NPPES file of Aug 9, 2026

Marie A. Demasi, PAC

Physician Assistant · Oakhurst, CA

Marie A. Demasi, PAC is a physician assistant with a practice address in Oakhurst, California, and NPI 1689833675, issued on Jun 4, 2008. Check the license (California PA.19592, as entered in NPPES) 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689833675
Name
Marie A. Demasi
Credential
PAC
Primary taxonomy
Physician Assistant 363A00000X
License numbers
PA.19592 CA
PA 19592 CA
Self-reported in NPPES; status is on the state search
Practice location
40232 Junction Drive, Oakhurst, CA 93644
Phone
(559) 658-6420
Enumerated
Jun 4, 2008
Record last updated
Oct 28, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(559) 658-6460
Medicaid ID
L618 CA
Medicare enrollment
Enrolled (PECOS I20120412000510); 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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Also registered at 40232 Junction Drive

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

  1. Jeffrey Barigian, MDGeneral Practice Physician1184657231
  2. Philip Morin, FNPNurse Practitioner1518960947

Verify Marie A. Demasi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PA.19592
    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
Find the California license search

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69% fewer Medicare Part D claims than the average physician assistant in 2024

258 Medicare Part D claims for 118 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Marie Demasi258
  2. Specialty average830

Most prescribed

  1. Ibuprofen80 claims
  2. Methocarbamol71 claims
  3. Cyclobenzaprine Hcl13 claims
  4. Naproxen12 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.

Industry payments in 2024: $250.00

2 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marie Demasi$250.00
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. First Health Medical Center OF Fresno IncFresno, CA

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

2 physician assistant records list a practice address in Oakhurst

They are 2 of the 161 NPPES records with a practice address in Oakhurst, and 14,451 physician assistant records in California.

Other physician assistant records in California

  1. Marcia -Galbraith, PAStockton, CA1407143274
  2. Danny Abad, PAOrange, CA1477158673
  3. Lea Dominique Abadies, PATustin, CA1124754254
  4. Rea Elizabeth Abaniel, P.A.-CSeal Beach, CA1396173621
  5. Ramina Abbasi, PA-CSignal Hill, CA1093448300
  6. Ariel Abbott, PA-CStockton, CA1780334342
  7. Barrie Abbott, PA-CAnza, CA1861602575
  8. Elizabeth Abbott, PA-CSan Diego, CA1437540762
  9. Terri Abbott, P.A.La Jolla, CA1811165566
  10. Angela Abboud, MMS, PA-CSanta Rosa, CA1114399334

Common questions

What is Marie A. Demasi, PAC's NPI number?

Marie A. Demasi, PAC's National Provider Identifier (NPI) is 1689833675, issued on Jun 4, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Marie A. Demasi, PAC located?

The NPPES record lists a practice address at 40232 Junction Drive, Oakhurst, CA, 93644. Phone: (559) 658-6420. Providers update this record themselves, so call before visiting.

How can I verify Marie A. Demasi, PAC's license?

NPPES lists California license number PA.19592, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Marie A. Demasi, PAC prescribe under Medicare Part D?

In 2024, Marie A. Demasi, PAC had 258 Medicare Part D claims for 118 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.