NPPES file of Aug 9, 2026

Maria S. Jamiolkowski, DO

Family Medicine Physician · Zanesville, OH

Maria S. Jamiolkowski, DO is a family medicine physician with a practice address in Zanesville, Ohio, and NPI 1154316909, issued on Sep 19, 2005. Check the license (Ohio 34007115J, as entered in NPPES) on the State Medical Board of Ohio; 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
1154316909
Name
Maria S. Jamiolkowski
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
34007115J OH
Self-reported in NPPES; status is on the state search
Practice location
945 Bethesda Dr, Zanesville, OH 43701
Phone
(740) 450-4271
Enumerated
Sep 19, 2005
Record last updated
May 23, 2024
Fax
(740) 450-4286
Medicaid ID
2127200 OH
Medicare enrollment
Enrolled (PECOS I20040428000369); accepts Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 1996
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 945 Bethesda Dr

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

  1. Robert Aepli, M.D.Obstetrics & Gynecology Physician1942286513
  2. Andrea Arnold, PHARM DPharmacist1346501269
  3. Deann BackusPharmacist1346432143
  4. Barbara Cornali, CFNPFamily Nurse Practitioner1013010891
  5. Jeffrey Downing, M.D.Obstetrics & Gynecology Physician1982704243
  6. Linda Eichel, R.PH.Pharmacist1518928688

Verify Maria S. Jamiolkowski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of Ohio
    Search for license 34007115J
    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
Open the Ohio 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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2.4 times the Medicare Part D claims of the average family medicine physician in 2024

8,628 Medicare Part D claims for 441 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 138 claims were for opioids.

  1. Maria Jamiolkowski8,628
  2. Specialty average3,544

Most prescribed

  1. Levothyroxine Sodium407 claims
  2. Amlodipine Besylate384 claims
  3. Atorvastatin Calcium367 claims
  4. Losartan Potassium344 claims
  5. Lisinopril298 claims
  6. Omeprazole286 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

  1. Physicians Group OF Southeastern Ohio IncZanesville, OH

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

Maria S. Jamiolkowski among 5,606 family medicine physician records in Ohio

Maria S. Jamiolkowski, DO is one of 5,606 family medicine physician records with a practice address in Ohio. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 82% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1996 · median 2005 among the 3,510 with a school on file
  • Record last updated2024 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

27 family medicine physician records list a practice address in Zanesville

They are 27 of the 1,664 NPPES records with a practice address in Zanesville, and 5,606 family medicine physician records in Ohio.

The 8 family medicine physician records with the nearest ZIP codes

  1. Bradley Colman, DOZanesville, OH 437011972593176
  2. Shelly Dunmyer, M.D.Zanesville, OH 437011053392555
  3. Thomas ForrestalZanesville, OH 437011487644696
  4. Ronald Harvey, M.D.Zanesville, OH 437011891772240
  5. James Johnston, D.O.Zanesville, OH 437011922095264
  6. Ronald Kalchik, DOZanesville, OH 437011043200249
  7. Gregory Kelso, M.D.Zanesville, OH 437011306821178
  8. Douglas Myers, M.D.Zanesville, OH 437011134105729

Common questions

What is Maria S. Jamiolkowski, DO's NPI number?

Maria S. Jamiolkowski, DO's National Provider Identifier (NPI) is 1154316909, issued on Sep 19, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Maria S. Jamiolkowski, DO located?

The NPPES record lists a practice address at 945 Bethesda Dr, Zanesville, OH, 43701. Phone: (740) 450-4271. Providers update this record themselves, so call before visiting.

How can I verify Maria S. Jamiolkowski, DO's license?

NPPES lists Ohio license number 34007115J, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Maria S. Jamiolkowski, DO prescribe under Medicare Part D?

In 2024, Maria S. Jamiolkowski, DO had 8,628 Medicare Part D claims for 441 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.