MICHAEL M MILLENSON M.D.
NPI 1871514224
Internal Medicine - Medical Oncology in Philadelphia, PA
About Michael M Millenson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL M MILLENSON M.D. (NPI 1871514224) is an individual medical oncology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD034861E) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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 (PECOS)
Michael M Millenson M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Michael Millenson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Philadelphia, PA 19111
- Reassigned Medicare billing, Pennsylvania enrollment
- 447 clinicians in this Medicare group
Abington, PA 19001
- Reassigned Medicare billing, Pennsylvania enrollment
- 34 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19111 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 19111
PHILADELPHIA, PA 19111
PHILADELPHIA, PA 19111
PHILADELPHIA, PA 19111
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 Millenson's NPI number?
The NPI number for Michael Millenson is 1871514224. It was assigned to this individual provider in the NPPES registry on July 21, 2006.
Where is Michael Millenson located?
Michael Millenson practices at 333 Cottman Ave Fox Chase Cancer Center, Philadelphia, PA 19111. The listed phone number is (215) 728-6900.
What is Michael Millenson's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Michael Millenson enrolled in Medicare?
Yes. Michael Millenson is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Michael Millenson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Millenson reassigns Medicare benefits to 2 organizations: Temple Physicians Inc (Philadelphia, PA) and Abington Memorial Hospital (Abington, 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 Millenson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Millenson accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Michael Millenson 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.
When was this NPI record last updated?
The NPPES record for Michael Millenson was last updated on April 9, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.