NPPES file of Aug 9, 2026

Erik Richard Frost, M.D.

Psychiatry Physician · San Francisco, CA

Erik Richard Frost, M.D. is a psychiatry physician with a practice address in San Francisco, California, and NPI 1174804892, issued on Sep 8, 2011. Check the license (California C172393, 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
1174804892
Name
Erik Richard Frost
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
C172393 CA
0101252341 VA
Self-reported in NPPES; status is on the state search
Practice location
156 2ND St, San Francisco, CA 94105
Phone
(415) 360-3348
Enumerated
Sep 8, 2011
Record last updated
Oct 29, 2024
Medicare enrollment
Enrolled (PECOS I20190605001468); accepts Medicare assignment
Medical or professional school
University Of Colorado School Of Medicine, Denver, 2011
Telehealth
Offers telehealth (CMS)
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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Verify Erik Richard Frost in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C172393
    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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82% fewer Medicare Part D claims than the average psychiatry physician in 2024

181 Medicare Part D claims for 24 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Erik Frost181
  2. Specialty average1,000

Most prescribed

  1. Trazodone Hcl33 claims
  2. Escitalopram Oxalate21 claims
  3. Buspirone Hcl16 claims
  4. Bupropion Xl15 claims
  5. Clonidine Hcl14 claims
  6. Duloxetine Hcl14 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. Brightside Health IncArlington, VA

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

763 psychiatry physician records list a practice address in San Francisco

They are 763 of the 38,143 NPPES records with a practice address in San Francisco, and 8,673 psychiatry physician records in California.

Other psychiatry physician records in California

  1. Nancy Aaen, MDNapa, CA1609816669
  2. Criselda Abad-Santos, M.D.Woodland Hills, CA1760461826
  3. Mekabiz Abaian, MDSan Bernardino, CA1891090163
  4. Brenda Abarca, MDTorrance, CA1407485527
  5. Pilar Abascal, M.D.Los Angeles, CA1730528191
  6. Michele Abbasi, M.D.Westlake Village, CA1093940330
  7. Zohaib AbbasiMartinez, CA1013392224
  8. Sandy Abdelkedous, MDFresno, CA1306093109
  9. Nancy Abdelmalak, M.D.Elk Grove, CA1912137498
  10. Ezzat Abdelmalek, M.DDana Point, CA1992828826

Common questions

What is Erik Richard Frost, M.D.'s NPI number?

Erik Richard Frost, M.D.'s National Provider Identifier (NPI) is 1174804892, issued on Sep 8, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Erik Richard Frost, M.D. located?

The NPPES record lists a practice address at 156 2ND St, San Francisco, CA, 94105. Phone: (415) 360-3348. Providers update this record themselves, so call before visiting.

How can I verify Erik Richard Frost, M.D.'s license?

NPPES lists California license number C172393, 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 Erik Richard Frost, M.D. prescribe under Medicare Part D?

In 2024, Erik Richard Frost, M.D. had 181 Medicare Part D claims for 24 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.