GRANT M GREENBERG MD, MA
NPI 1245328772
Family Medicine in Roanoke, VA
About Grant M Greenberg Md, Ma NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRANT M GREENBERG MD, MA (NPI 1245328772) is an individual family medicine provider in Roanoke, Virginia, licensed in Virginia (0101287095) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Carilion Medical Center, and maintains a secondary practice location in Allentown.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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
Grant M Greenberg Md, Ma 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 Grant Greenberg reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Roanoke, VA 24014
- Reassigned Medicare billing, Virginia enrollment
- 1,207 clinicians in this Medicare group
Pottsville, PA 17901
- Reassigned Medicare billing, Pennsylvania enrollment
- 399 clinicians in this Medicare group
Allentown, PA 18104
- Reassigned Medicare billing, Pennsylvania enrollment
- 296 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Carilion Medical Center
Acute Care Hospitals · Roanoke, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 24017 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.
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 Grant Greenberg's NPI number?
The NPI number for Grant Greenberg is 1245328772. It was assigned to this individual provider in the NPPES registry on October 10, 2006.
Where is Grant Greenberg located?
Grant Greenberg practices at 1314 Peters Creek Rd NW, Roanoke, VA 24017. The listed phone number is (540) 562-5700.
What is Grant Greenberg's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Grant Greenberg enrolled in Medicare?
Yes. Grant Greenberg 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 Grant Greenberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Grant Greenberg reassigns Medicare benefits to 3 organizations: Carilion Medical Center (Roanoke, VA), Schuylkill Health System Medical Group, Inc. (Pottsville, PA) and Valley Health Partners Community Health Center (Allentown, 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 Grant Greenberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Grant Greenberg affiliated with any hospitals?
According to CMS data, Grant Greenberg is affiliated with Carilion Medical Center.
When was this NPI record last updated?
The NPPES record for Grant Greenberg was last updated on November 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.
# Grant M Greenberg, MD, MA · NPI 1245328772
Family Medicine physician in Roanoke, Virginia. Individual provider, active in the CMS NPPES registry since October 10, 2006.
## Identity
- **NPI:** 1245328772 (Entity type: Individual)
- **Enumerated:** October 10, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 0101287095 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 1314 PETERS CREEK RD NW, Roanoke, VA 24017-2500
- **Phone:** (540) 562-5700
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Carilion Medical Center (NPI 1114399276, Roanoke, VA); Schuylkill Health System Medical Group, Inc. (NPI 1588603567, Pottsville, PA); Valley Health Partners Community Health Center (NPI 1912532888, Allentown, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Michigan Medical School, class of 1997
## Record status
- **NPPES last updated:** November 6, 2025
- **Other identifiers:** Medicaid 4225724 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1245328772) · Data from the CMS NPPES public registry.