ALLAN MARC GROSSMAN MD
NPI 1659367233
Internal Medicine - Hematology & Oncology in Knoxville, TN
About Allan Marc Grossman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLAN MARC GROSSMAN MD (NPI 1659367233) is an individual hematology & oncology provider in Knoxville, Tennessee, licensed in Tennessee (MD13403) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Allan Marc Grossman Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Allan Grossman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Knoxville, TN 37919
- Reassigned Medicare billing, Tennessee enrollment
- 832 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37916 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.
KNOXVILLE, TN 37916
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 Allan Grossman's NPI number?
The NPI number for Allan Grossman is 1659367233. It was assigned to this individual provider in the NPPES registry on September 20, 2005.
Where is Allan Grossman located?
Allan Grossman practices at 1915 White Ave, Knoxville, TN 37916. The listed phone number is (865) 541-1314.
What is Allan Grossman's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Allan Grossman enrolled in Medicare?
Yes. Allan Grossman is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Allan Grossman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allan Grossman reassigns Medicare benefits to University Health System, Inc (Knoxville, TN). 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 Allan Grossman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Allan Grossman was last updated on June 30, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.