NPPES file of Aug 9, 2026

Marisa Ann Olsommer, PA-C

Medical Physician Assistant · Bartonsville, PA

Marisa Ann Olsommer, PA-C is a medical physician assistant with a practice address in Bartonsville, Pennsylvania, and NPI 1285813931, issued on Oct 30, 2007. Check the license (Pennsylvania MA053255, as entered in NPPES) with the Pennsylvania 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
1285813931
Name
Marisa Ann Olsommer
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
MA053255 PA
Self-reported in NPPES; status is on the state search
Practice location
3565 Route 611 Ste 300, Bartonsville, PA 18321
Phone
(484) 526-6545
Enumerated
Oct 30, 2007
Record last updated
Sep 18, 2025
Fax
(272) 212-0110
Medicare enrollment
Enrolled (PECOS I20190110001524); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 3565 Route 611 Ste 300

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

  1. Faith BurnsPhysician Assistant1063880961
  2. Charles Cohan, DO FACPGastroenterology Physician1043289903
  3. Daniel Fegely, DOSurgery Physician1952780173
  4. Jessica Fenner, PA-CPhysician Assistant1003144882
  5. Thomas Hart, MDSurgery Physician1356964944
  6. Nicole Koch, CRNPNurse Practitioner1265940969

Verify Marisa Ann Olsommer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license MA053255
    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 Pennsylvania 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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2.1 times the Medicare Part D claims of the average medical physician assistant in 2024

2,389 Medicare Part D claims for 567 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Marisa Olsommer2,389
  2. Specialty average1,148

Most prescribed

  1. Pantoprazole Sodium547 claims
  2. Omeprazole278 claims
  3. Famotidine272 claims
  4. Dicyclomine Hcl181 claims
  5. Esomeprazole Magnesium114 claims
  6. Metoclopramide Hcl99 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.

The MIPS final score for 2023 (Medicare payment program): 95.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score80.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through one group practice

  1. St Lukes Physician Group IncBartonsville, PA

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

Marisa Ann Olsommer among 3,897 medical physician assistant records in Pennsylvania

Marisa Ann Olsommer, PA-C is one of 3,897 medical 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 2007, is newer than 19% of them.

  • NPI issued2007 · 19% of these records are older, 74% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2007 · median 2015 among the 2,467 with a school on file
  • Record last updated2025 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 medical physician assistant records list a practice address in Bartonsville

They are 2 of the 40 NPPES records with a practice address in Bartonsville, and 3,897 medical physician assistant records in Pennsylvania.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Candy Shirey, PA-CBartonsville, PA 183211255226676
  2. Stephen Cahoon, PA-CMilford, PA 183371528037090
  3. Clare Elliott, P.A.Milford, PA 183371225166655
  4. Abby Andrews, PA-CEast Stroudsburg, PA 183011578431367
  5. Angelina Augugliaro, PA-CEast Stroudsburg, PA 183011285424291
  6. Jordan Bett, PA-CEast Stroudsburg, PA 183011982414116
  7. Laura Bogert, PA-CEast Stroudsburg, PA 183011962280594
  8. Shaun Craig, PA-CEast Stroudsburg, PA 183011811439821

Common questions

What is Marisa Ann Olsommer, PA-C's NPI number?

Marisa Ann Olsommer, PA-C's National Provider Identifier (NPI) is 1285813931, issued on Oct 30, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Marisa Ann Olsommer, PA-C located?

The NPPES record lists a practice address at 3565 Route 611 Ste 300, Bartonsville, PA, 18321. Phone: (484) 526-6545. Providers update this record themselves, so call before visiting.

How can I verify Marisa Ann Olsommer, PA-C's license?

NPPES lists Pennsylvania license number MA053255, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Marisa Ann Olsommer, PA-C prescribe under Medicare Part D?

In 2024, Marisa Ann Olsommer, PA-C had 2,389 Medicare Part D claims for 567 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.

What is Marisa Ann Olsommer, PA-C's MIPS final score?

The 2023 MIPS final score is 95.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.