Michael Plessas, P.A.
Physician Assistant · Modesto, CA
Michael Plessas, P.A. is a physician assistant with a practice address in Modesto, California, and NPI 1407919699, issued on Dec 18, 2006. Check the license (California PA14097, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael Plessas
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA14097 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1441 Florida Ave, Modesto, CA 95350
- Phone
- (209) 576-3971
- Enumerated
- Dec 18, 2006
- Record last updated
- Jan 25, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040413000906); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 1441 Florida Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sheena Allen, PAMedical Physician Assistant1134473564
- Angel Arellano, PA-CPhysician Assistant1114864634
Verify Michael Plessas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA14097Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average physician assistant in 2024
149 Medicare Part D claims for 104 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Azithromycin17 claims
- Naproxen16 claims
- Levofloxacin13 claims
- Cephalexin12 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
- Eastern Plumas Health Care DistrictPortola, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Plessas among 14,451 physician assistant records in California
Michael Plessas, P.A. is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1996 · median 2018 among the 7,214 with a school on file
- Record last updated2012 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
122 physician assistant records list a practice address in Modesto
They are 122 of the 9,262 NPPES records with a practice address in Modesto, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Modesto → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kevin Bailey, P.A-CModesto, CA 953501891740007
- Shannon Gillespie, P.A-CModesto, CA 953501063459683
- Leslie Halseth, PAModesto, CA 953501760445589
- Nancy Howard, P.A-CModesto, CA 953501649225871
- Mark Jacobs, PAModesto, CA 953501346359866
- Jason James, P.A-CModesto, CA 953501114972478
- Richard Kelley, PA-CModesto, CA 953501558316786
- Rosemarie Kelley, PA-CModesto, CA 953501407942097
Common questions
What is Michael Plessas, P.A.'s NPI number?
Michael Plessas, P.A.'s National Provider Identifier (NPI) is 1407919699, issued on Dec 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Plessas, P.A. located?
The NPPES record lists a practice address at 1441 Florida Ave, Modesto, CA, 95350. Phone: (209) 576-3971. Providers update this record themselves, so call before visiting.
How can I verify Michael Plessas, P.A.'s license?
NPPES lists California license number PA14097, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Michael Plessas, P.A. prescribe under Medicare Part D?
In 2024, Michael Plessas, P.A. had 149 Medicare Part D claims for 104 beneficiaries; the average among physician assistant prescribers was 830. 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.