M.D.Redwood City, CA 940631639251697
  7. John Herbert, MDRedwood City, CA 940631396775870
  8. Valerie Herman, MDRedwood City, CA 940631164500724

Common questions

What is Alexander Richard Clarke, M.D.'s NPI number?

Alexander Richard Clarke, M.D.'s National Provider Identifier (NPI) is 1982091062, issued on Apr 16, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Richard Clarke, M.D. located?

The NPPES record lists a practice address at 611 Veterans Blvd # 116, Redwood City, CA, 94063. Phone: (650) 382-2090. Providers update this record themselves, so call before visiting.

How can I verify Alexander Richard Clarke, M.D.'s license?

NPPES lists California license number 143985, 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 Alexander Richard Clarke, M.D. prescribe under Medicare Part D?

In 2024, Alexander Richard Clarke, M.D. had 196 Medicare Part D claims for 14 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.