Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CHESAPEAKE UROLOGY ASSOCIATES, LLC
NPI 1124843966
Urology in Towson, MD

Active since November 18, 2024CLIA 21D2272459 · Waiver
901 DULANEY VALLEY RD STE 902, TOWSON, MD 21204(410) 757-0422 Get Directions Write a Review

NPPES record last updated: October 19, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 8, 2025, Nov 18, 2024 (2 updates tracked since 2024).

About Chesapeake Urology Associates, Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHESAPEAKE UROLOGY ASSOCIATES, LLC (NPI 1124843966) is a healthcare organization registered as an urology in Towson, Maryland and active in the NPI registry since November 2024. The organization holds a CLIA Waiver certificate valid through November 21, 2026 and lists Sanford Jay Siegel, President, as its authorized official.

NPPES Registry Identity

NPI1124843966
Entity TypeOrganization
Primary Taxonomy208800000X
Legal Business NameCHESAPEAKE UROLOGY ASSOCIATES, LLC
Location Address901 DULANEY VALLEY RD STE 902Towson, MD 21204-2614
Mailing Address10200 Grand Central Ave Ste 220Owings Mills, MD 21117-4366 · (443) 738-2872
Organization SubpartNo
Authorized OfficialSanford Jay SiegelPresident · (410) 581-1600
Enumeration DateNovember 18, 2024
Last NPPES UpdateOctober 19, 20262 updates tracked since enumeration
NPPES CertifiedOctober 19, 2026
✔ NPI 1124843966 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians
Taxonomy Code208800000X
Definition
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
901 DULANEY VALLEY RD STE 902, Towson, MD 21204

Other Identifiers 1

Medicaid276003701MD

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Chesapeake Urology Associates, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

166

Medicare enrollment records show 166 clinicians reassign Medicare billing to Chesapeake Urology Associates, LLC, which bills Medicare for the services they deliver. Of these, 50 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 9

Urology110
Nurse Practitioner30
Radiation Oncology9
Hematology/Oncology5
Pathology5
Diagnostic Radiology2
Interventional Radiology2
Obstetrics/Gynecology2
1 other specialty1

Nearest to this location (20)

See all 166
Urology
NPI 1578547287
7505 OSLER DR STE 506
Towson, MD 21204
(410) 296-0167
✔ PECOS✔ Accepts Medicare1.4 mi
Urology
NPI 1093799710
7505 OSLER DR SUITE 506
Towson, MD 21204
(410) 296-0167
✔ PECOS✔ Accepts Medicare1.4 mi
Hematology/Oncology
NPI 1972037661
6535 N CHARLES ST STE 500
Towson, MD 21204
(410) 825-5454
✔ PECOS✔ Accepts Medicare1.6 mi
Urology
NPI 1699279927
6535 N CHARLES ST STE 500
Towson, MD 21204
(410) 825-5454
✔ PECOS✔ Accepts Medicare1.6 mi
Urology
NPI 1043839467
6535 N CHARLES ST STE 500
Towson, MD 21204
(410) 825-5454
✔ PECOS1.6 mi
Urology
NPI 1346411238
6535 N CHARLES ST STE 500
Towson, MD 21204
(410) 825-5454
✔ PECOS✔ Accepts Medicare1.6 mi
Urology
NPI 1003295353
6535 N CHARLES ST STE 500
Towson, MD 21204
(410) 825-5454
✔ PECOS✔ Accepts Medicare1.6 mi
Urology
NPI 1770046260
6535 N CHARLES ST STE 500
Towson, MD 21204
(410) 825-5454
✔ PECOS✔ Accepts Medicare1.6 mi
Urology
NPI 1740243906
6535 N CHARLES ST SUITE 625
Baltimore, MD 21204
(410) 825-5454
✔ PECOS✔ Accepts Medicare1.6 mi
Nurse Practitioner
NPI 1578243358
6535 N CHARLES ST STE 500
Towson, MD 21204
(410) 825-5454
✔ PECOS✔ Accepts Medicare1.6 mi
Urology
NPI 1497333678
6535 N CHARLES ST STE 500
Towson, MD 21204
(410) 825-5454
✔ PECOS1.6 mi
Nurse Practitioner
NPI 1811885502
6535 N CHARLES ST STE 500
Towson, MD 21204
(410) 825-5454
✔ PECOS✔ Accepts Medicare1.6 mi
Urology
NPI 1124575436
6535 N CHARLES ST STE 500
Towson, MD 21204
(410) 825-5454
✔ PECOS1.6 mi
Urology
NPI 1720035116
6535 N CHARLES ST STE 500
Towson, MD 21204
(410) 825-5454
✔ PECOS✔ Accepts Medicare1.6 mi
Nurse Practitioner
NPI 1689679763
6535 N CHARLES ST STE 500
Towson, MD 21204
(410) 825-5454
✔ PECOS✔ Accepts Medicare1.6 mi
Nurse Practitioner
NPI 1043986490
6535 N CHARLES ST STE 500
Towson, MD 21204
(410) 825-5454
✔ PECOS✔ Accepts Medicare1.6 mi
Radiation Oncology
NPI 1548464001
6701 N CHARLES ST SUITE 1400
Baltimore, MD 21204
(443) 849-2540
✔ PECOS✔ Accepts Medicare1.6 mi
Radiation Oncology
NPI 1548261647
6701 N CHARLES ST
Towson, MD 21204
(443) 849-2540
✔ PECOS✔ Accepts Medicare1.6 mi
Radiation Oncology
NPI 1780905968
6701 N CHARLES ST
Baltimore, MD 21204
(443) 849-2540
✔ PECOS✔ Accepts Medicare1.6 mi
Radiation Oncology
NPI 1265876973
6565 N CHARLES ST STE 203
Baltimore, MD 21204
(443) 849-3760
✔ PECOS✔ Accepts Medicare1.7 mi
See all 166 clinicians

Source: 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

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 of Waiver 21D2272459

Chesapeake Urology Associates LLC · Towson, MD
Active · expires Nov 21, 2026
CLIA Number21D2272459
Laboratory TypePhysician Office
Certificate Effective DateNovember 22, 2024
Certificate Expiration DateNovember 21, 2026
Laboratory DirectorDr. Mohammed A. Razvi
Laboratory Phone(410) 757-0422
Laboratory LocationChesapeake Urology Associates LLC901 Dulaney Valley Rd, Towson, MD 21204
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Chesapeake Urology Associates, LLC's NPI number?

The NPI number for Chesapeake Urology Associates, LLC is 1124843966. It was assigned to this organization in the NPPES registry on November 18, 2024.

Where is Chesapeake Urology Associates, LLC located?

Chesapeake Urology Associates, LLC is located at 901 Dulaney Valley Rd Ste 902, Towson, MD 21204. The listed phone number is (410) 757-0422.

What is Chesapeake Urology Associates, LLC's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Chesapeake Urology Associates, LLC enrolled in Medicare?

Yes. Chesapeake Urology Associates, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Chesapeake Urology Associates, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 166 clinicians in 9 Medicare specialties reassign their Medicare billing to Chesapeake Urology Associates, LLC. 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 Urology (110), Nurse Practitioner (30) and Radiation Oncology (9). Of these, 50 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Chesapeake Urology Associates, LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 21D2272459) is associated with this NPI, valid through November 21, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Chesapeake Urology Associates, LLC was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days 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.