Joseph L. Leonard, D.O.
Family Medicine Physician · Parker, PA
Joseph L. Leonard, D.O. is a family medicine physician with a practice address in Parker, Pennsylvania, and NPI 1336462209, issued on Mar 8, 2010. Check the license (Pennsylvania OS016241, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Joseph L. Leonard
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- OS016241 PA
OT013319 PA
Self-reported in NPPES; status is on the state search - Practice location
- 855 Route 58, Parker, PA 16049
- Phone
- (724) 659-5601
- Enumerated
- Mar 8, 2010
- Record last updated
- Jan 2, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (724) 659-3544
- Medicare enrollment
- Enrolled (PECOS I20121207000417); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2009
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 7,483 in Pennsylvania → Look up another NPI →
Also registered at 855 Route 58
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lauren Carrier, PA-CPhysician Assistant1316247372
- Katherine Koczan, D.O.Family Medicine Physician1639358989
- Holly Rearick, PA-CPhysician Assistant1992771620
- Karla Wilson, PA-CPhysician Assistant1548645229
Verify Joseph L. Leonard in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS016241Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.1 times the Medicare Part D claims of the average family medicine physician in 2024
14,401 Medicare Part D claims for 749 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 661 claims were for opioids.
Most prescribed
- Omeprazole616 claims
- Atorvastatin Calcium590 claims
- Levothyroxine Sodium545 claims
- Lisinopril468 claims
- Amlodipine Besylate467 claims
- Simvastatin398 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: $85.08
4 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer 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 one group practice
- Butler Medical ProvidersClarion, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph L. Leonard among 7,483 family medicine physician records in Pennsylvania
Joseph L. Leonard, 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 2010, is newer than 60% of them.
- NPI issued2010 · 60% of these records are older, 38% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2009 · median 2005 among the 4,529 with a school on file
- Record last updated2014 · 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).
Family Medicine Physician providers in Pennsylvania
There are 7,483 family medicine physician records in Pennsylvania.
All 7,483 in Pennsylvania → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Katherine Koczan, D.O.Parker, PA 160491639358989
- Edward Balestrino, DOPetrolia, PA 160501134102627
- Amanda Adams, MDSeven Fields, PA 160461457347064
- Molly Dimatteo, D.O.Mars, PA 160461821351925
- Alecia Hutsler, D.O.Mars, PA 160461730409129
- Magdalena Liebe, MDMars, PA 160461588622427
- Richard Rivett, D.O.Mars, PA 160461396164026
- Kathryn Szabo, M.D.Seven Fields, PA 160461316233281
Common questions
What is Joseph L. Leonard, D.O.'s NPI number?
Joseph L. Leonard, D.O.'s National Provider Identifier (NPI) is 1336462209, issued on Mar 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Joseph L. Leonard, D.O. located?
The NPPES record lists a practice address at 855 Route 58, Parker, PA, 16049. Phone: (724) 659-5601. Providers update this record themselves, so call before visiting.
How can I verify Joseph L. Leonard, D.O.'s license?
NPPES lists Pennsylvania license number OS016241, 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 Joseph L. Leonard, D.O. prescribe under Medicare Part D?
In 2024, Joseph L. Leonard, D.O. had 14,401 Medicare Part D claims for 749 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.