DR. ERIC SCOTT GRENIER M.D.
NPI 1649595109
Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery in Fort Belvoir, VA
About Dr. Eric Scott Grenier M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ERIC SCOTT GRENIER M.D. (NPI 1649595109) is an individual adult reconstructive orthopaedic surgery provider in Fort Belvoir, Virginia, licensed in Maryland (D89091) and active in the NPI registry since March 2010. He is enrolled in Medicare PECOS, is affiliated with Holy Cross Hospital, and maintains a secondary practice location in Petersburg.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Dr. Eric Scott Grenier 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 Eric Grenier reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Woodbridge, VA 22192
- Reassigned Medicare billing, Virginia, District of Columbia and Maryland enrollments
- Also billed through NPI 1114677572 (Virginia), NPI 1215058326 (District of Columbia), NPI 1073678637 (District of Columbia), NPI 1366781700 (District of Columbia), NPI 1578638425 (District of Columbia), NPI 1497023188 (District of Columbia), NPI 1285752121 (Maryland), NPI 1942546486 (Maryland), NPI 1457023616 (Maryland)
- 995 clinicians in this Medicare group
Bethesda, MD 20814
- Reassigned Medicare billing, Maryland enrollment
- 4,483 clinicians in this Medicare group
Richmond, VA 23227
- Reassigned Medicare billing, Virginia enrollment
- 581 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.
Holy Cross Hospital
Acute Care Hospitals · Silver Spring, MDOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FORT BELVOIR, VA 22060
FORT BELVOIR, VA 22060
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 Eric Grenier's NPI number?
The NPI number for Eric Grenier is 1649595109. It was assigned to this individual provider in the NPPES registry on March 28, 2010.
Where is Eric Grenier located?
Eric Grenier practices at 9300 Dewitt Loop, Fort Belvoir, VA 22060. The listed phone number is (571) 231-2191.
What is Eric Grenier's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Adult Reconstructive Orthopaedic Surgery, with taxonomy code 207XS0114X.
Is Eric Grenier enrolled in Medicare?
Yes. Eric Grenier 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 Eric Grenier's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eric Grenier reassigns Medicare benefits to 3 organizations: Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Woodbridge, VA), Johns Hopkins University (Bethesda, MD) and Bon Secours Medical Group Richmond Specialty Care LLC (Richmond, VA). 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 Eric Grenier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Eric Grenier affiliated with any hospitals?
According to CMS data, Eric Grenier is affiliated with Holy Cross Hospital.
When was this NPI record last updated?
The NPPES record for Eric Grenier was last updated on February 15, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Eric Scott Grenier, M.D. · NPI 1649595109
Adult Reconstructive Orthopaedic Surgery physician in Fort Belvoir, Virginia. Individual provider, active in the CMS NPPES registry since March 28, 2010.
## Identity
- **NPI:** 1649595109 (Entity type: Individual)
- **Enumerated:** March 28, 2010
- **Primary specialty:** Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery · taxonomy 207XS0114X
- **State license:** D89091 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 9300 DEWITT LOOP, Fort Belvoir, VA 22060-5285
- **Phone:** (571) 231-2191
## 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): Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (NPI 1972275196, Woodbridge, VA); Johns Hopkins University (NPI 1578569240, Bethesda, MD); Bon Secours Medical Group Richmond Specialty Care LLC (NPI 1477112225, Richmond, VA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Uniformed Services Uhs Fe Hebert School Of Med, class of 2010
## Record status
- **NPPES last updated:** February 15, 2024
---
Source: [NPI Profile](https://npiprofile.com/npi/1649595109) · Data from the CMS NPPES public registry.