MARK THOMAS UPTON MD
NPI 1366733008
Internal Medicine in Philadelphia, PA
About Mark Thomas Upton Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK THOMAS UPTON MD (NPI 1366733008) is an individual internal medicine provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD449578) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS and is a graduate of University Of Toledo College Of Medicine (2011).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mark Thomas Upton Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mark Upton's NPI number?
The NPI number for Mark Upton is 1366733008. It was assigned to this individual provider in the NPPES registry on April 28, 2011.
Where is Mark Upton located?
Mark Upton practices at 3900 Woodland Ave, Philadelphia, PA 19104. The listed phone number is (215) 823-5800.
What is Mark Upton's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Mark Upton enrolled in Medicare?
Yes. Mark Upton is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
When was this NPI record last updated?
The NPPES record for Mark Upton was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mark Thomas Upton, MD · NPI 1366733008
Internal Medicine physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since April 28, 2011.
## Identity
- **NPI:** 1366733008 (Entity type: Individual)
- **Enumerated:** April 28, 2011
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD449578 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 3900 WOODLAND AVE, Philadelphia, PA 19104-4551
- **Phone:** (215) 823-5800
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** University Of Toledo College Of Medicine, class of 2011
## Record status
- **NPPES last updated:** July 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1366733008) · Data from the CMS NPPES public registry.