Michael Jay Ryan, M.S.
Psychologist · Vacaville, CA
Michael Jay Ryan, M.S. is a psychologist with a practice address in Vacaville, California, and NPI 1326454828, issued on Jul 3, 2014. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael Jay Ryan
- Credential
- M.S.
- Primary taxonomy
- Psychologist 103T00000X
- Practice location
- 1600 California Drive, Vacaville, CA 95696
- Phone
- (217) 622-0565
- Enumerated
- Jul 3, 2014
- Record last updated
- Jul 3, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20230912000909); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychologist records → All 7,304 in California → Look up another NPI →
Also registered at 1600 California Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Barclay, RPHPharmacist1013280874
- Harald Beck, PH.D.Clinical Psychologist1356623839
- Rebecca Benedict, PSY.D.Clinical Psychologist1548547656
- Andrew Biedlingmaier, MDPsychiatry Physician1346737392
- Nicholas Capozzoli, M.D.Neurology Physician1508133828
- Ann Lynn Chong, L.C.S.W.Clinical Social Worker1649615451
Verify Michael Jay Ryan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Regents OF The University OF CaliforniaSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Jay Ryan among 7,304 psychologist records in California
Michael Jay Ryan, M.S. 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 2014, is newer than 61% of them.
- NPI issued2014 · 61% of these records are older, 36% newer
- In a Medicare fileYes · 6% of these records are
- In the CMS Doctors and Clinicians fileYes · 14% of these records are
- Graduated2015 · median 2005 among the 1,058 with a school on file
- Record last updated2014 · 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).
23 psychologist records list a practice address in Vacaville
They are 23 of the 1,903 NPPES records with a practice address in Vacaville, and 7,304 psychologist records in California.
All 7,304 in California → Every provider in Vacaville → Psychologist nationwide →
The 8 psychologist records with the nearest ZIP codes
- Roserin Jothaprasert, PSY DVacaville, CA 956961811432297
- Ahna MontagueVacaville, CA 956961083856298
- Erica RushVacaville, CA 956961235606286
- Dorann Boulian, PH.D.Vacaville, CA 956951649610627
- Connie Hoglund, PH.D.Woodland, CA 956951437214897
- Amy Kline, PH.D.Woodland, CA 956951043376254
- Cecilia Ochoa, PSY.D.Woodland, CA 956951295894079
- Alison Steffensen, PSYDWoodland, CA 956951689792707
Common questions
What is Michael Jay Ryan, M.S.'s NPI number?
Michael Jay Ryan, M.S.'s National Provider Identifier (NPI) is 1326454828, issued on Jul 3, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Michael Jay Ryan, M.S. located?
The NPPES record lists a practice address at 1600 California Drive, Vacaville, CA, 95696. Phone: (217) 622-0565. Providers update this record themselves, so call before visiting.
How can I verify Michael Jay Ryan, M.S.'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.
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.