NPPES file of Aug 9, 2026

Michael A. Sasiain, PSY.D.

Psychologist · Redwood City, CA

Michael A. Sasiain, PSY.D. is a psychologist with a practice address in Redwood City, California, and NPI 1841625837, issued on Sep 9, 2013. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1841625837
Name
Michael A. Sasiain
Credential
PSY.D.
Primary taxonomy
Psychologist 103T00000X
Practice location
1400 Veterans Blvd, Redwood City, CA 94063
Phone
(650) 299-4777
Enumerated
Sep 9, 2013
Record last updated
Jan 11, 2022
Medicare enrollment
Enrolled (PECOS I20210526003039); accepts Medicare assignment
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 psychologist records → All 7,304 in California → Look up another NPI →

Also registered at 1400 Veterans Blvd

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

  1. Chelsey Andrada-Rickard, PT, DPTPhysical Therapist1700740917
  2. Lindsay Arboleda, NPFamily Nurse Practitioner1780005710
  3. Alin AroyanPhysical Therapist1104997766
  4. Kimya BehrouzianPsychologist1255847414
  5. Kylie Billingsley, PH.D.Clinical Psychologist1326232273
  6. Olivia BrasilMental Health Counselor1114232964

Verify Michael A. Sasiain in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
Find 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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Bills Medicare through one group practice

  1. Permanente Medical Group IncRedwood City, CA

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

Michael A. Sasiain among 7,304 psychologist records in California

Michael A. Sasiain, PSY.D. is one of 7,304 psychologist records with a practice address in California. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 57% of them.

  • NPI issued2013 · 57% of these records are older, 39% newer
  • In a Medicare fileYes · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 14% of these records are
  • Graduated2017 · median 2005 among the 1,058 with a school on file
  • Record last updated2022 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

50 psychologist records list a practice address in Redwood City

They are 50 of the 2,795 NPPES records with a practice address in Redwood City, and 7,304 psychologist records in California.

All 7,304 in California → Every provider in Redwood City → Psychologist nationwide →

The 8 psychologist records with the nearest ZIP codes

  1. Linda Cutting, PH.D.Redwood City, CA 940631083776900
  2. Laurel Demain, PH.D.Redwood City, CA 940631831243492
  3. Kathleen Eldredge, PH.D.Redwood City, CA 940631972641140
  4. Farzaneh Eleen, PH.DRedwood City, CA 940631710036694
  5. Lauren Kettmann, PSY.D.Redwood City, CA 940631578701041
  6. Evelyn Marchini, PH.D.Redwood City, CA 940631972529998
  7. Svetlana Medvinsky, PH.D.Redwood City, CA 940631154613875
  8. Leryn Messori, PSYDRedwood City, CA 940631134405590

Common questions

What is Michael A. Sasiain, PSY.D.'s NPI number?

Michael A. Sasiain, PSY.D.'s National Provider Identifier (NPI) is 1841625837, issued on Sep 9, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Michael A. Sasiain, PSY.D. located?

The NPPES record lists a practice address at 1400 Veterans Blvd, Redwood City, CA, 94063. Phone: (650) 299-4777. Providers update this record themselves, so call before visiting.

How can I verify Michael A. Sasiain, PSY.D.'s license?

Search the California board that licenses this profession; the NPPES record confirms identity 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.