MARK J GELLER MD
NPI 1396709069
Internal Medicine - Cardiovascular Disease in Blawnox, PA
About Mark J Geller Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK J GELLER MD (NPI 1396709069) is an individual cardiovascular disease provider in Blawnox, Pennsylvania, licensed in Pennsylvania (MD029608E) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Upmc St Margaret, and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (1977).
NPPES Registry Identity
Specialties & Licenses 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mark J Geller 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.
Medicare Billing Reassignments
2Medicare enrollment records show Mark Geller reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Blawnox, PA 15238
- Reassigned Medicare billing, Pennsylvania enrollment
Pittsburgh, PA 15238
- Reassigned Medicare billing, Pennsylvania enrollment
- 2,881 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 9
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Upmc St Margaret
Acute Care Hospitals · Pittsburgh, PAMagee Womens Hospital Of Upmc Health System
Acute Care Hospitals · Pittsburgh, PAUpmc Presbyterian Shadyside
Acute Care Hospitals · Pittsburgh, PAJefferson Hospital
Acute Care Hospitals · Jefferson Hills, PAForbes Hospital
Acute Care Hospitals · Monroeville, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 15238 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BLAWNOX, PA 15238
BLAWNOX, PA 15238
BLAWNOX, PA 15238
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 Geller's NPI number?
The NPI number for Mark Geller is 1396709069. It was assigned to this individual provider in the NPPES registry on April 12, 2006.
Where is Mark Geller located?
Mark Geller practices at 121 Freeport Rd Ste 200, Blawnox, PA 15238. The listed phone number is (412) 965-3335.
What is Mark Geller's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Mark Geller enrolled in Medicare?
Yes. Mark Geller 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.
Which organizations bill Medicare for Mark Geller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Geller reassigns Medicare benefits to 2 organizations: Mark J. Geller, MD, LLC (Blawnox, PA) and Allegheny Clinic (Pittsburgh, PA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Geller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mark Geller affiliated with any hospitals?
According to CMS data, Mark Geller is affiliated with Upmc St Margaret, Magee Womens Hospital Of Upmc Health System, Upmc Presbyterian Shadyside, Jefferson Hospital and Forbes Hospital.
When was this NPI record last updated?
The NPPES record for Mark Geller was last updated on November 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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 J Geller, MD · NPI 1396709069
Cardiovascular Disease physician in Blawnox, Pennsylvania. Individual provider, active in the CMS NPPES registry since April 12, 2006.
## Identity
- **NPI:** 1396709069 (Entity type: Individual)
- **Enumerated:** April 12, 2006
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** MD029608E (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 121 FREEPORT RD STE 200, Blawnox, PA 15238-3485
- **Phone:** (412) 965-3335 · **Fax:** (412) 487-1913
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Mark J. Geller, MD, LLC (NPI 1023576436, Blawnox, PA); Allegheny Clinic (NPI 1144719774, Pittsburgh, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Albert Einstein College Of Medicine Of Yeshiva University, class of 1977
## Record status
- **NPPES last updated:** November 19, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1396709069) · Data from the CMS NPPES public registry.