IndividualActive
Mark Sostek, M.D.
NPI 1902881329 · Gastroenterology Physician · Radnor, PA
Provider details
- NPI number
- 1902881329
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD065050L (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
250 King of Prussia Rd
Penn Medicine at Radnor
Radnor, PA 19087-5220
Phone: (610) 902-1544
Street-level locationGet directions
Mailing address
1650 Forest Creek Dr
Blue Bell, PA 19422-3652
Registry dates
- Enumerated
- 2005-12-08
- Last updated
- 2007-07-08
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.