ANDREW DAVID FESNAK MD
NPI 1285924001
Pathology - Clinical Pathology/Laboratory Medicine in Philadelphia, PA
About Andrew David Fesnak Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANDREW DAVID FESNAK MD (NPI 1285924001) is an individual clinical pathology/laboratory medicine provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD450652) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS, is affiliated with Hospital Of Univ Of Pennsylvania, and is a graduate of Rutgers School Of Dental Medicine (2011).
NPPES Registry Identity
Specialties & Licenses
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
Andrew David Fesnak 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 Andrew Fesnak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Philadelphia, PA 19104
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,488 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 5
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hospital Of Univ Of Pennsylvania
Acute Care Hospitals · Philadelphia, PAChester County Hospital
Acute Care Hospitals · West Chester, PAPhysician 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.
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Andrew Fesnak's NPI number?
The NPI number for Andrew Fesnak is 1285924001. It was assigned to this individual provider in the NPPES registry on April 13, 2011.
Where is Andrew Fesnak located?
Andrew Fesnak practices at 3400 Spruce St, Philadelphia, PA 19104. The listed phone number is (215) 662-6494.
What is Andrew Fesnak's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Clinical Pathology/Laboratory Medicine, with taxonomy code 207ZP0105X.
Is Andrew Fesnak enrolled in Medicare?
Yes. Andrew Fesnak 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 Andrew Fesnak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Fesnak reassigns Medicare benefits to University Of Penn-Medical Group (Philadelphia, 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 Andrew Fesnak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Andrew Fesnak affiliated with any hospitals?
According to CMS data, Andrew Fesnak is affiliated with Hospital Of Univ Of Pennsylvania and Chester County Hospital.
When was this NPI record last updated?
The NPPES record for Andrew Fesnak was last updated on September 30, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years 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.
# Andrew David Fesnak, MD · NPI 1285924001
Clinical Pathology/Laboratory Medicine physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since April 13, 2011.
## Identity
- **NPI:** 1285924001 (Entity type: Individual)
- **Enumerated:** April 13, 2011
- **Primary specialty:** Pathology - Clinical Pathology/Laboratory Medicine · taxonomy 207ZP0105X
- **State license:** MD450652 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 3400 SPRUCE ST, Philadelphia, PA 19104-4206
- **Phone:** (215) 662-6494
## 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:** University Of Penn-Medical Group (NPI 1073902169, Philadelphia, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rutgers School Of Dental Medicine, class of 2011
## Record status
- **NPPES last updated:** September 30, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1285924001) · Data from the CMS NPPES public registry.