MARK LEGA MD
NPI 1033170329
Internal Medicine - Critical Care Medicine in Pittsburgh, PA
About Mark Lega Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK LEGA MD (NPI 1033170329) is an individual critical care medicine provider in Pittsburgh, Pennsylvania, licensed in Pennsylvania (MD035879E) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Allegheny General Hospital, and is a graduate of Northwestern University Feinberg Medical School (1983).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
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 Lega 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 Reassignment
Medicare enrollment records show Mark Lega reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Pittsburgh, PA 15202
- 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 2
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Allegheny General Hospital
Acute Care Hospitals · Pittsburgh, PAJefferson Hospital
Acute Care Hospitals · Jefferson Hills, PAAhn Wexford Hospital
Acute Care Hospitals · Wexford, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 15202 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.
Referred Medical Equipment & Supplies CMS DME claims 7
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 Lega's NPI number?
The NPI number for Mark Lega is 1033170329. It was assigned to this individual provider in the NPPES registry on March 28, 2006.
Where is Mark Lega located?
Mark Lega practices at 100 S Jackson Ave 3rd Floor, Pittsburgh, PA 15202. The listed phone number is (412) 322-7202.
What is Mark Lega's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Mark Lega enrolled in Medicare?
Yes. Mark Lega 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 organization bills Medicare for Mark Lega's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Lega reassigns Medicare benefits to Allegheny Clinic (Pittsburgh, PA). The 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 Lega's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mark Lega affiliated with any hospitals?
According to CMS data, Mark Lega is affiliated with Allegheny General Hospital, Jefferson Hospital and Ahn Wexford Hospital.
When was this NPI record last updated?
The NPPES record for Mark Lega was last updated on February 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 Lega, MD · NPI 1033170329
Critical Care Medicine physician in Pittsburgh, Pennsylvania. Individual provider, active in the CMS NPPES registry since March 28, 2006.
## Identity
- **NPI:** 1033170329 (Entity type: Individual)
- **Enumerated:** March 28, 2006
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** MD035879E (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 S JACKSON AVE, 3RD FLOOR, Pittsburgh, PA 15202-3428
- **Phone:** (412) 322-7202 · **Fax:** (412) 322-2144
## 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:** Allegheny Clinic (NPI 1215752548, Pittsburgh, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Northwestern University Feinberg Medical School, class of 1983
## Record status
- **NPPES last updated:** February 24, 2025
- **Other identifiers:** Medicaid 0073749000 (WV); Medicaid 001245471007 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1033170329) · Data from the CMS NPPES public registry.