Mackenzie Grace Shirley, PA-C
Physician Assistant · Somerset, PA
Mackenzie Grace Shirley, PA-C is a physician assistant with a practice address in Somerset, Pennsylvania, and NPI 1568143022, issued on Jul 27, 2023. Check the license (Pennsylvania MA064681, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mackenzie Grace Shirley
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- MA064681 PA
Self-reported in NPPES; status is on the state search - Practice location
- 329 S Pleasant Ave, Somerset, PA 15501
- Phone
- (814) 445-3575
- Enumerated
- Jul 27, 2023
- Record last updated
- Sep 10, 2024
- Medicare enrollment
- Enrolled (PECOS I20230929000151); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 8,020 in Pennsylvania → Look up another NPI →
Also registered at 329 S Pleasant Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Paula Griffith-Isenman, CRNPFamily Nurse Practitioner1245450121
- Kristina Manley, PA-CPhysician Assistant1659680080
Verify Mackenzie Grace Shirley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license MA064681Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average physician assistant in 2024
219 Medicare Part D claims for 124 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone22 claims
- Doxycycline Hyclate15 claims
- Cephalexin14 claims
- Azithromycin12 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
- Somerset Health Services IncSomerset, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mackenzie Grace Shirley among 8,020 physician assistant records in Pennsylvania
Mackenzie Grace Shirley, PA-C is one of 8,020 physician assistant records with a practice address in Pennsylvania. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 78% of them.
- NPI issued2023 · 78% of these records are older, 16% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2022 · median 2018 among the 5,313 with a school on file
- Record last updated2024 · 42% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 physician assistant records list a practice address in Somerset
They are 11 of the 424 NPPES records with a practice address in Somerset, and 8,020 physician assistant records in Pennsylvania.
All 8,020 in Pennsylvania → Every provider in Somerset → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Dana Beech, PACSomerset, PA 155011750408118
- Dustin Bowers, PA-CSomerset, PA 155011730279902
- Amy DaleySomerset, PA 155011205802949
- Emily Hoffman, PA-CSomerset, PA 155011386905040
- Kristina Manley, PA-CSomerset, PA 155011659680080
- Lauren MathiasSomerset, PA 155011467017533
- Eliza ParisSomerset, PA 155011639998651
- Rebekah Phillippi, PA-CSomerset, PA 155011548195605
Common questions
What is Mackenzie Grace Shirley, PA-C's NPI number?
Mackenzie Grace Shirley, PA-C's National Provider Identifier (NPI) is 1568143022, issued on Jul 27, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Mackenzie Grace Shirley, PA-C located?
The NPPES record lists a practice address at 329 S Pleasant Ave, Somerset, PA, 15501. Phone: (814) 445-3575. Providers update this record themselves, so call before visiting.
How can I verify Mackenzie Grace Shirley, PA-C's license?
NPPES lists Pennsylvania license number MA064681, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Mackenzie Grace Shirley, PA-C prescribe under Medicare Part D?
In 2024, Mackenzie Grace Shirley, PA-C had 219 Medicare Part D claims for 124 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.