CITY MEDICAL OF UPPER EAST SIDE, PLLC
NPI 1851823363
Clinic/Center - Urgent Care in Brooklyn, NY

Active since April 03, 2017CLIA 33D2130083 · Waiver
2125 NOSTRAND AVE, BROOKLYN, NY 11210(718) 489-3557(718) 489-3558 Get Directions Write a Review

NPPES record last updated: March 5, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 5, 2025, Sep 11, 2024, Jun 26, 2024 (3 updates tracked since 2024).

About City Medical Of Upper East Side, Pllc NPPES

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

CITY MEDICAL OF UPPER EAST SIDE, PLLC (NPI 1851823363), doing business as Citymd, is a healthcare organization registered as an urgent care in Brooklyn, New York and active in the NPI registry since April 2017. The organization holds a CLIA Waiver certificate valid through March 26, 2027 and lists Swahili Henry, Director Of Payment Solutions, as its authorized official.

NPPES Registry Identity

NPI1851823363
Entity TypeOrganization
Primary Taxonomy261QU0200X
Legal Business NameCITY MEDICAL OF UPPER EAST SIDE, PLLC
Location Address2125 NOSTRAND AVEBrooklyn, NY 11210-3001
Mailing Address1345 Avenue Of The Americas Fl 8New York, NY 10105-0018 · (908) 588-3635
Fax(718) 489-3558
Organization SubpartYes
Authorized OfficialSwahili HenryDirector Of Payment Solutions · (908) 988-0428
Enumeration DateApril 3, 2017
Last NPPES UpdateMarch 5, 20253 updates tracked since enumeration
NPPES CertifiedMarch 5, 2025
✔ NPI 1851823363 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Urgent CareAmbulatory Health Care Facilities
Taxonomy Code261QU0200X
2125 NOSTRAND AVE, Brooklyn, NY 11210

Other Names 1

Doing Business AsCitymd

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

City Medical Of Upper East Side, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

593

Medicare enrollment records show 593 clinicians reassign Medicare billing to City Medical Of Upper East Side, PLLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 176 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 35

Emergency Medicine214
Family Practice170
Internal Medicine59
Diagnostic Radiology20
Nurse Practitioner20
Pathology17
Gastroenterology13
Orthopedic Surgery9
27 other specialties71

Nearest to this location (20)

See all 593
Internal Medicine
NPI 1245692334
2125 NOSTRAND AVE
Brooklyn, NY 11210
(718) 489-3557
✔ PECOS✔ Accepts MedicareSame address
Emergency Medicine
NPI 1184884330
3805 CHURCH AVE
Brooklyn, NY 11203
(718) 287-0616
✔ PECOS✔ Accepts Medicare1.3 mi
Family Practice
NPI 1992072482
874 FLATBUSH AVE
Brooklyn, NY 11226
(718) 571-9372
✔ PECOS✔ Accepts Medicare1.3 mi
Pediatric Medicine
NPI 1144841503
450 CLARKSON AVE
Brooklyn, NY 11203
(718) 270-2078
✔ PECOS✔ Accepts Medicare1.5 mi
Sports Medicine
NPI 1497073274
450 CLARKSON AVE
Brooklyn, NY 11203
(718) 270-2179
✔ PECOS✔ Accepts Medicare1.5 mi
Family Practice
NPI 1962821959
450 CLARKSON AVE BOX 1262
Brooklyn, NY 11203
(718) 270-2560
✔ PECOS✔ Accepts Medicare1.5 mi
Nurse Practitioner
NPI 1366418287
451 CLARKSON AVE T BLG ROOM 606
Brooklyn, NY 11203
(718) 245-4485
✔ PECOS✔ Accepts Medicare1.6 mi
Gastroenterology
NPI 1952559965
451 CLARKSON AVE # 22 T BUILDING 4TH FLOOR
Brooklyn, NY 11203
(718) 245-2027
✔ PECOS✔ Accepts Medicare1.6 mi
Nurse Practitioner
NPI 1609637404
451 CLARKSON AVE
Brooklyn, NY 11203
(718) 245-4620
✔ PECOS✔ Accepts Medicare1.6 mi
Family Practice
NPI 1619305919
1249 NOSTRAND AVE
Brooklyn, NY 11225
(718) 765-6008
✔ PECOS✔ Accepts Medicare1.6 mi
Internal Medicine
NPI 1073994711
2183A RALPH AVE
Brooklyn, NY 11234
(717) 716-7107
✔ PECOS1.7 mi
Emergency Medicine
NPI 1528300654
248 E 48TH ST
Brooklyn, NY 11203
(646) 472-6079
✔ PECOS✔ Accepts Medicare1.7 mi
Nephrology
NPI 1295147734
BROOKDALE PLAZA ONE
Brooklyn, NY 11212
(718) 240-6205
✔ PECOS✔ Accepts Medicare2.4 mi
Emergency Medicine
NPI 1053841239
1 BROOKDALE PLZ
Brooklyn, NY 11212
(718) 240-5180
✔ PECOS✔ Accepts Medicare2.4 mi
Internal Medicine
NPI 1003038274
2094 PITKIN AVE
Brooklyn, NY 11207
(718) 240-0516
✔ PECOS✔ Accepts Medicare3.8 mi
Nurse Practitioner
NPI 1194345306
150 55 TH ST
Brooklyn, NY 11220
(718) 630-7000
✔ PECOS3.9 mi
Internal Medicine
NPI 1174592661
150 55TH ST
Brooklyn, NY 11220
(718) 630-7185
✔ PECOS✔ Accepts Medicare3.9 mi
Cardiovascular Disease (Cardiology)
NPI 1962609776
447 ATLANTIC AVE
Brooklyn, NY 11217
(718) 858-6300
✔ PECOS✔ Accepts Medicare4.1 mi
Gastroenterology
NPI 1043655921
50 COURT ST
Brooklyn, NY 11201
(646) 568-9234
✔ PECOS✔ Accepts Medicare4.7 mi
Gastroenterology
NPI 1932466026
50 COURT ST STE 1102
Brooklyn, NY 11201
(646) 891-4330
✔ PECOS✔ Accepts Medicare4.7 mi
See all 593 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 33D2130083

City Medical Of Upper East Side PLLC · Brooklyn, NY
Active · expires Mar 26, 2027
CLIA Number33D2130083
Laboratory TypePhysician Office
Certificate Effective DateFebruary 4, 2019
Certificate Expiration DateMarch 26, 2027
Laboratory DirectorDr. Dmitry Volfson
Laboratory Phone(718) 489-3557
Laboratory LocationCity Medical Of Upper East Side PLLC2125 Nostrand Avenue, Brooklyn, NY 11210
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 City Medical Of Upper East Side, PLLC's NPI number?

The NPI number for City Medical Of Upper East Side, PLLC is 1851823363. It was assigned to this organization in the NPPES registry on April 3, 2017. The provider is doing business as CityMD.

Where is City Medical Of Upper East Side, PLLC located?

City Medical Of Upper East Side, PLLC is located at 2125 Nostrand Ave, Brooklyn, NY 11210. The listed phone number is (718) 489-3557.

What is City Medical Of Upper East Side, PLLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Urgent Care, with taxonomy code 261QU0200X.

Is City Medical Of Upper East Side, PLLC enrolled in Medicare?

Yes. City Medical Of Upper East Side, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through City Medical Of Upper East Side, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 593 clinicians in 35 Medicare specialties reassign their Medicare billing to City Medical Of Upper East Side, PLLC. 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 Emergency Medicine (214), Family Practice (170) and Internal Medicine (59). Of these, 1 practice at this address and 176 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does City Medical Of Upper East Side, PLLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 33D2130083) is associated with this NPI, valid through March 26, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for City Medical Of Upper East Side, PLLC was last updated on March 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.