Registry data as of Aug 27, 2026

Marietta Almazan, M.D.

Psychiatry Physician · Fair Oaks, CA

Marietta Almazan, M.D. is a psychiatry physician with a practice address in Fair Oaks, California, and NPI 1740369727, issued on Nov 2, 2006. Check the license (California A46443, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1740369727
Name
Marietta Almazan
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A46443 CA
Self-reported in NPPES; status is on the state search
Practice location
6600 Mercy CT, Fair Oaks, CA 95628
Phone
(916) 962-0021
Enumerated
Nov 2, 2006
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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Also registered at 6600 Mercy CT

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

  1. Jennifer Choi, D.D.S.General Practice Dentistry1801899893
  2. Alan Golshanara, D.D.S.General Practice Dentistry1336286335
  3. Kelly Guy, D.D.S.General Practice Dentistry1851376677
  4. Julianna Krill, DPTPhysical Therapist1649245051
  5. Xin-Nong Li, MDInternal Medicine Physician1205804036
  6. Allen Priest, MDInternal Medicine Physician1487724704

Verify Marietta Almazan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A46443
    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

98% fewer Medicare Part D claims than the average psychiatry physician in 2024

21 Medicare Part D claims, against an average of 1,010 among the 32,287 providers of this specialty who prescribed in Part D.

  1. Marietta Almazan21
  2. Specialty average1,010

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.

Psychiatry Physician providers in California

There are 7,890 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. Kafia Abbasi, M.D.French Camp, CA1215114897
  5. Michele Abbasi, M.D.Westlake Village, CA1093940330
  6. Zohaib AbbasiMartinez, CA1013392224
  7. Chester Abbott, M.D.Pasadena, CA1053442186
  8. Nancy Abdelmalak, M.D.Elk Grove, CA1912137498
  9. Ezzat Abdelmalek, M.DDana Point, CA1992828826
  10. Ahmed AbdelrazekSacramento, CA1669092128

Common questions

What is Marietta Almazan, M.D.'s NPI number?

Marietta Almazan, M.D.'s National Provider Identifier (NPI) is 1740369727, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marietta Almazan, M.D. located?

The NPPES record lists a practice address at 6600 Mercy CT, Fair Oaks, CA, 95628. Phone: (916) 962-0021. Providers update this record themselves, so call before visiting.

How can I verify Marietta Almazan, M.D.'s license?

NPPES lists California license number A46443, 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 Marietta Almazan, M.D. prescribe under Medicare Part D?

In 2024, Marietta Almazan, M.D. had 21 Medicare Part D claims; the average among psychiatry physician prescribers was 1,010. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.