NPPES file of Aug 9, 2026

Matt Sidener, P.A.

Physician Assistant · Merced, CA

Matt Sidener, P.A. is a physician assistant with a practice address in Merced, California, and NPI 1477644730, issued on Sep 28, 2006. Check the license (California PA15066, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1477644730
Name
Matt Sidener
Credential
P.A.
Primary taxonomy
Physician Assistant 363A00000X
License number
PA15066 CA
Self-reported in NPPES; status is on the state search
Practice location
123 W North Bear Creek Dr, Merced, CA 95348
Phone
(209) 722-8161
Enumerated
Sep 28, 2006
Record last updated
Sep 11, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(209) 383-9211
Medicare enrollment
Enrolled (PECOS I20070606000472); 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 123 W North Bear Creek Dr

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

  1. Samuel Tacke, M.D.Orthopaedic Surgery Physician1235236993
  2. Mark Via, M.D.Orthopaedic Surgery Physician1568553824

Verify Matt Sidener 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 PA15066
    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

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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67% fewer Medicare Part D claims than the average physician assistant in 2024

275 Medicare Part D claims for 108 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 100 claims were for opioids.

  1. Matt Sidener275
  2. Specialty average830

Most prescribed

  1. Gabapentin46 claims
  2. Tramadol Hcl45 claims
  3. Celecoxib37 claims
  4. Hydrocodone-Acetaminophen33 claims
  5. Duloxetine Hcl31 claims
  6. Ondansetron Odt21 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Epic OrthopedicsRedding, CA
  2. Shasta Orthopedics And Sports Medicine A Medical CorporationRedding, CA

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

Matt Sidener among 14,451 physician assistant records in California

Matt Sidener, 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
  • Graduated1999 · median 2018 among the 7,214 with a school on file
  • Record last updated2020 · 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).

34 physician assistant records list a practice address in Merced

They are 34 of the 2,836 NPPES records with a practice address in Merced, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Nancy Adinolfi, PAMerced, CA 953481083810766
  2. Neil Adrian, PA-CMerced, CA 953481194067728
  3. Vivienne Bruniges, FNPMerced, CA 953481558414771
  4. Steven Bulger, P.A.Merced, CA 953481699884544
  5. Michael Courtney, PA-CMerced, CA 953481396898029
  6. Floresita Hernandez, PA-CMerced, CA 953481770636409
  7. Omran Nattouf, PAMerced, CA 953481609685627
  8. Kevin Bailey, P.A-CModesto, CA 953501891740007

Common questions

What is Matt Sidener, P.A.'s NPI number?

Matt Sidener, P.A.'s National Provider Identifier (NPI) is 1477644730, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Matt Sidener, P.A. located?

The NPPES record lists a practice address at 123 W North Bear Creek Dr, Merced, CA, 95348. Phone: (209) 722-8161. Providers update this record themselves, so call before visiting.

How can I verify Matt Sidener, P.A.'s license?

NPPES lists California license number PA15066, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Matt Sidener, P.A. prescribe under Medicare Part D?

In 2024, Matt Sidener, P.A. had 275 Medicare Part D claims for 108 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Matt Sidener, P.A.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.