CATHERINE MELISSA PORTER DO
NPI 1255606521
Surgery in Philadelphia, PA
About Catherine Melissa Porter Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CATHERINE MELISSA PORTER DO (NPI 1255606521) is an individual surgery provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (OS014585) and active in the NPI registry since March 2012. She is enrolled in Medicare PECOS, is affiliated with Hospital Of Univ Of Pennsylvania, and is a graduate of Philadelphia College Of Osteopathic Medicine (2005).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Accepted Insurance
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
Catherine Melissa Porter Do 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 Catherine Porter reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
West Chester, PA 19380
- Reassigned Medicare billing, Pennsylvania enrollment
- 983 clinicians in this Medicare group
Berwyn, PA 19312
- 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 10
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 19380 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WEST CHESTER, PA 19380
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 Catherine Porter's NPI number?
The NPI number for Catherine Porter is 1255606521. It was assigned to this individual provider in the NPPES registry on March 20, 2012. The provider is also known as Catherine Melissa Markle.
Where is Catherine Porter located?
Catherine Porter practices at 915 Old Fern Road Bldng D Ste 503 2nd Fl, Philadelphia, PA 19380. The listed phone number is (610) 423-4556.
What is Catherine Porter's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Catherine Porter enrolled in Medicare?
Yes. Catherine Porter 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 Catherine Porter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Porter reassigns Medicare benefits to 2 organizations: Clinical Care Associates Of The University Of Pennsylvania Health (West Chester, PA) and University Of Penn-Medical Group (Berwyn, 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 Catherine Porter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Catherine Porter accept?
Health plans from Ambetter Health and Ambetter from Buckeye Health Plan list Catherine Porter as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Catherine Porter affiliated with any hospitals?
According to CMS data, Catherine Porter is affiliated with Hospital Of Univ Of Pennsylvania and Chester County Hospital.
When was this NPI record last updated?
The NPPES record for Catherine Porter was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Catherine Melissa Porter, DO · NPI 1255606521
Surgery physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since March 20, 2012.
## Identity
- **NPI:** 1255606521 (Entity type: Individual)
- **Enumerated:** March 20, 2012
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** OS014585 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 915 OLD FERN ROAD, BLDNG D STE 503 2ND FL, Philadelphia, PA 19380-4629
- **Phone:** (610) 423-4556 · **Fax:** (610) 732-6735
## 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): Clinical Care Associates Of The University Of Pennsylvania Health (NPI 1396416251, West Chester, PA); University Of Penn-Medical Group (NPI 1396133559, Berwyn, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Philadelphia College Of Osteopathic Medicine, class of 2005
## Record status
- **NPPES last updated:** July 21, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1255606521) · Data from the CMS NPPES public registry.