DR. GILDA-RAE GRELL MD
NPI 1467087650
Internal Medicine - Nephrology in Washington, DC
About Dr. Gilda-rae Grell Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GILDA-RAE GRELL MD (NPI 1467087650) is an individual nephrology provider in Washington, District Of Columbia, licensed in District Of Columbia (MD600003902) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, is affiliated with Holy Cross Hospital, and maintains a secondary practice location in Silver Spring.
NPPES Registry Identity
Specialties & Licenses 3
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
Dr. Gilda-rae Grell Md 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 Gilda-rae Grell reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- 13 clinicians in this Medicare group
Brooklyn, NY 11212
- Reassigned Medicare billing, New York enrollment
- 782 clinicians in this Medicare group
Brooklyn, NY 11213
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Interfaith Professional Physician Services PC
- 635 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
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Holy Cross Hospital
Acute Care Hospitals · Silver Spring, MDAdventist Healthcare White Oak Medical Center
Acute Care Hospitals · Silver Spring, MDLuminis Health Doctors Community Medical Ctr, Inc
Acute Care Hospitals · Lanham, MDMedstar Southern Maryland Hospital Center
Acute Care Hospitals · Clinton, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20010 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.
WASHINGTON, DC 20010
WASHINGTON, DC 20010
WASHINGTON, DC 20010
WASHINGTON, DC 20010
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 Gilda-rae Grell's NPI number?
The NPI number for Gilda-rae Grell is 1467087650. It was assigned to this individual provider in the NPPES registry on March 8, 2020.
Where is Gilda-rae Grell located?
Gilda-rae Grell practices at 106 Irving St NW Ste 422 Pob South Tower, Washington, DC 20010. The listed phone number is (202) 877-0698.
What is Gilda-rae Grell's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Gilda-rae Grell enrolled in Medicare?
Yes. Gilda-rae Grell 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 Gilda-rae Grell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gilda-rae Grell reassigns Medicare benefits to 3 organizations: Capital Area Renal Associates, PC (Washington, DC), Brookdale Hospital Medical Center (Brooklyn, NY) and Interfaith Professional Physician Services, P.C. (Brooklyn, NY). 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 Gilda-rae Grell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Gilda-rae Grell affiliated with any hospitals?
According to CMS data, Gilda-rae Grell is affiliated with Holy Cross Hospital, Adventist Healthcare White Oak Medical Center, Luminis Health Doctors Community Medical Ctr, Inc and Medstar Southern Maryland Hospital Center.
When was this NPI record last updated?
The NPPES record for Gilda-rae Grell was last updated on June 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Gilda-Rae Grell, MD · NPI 1467087650
Nephrology physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since March 8, 2020.
## Identity
- **NPI:** 1467087650 (Entity type: Individual)
- **Enumerated:** March 8, 2020
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** MD600003902 (District of Columbia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 106 IRVING ST NW, STE 422 POB SOUTH TOWER, Washington, DC 20010-2927
- **Phone:** (202) 877-0698 · **Fax:** (202) 877-6959
## 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): Capital Area Renal Associates, PC (NPI 1871641365, Washington, DC); Brookdale Hospital Medical Center (NPI 1720028772, Brooklyn, NY); Interfaith Professional Physician Services, P.C. (NPI 1457643991, Brooklyn, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** June 5, 2026
- **Other identifiers:** Other 390200000X (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1467087650) · Data from the CMS NPPES public registry.