WASHINGTON NEPHROLOGY ASSOCIATES, L.L.P.
NPI 1124193479
Internal Medicine - Nephrology in Rockville, MD
About Washington Nephrology Associates, L.l.p. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WASHINGTON NEPHROLOGY ASSOCIATES, L.L.P. (NPI 1124193479) is a healthcare organization registered as a nephrology in Rockville, Maryland and active in the NPI registry since November 2006. The organization holds 2 active CLIA laboratory certificates and lists Linda Langford, Credentials Coordinator, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 5
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Washington Nephrology Associates, L.l.p. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
46Medicare enrollment records show 46 clinicians reassign Medicare billing to Washington Nephrology Associates, L.L.P., which bills Medicare for the services they deliver. Of these, 3 practice at this address and 10 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 4
Nearest to this location (20)
See all 46Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA 2
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate for Provider-Performed Microscopy Procedures (PPMP) 21D0867446
Washington Nephrology Assoc · Rockville, MDCertificate for Provider-Performed Microscopy Procedures (PPMP) 21D2203048
Washington Nephrology Associates · Germantown, MDFrequently 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 Washington Nephrology Associates, L.L.P.'s NPI number?
The NPI number for Washington Nephrology Associates, L.L.P. is 1124193479. It was assigned to this organization in the NPPES registry on November 22, 2006. The provider is also known as Washington Nephrology Associates.
Where is Washington Nephrology Associates, L.L.P. located?
Washington Nephrology Associates, L.L.P. is located at 1201 Seven Locks Rd Ste 200, Rockville, MD 20854. The listed phone number is (301) 907-4646.
What is Washington Nephrology Associates, L.L.P.'s specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Washington Nephrology Associates, L.L.P. enrolled in Medicare?
Yes. Washington Nephrology Associates, L.L.P. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Washington Nephrology Associates, L.L.P.?
According to the CMS Revalidation Reassignment List (October 2026 release), 46 clinicians in 4 Medicare specialties reassign their Medicare billing to Washington Nephrology Associates, L.L.P.. A 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 the clinician's services. The largest specialties are Nephrology (37), Nurse Practitioner (5) and Diagnostic Radiology (3). Of these, 3 practice at this address and 10 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Washington Nephrology Associates, L.L.P. hold CLIA laboratory certificates?
Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.
When was this NPI record last updated?
The NPPES record for Washington Nephrology Associates, L.L.P. was last updated on June 9, 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.
# Washington Nephrology Associates, L.l.p. · NPI 1124193479
Nephrology organization in Rockville, Maryland. Organization record, active in the CMS NPPES registry since November 22, 2006.
## Identity
- **NPI:** 1124193479 (Entity type: Organization)
- **Enumerated:** November 22, 2006
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **Also known as:** Washington Nephrology Associates (Other Name)
- **Organization subpart:** Yes (part of Washington Nephrology Associates, L.l.p.)
- **Authorized official:** Linda Langford, CREDENTIALS COORDINATOR
## Practice location
- **Address:** 1201 SEVEN LOCKS RD STE 200, Rockville, MD 20854-2960
- **Phone:** (301) 907-4646 · **Fax:** (301) 907-7796
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 46 clinicians in 4 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nephrology (37), Nurse Practitioner (5), Diagnostic Radiology (3); 3 practice at this address and 10 within 10 miles; [full list](https://npiprofile.com/npi/1124193479/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 9, 2026
- **Other identifiers:** Other CA9035; Other CN0881; Other DE5304; and 2 more
- **CLIA laboratory certificates:** 2 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1124193479) · Data from the CMS NPPES public registry.