Janice Semeyn, D.O.
Family Medicine Physician · Clarion, PA
Janice Semeyn, D.O. is a family medicine physician with a practice address in Clarion, Pennsylvania, and NPI 1669441127, issued on Mar 16, 2006. Check the license (Pennsylvania OS012963, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Janice Semeyn
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OS012963 PA
Self-reported in NPPES; status is on the state search - Practice location
- 121 Doctors LN, Clarion, PA 16214
- Phone
- (814) 226-3470
- Enumerated
- Mar 16, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (814) 226-3479
- Medicare enrollment
- Enrolled (PECOS I20060228000119); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2003
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 7,483 in Pennsylvania → Look up another NPI →
Verify Janice Semeyn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS012963Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.0 times the Medicare Part D claims of the average family medicine physician in 2024
24,965 Medicare Part D claims for 870 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 474 claims were for opioids.
Most prescribed
- Levothyroxine Sodium1,143 claims
- Atorvastatin Calcium1,023 claims
- Omeprazole697 claims
- Amlodipine Besylate671 claims
- Sertraline Hcl620 claims
- Furosemide619 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: $792.17
45 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Butler Medical ProvidersClarion, PA
- Phoenix Rehabilitation And Health Services IncCranberry Township, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Janice Semeyn among 7,483 family medicine physician records in Pennsylvania
Janice Semeyn, D.O. is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 79% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2003 · median 2005 among the 4,529 with a school on file
- Record last updated2007 · 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
45 family medicine physician records list a practice address in Clarion
They are 45 of the 307 NPPES records with a practice address in Clarion, and 7,483 family medicine physician records in Pennsylvania.
All 7,483 in Pennsylvania → Every provider in Clarion → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- John Brooks, D.O.Clarion, PA 162141801890421
- Timothy Brooks, DOClarion, PA 162141558365189
- Arthur Dortort, DOClarion, PA 162141780633636
- Bethann Hamm, D.O.Clarion, PA 162141922002518
- Paul Hamm, D.O.Clarion, PA 162141275537862
- Linda HaynesClarion, PA 162141932250271
- Cynthia Hoffmeier, D.O.Clarion, PA 162141386639391
- Randy Kreider, MDClarion, PA 162141720052905
Common questions
What is Janice Semeyn, D.O.'s NPI number?
Janice Semeyn, D.O.'s National Provider Identifier (NPI) is 1669441127, issued on Mar 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Janice Semeyn, D.O. located?
The NPPES record lists a practice address at 121 Doctors LN, Clarion, PA, 16214. Phone: (814) 226-3470. Providers update this record themselves, so call before visiting.
How can I verify Janice Semeyn, D.O.'s license?
NPPES lists Pennsylvania license number OS012963, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Janice Semeyn, D.O. prescribe under Medicare Part D?
In 2024, Janice Semeyn, D.O. had 24,965 Medicare Part D claims for 870 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.