DR. MICHAEL KEITH MALLOW M.D.
NPI 1023138237
Physical Medicine & Rehabilitation in Philadelphia, PA
About Dr. Michael Keith Mallow M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL KEITH MALLOW M.D. (NPI 1023138237) is an individual physical medicine & rehabilitation provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD436445) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Thomas Jefferson University Hospital, and is a graduate of Rutgers New Jersey Medical School (2004).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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
Dr. Michael Keith Mallow M.d. 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
3Medicare enrollment records show Michael Mallow reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Philadelphia, PA 19107
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,739 clinicians in this Medicare group
Voorhees, NJ 08043
- Reassigned Medicare billing, New Jersey enrollment
- Medicare enrollment name: Jefferson University Physicians Of New Jersey PC
- 186 clinicians in this Medicare group
Pottstown, PA 19464
- Reassigned Medicare billing, Pennsylvania enrollment
- Medicare enrollment name: Performance Spine & Sports Physicians, PC
- 9 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 8
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Thomas Jefferson University Hospital
Acute Care Hospitals · Philadelphia, PAOther Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHILADLEPHIA, PA 19107
PHILADELPHIA, PA 19107
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 Michael Mallow's NPI number?
The NPI number for Michael Mallow is 1023138237. It was assigned to this individual provider in the NPPES registry on March 30, 2007.
Where is Michael Mallow located?
Michael Mallow practices at 25 S. 9th Street 1st Floor, Philadelphia, PA 19107. The listed phone number is (215) 955-1200.
What is Michael Mallow's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is Michael Mallow enrolled in Medicare?
Yes. Michael Mallow 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 Michael Mallow's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Mallow reassigns Medicare benefits to 3 organizations: Jefferson University Physicians (Philadelphia, PA), Jefferson University Physicians Of New Jersey, P.C. (Voorhees, NJ) and Performance Spine And Sports Physicians, PC (Pottstown, 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 Michael Mallow's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Mallow accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan and Oscar Health list Michael Mallow 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 Michael Mallow affiliated with any hospitals?
According to CMS data, Michael Mallow is affiliated with Thomas Jefferson University Hospital.
When was this NPI record last updated?
The NPPES record for Michael Mallow was last updated on September 26, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.