Stephen Paul Martell, DO
Internal Medicine Physician · Wynnewood, PA
Stephen Paul Martell, DO is an internal medicine physician with a practice address in Wynnewood, Pennsylvania, and NPI 1609398478, issued on Jul 12, 2017. Check the license (Pennsylvania OS020678, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Stephen Paul Martell
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OS020678 PA
Self-reported in NPPES; status is on the state search - Practice location
- 100 E Lancaster Ave, Wynnewood, PA 19096
- Phone
- (484) 476-6421
- Enumerated
- Jul 12, 2017
- Record last updated
- Aug 5, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (484) 476-3149
- Medicare enrollment
- Enrolled (PECOS I20200813001208); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2017
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 100 E Lancaster Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ashley Adams, CRNPWomen's Health Nurse Practitioner1497225635
- Bonnie Adelman, M.S.P.A.Audiologist1568718088
Verify Stephen Paul Martell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS020678Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Main Line HealthcareWynewood, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Paul Martell among 7,300 internal medicine physician records in Pennsylvania
Stephen Paul Martell, DO is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 68% of them.
- NPI issued2017 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2017 · median 2008 among the 4,208 with a school on file
- Record last updated2020 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
150 internal medicine physician records list a practice address in Wynnewood
They are 150 of the 1,246 NPPES records with a practice address in Wynnewood, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Wynnewood → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- M Susan Burke, MDWynnewood, PA 190961083694442
- David Cohen, MDWynnewood, PA 190961215908645
- Donald Corey, MDWynnewood, PA 190961245201706
- Daniel Lazowick, DOWynnewood, PA 190961063483527
- William Miller, M.D.Wynnewood, PA 190961801850060
- James Morris, MDWynnewood, PA 190961912979923
- John Nansteel, MDWynnewood, PA 190961558333583
- Colleen O'Connor, MDWynnewood, PA 190961922087154
Common questions
What is Stephen Paul Martell, DO's NPI number?
Stephen Paul Martell, DO's National Provider Identifier (NPI) is 1609398478, issued on Jul 12, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Paul Martell, DO located?
The NPPES record lists a practice address at 100 E Lancaster Ave, Wynnewood, PA, 19096. Phone: (484) 476-6421. Providers update this record themselves, so call before visiting.
How can I verify Stephen Paul Martell, DO's license?
NPPES lists Pennsylvania license number OS020678, 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.
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.