CITY MEDICAL OF UPPER EAST SIDE, PLLC
NPI 1548637937
Clinic/Center - Urgent Care in New York, NY

Active since September 01, 2015CLIA 33D2102983 · Waiver
345 W 42ND ST, NEW YORK, NY 10036(516) 783-4600 Get Directions Write a Review

NPPES record last updated: March 3, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 3, 2025, Sep 11, 2024, Jun 25, 2024 and 1 more (4 updates tracked since 2018).

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 1548637937), doing business as Citymd Urgent Care, is a healthcare organization registered as an urgent care in New York, New York and active in the NPI registry since September 2015. 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

NPI1548637937
Entity TypeOrganization
Primary Taxonomy261QU0200X
Legal Business NameCITY MEDICAL OF UPPER EAST SIDE, PLLC
Location Address345 W 42ND STNew York, NY 10036-6982
Mailing Address1345 Avenue Of The Americas Fl 8New York, NY 10105-0018 · (908) 588-3635
Organization SubpartYes
Authorized OfficialSwahili HenryDirector Of Payment Solutions · (908) 988-0428
Enumeration DateSeptember 1, 2015
Last NPPES UpdateMarch 3, 20254 updates tracked since enumeration
NPPES CertifiedMarch 3, 2025
✔ NPI 1548637937 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Urgent CareAmbulatory Health Care Facilities
Taxonomy Code261QU0200X
345 W 42ND ST, New York, NY 10036

Other Names 1

Doing Business AsCitymd Urgent Care

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, 2 practice at this address and 214 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
Family Practice
NPI 1790877827
345 W 42ND ST
New York, NY 10036
(646) 518-0159
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1902067382
345 W 42ND ST
New York, NY 10036
(646) 518-0159
✔ PECOS✔ Accepts MedicareSame address
Family Practice
NPI 1245559889
305 W 44TH ST
New York, NY 10036
(212) 586-1550
✔ PECOS✔ Accepts Medicare0.1 mi
Family Practice
NPI 1376922369
750 7TH AVE FL 16
New York, NY 10019
(212) 296-5777
✔ PECOS0.5 mi
Nurse Practitioner
NPI 1437455052
1 PENN PLZ STE 725
New York, NY 10119
(914) 513-6642
✔ PECOS✔ Accepts Medicare0.5 mi
Family Practice
NPI 1891180956
5 PENN PLZ
New York, NY 10001
(646) 647-1249
✔ PECOS✔ Accepts Medicare0.6 mi
Emergency Medicine
NPI 1801195474
5 PENN PLZ
New York, NY 10001
(646) 647-1249
✔ PECOS✔ Accepts Medicare0.6 mi
Internal Medicine
NPI 1659532802
535 5TH AVE SUITE 611
New York, NY 10017
(212) 227-3688
✔ PECOS✔ Accepts Medicare0.7 mi
Gastroenterology
NPI 1164666244
535 5TH AVE RM 604
New York, NY 10017
(212) 794-0240
✔ PECOS✔ Accepts Medicare0.7 mi
Emergency Medicine
NPI 1245303379
330 7TH AVE
New York, NY 10001
(646) 647-1263
✔ PECOS✔ Accepts Medicare0.7 mi
Emergency Medicine
NPI 1659830594
330 7TH AVE
New York, NY 10001
(646) 647-1263
✔ PECOS✔ Accepts Medicare0.7 mi
Pathology
NPI 1134149685
1345 AVENUE OF THE AMERICAS
New York, NY 10105
(844) 824-8963
✔ PECOS✔ Accepts Medicare0.8 mi
Family Practice
NPI 1306588017
1345 AVENUE OF THE AMERICAS FL 8
New York, NY 10105
(855) 624-8963
✔ PECOS✔ Accepts Medicare0.8 mi
Family Practice
NPI 1538587860
315 W 57TH ST
New York, NY 10019
(646) 202-3023
✔ PECOS✔ Accepts Medicare0.8 mi
Emergency Medicine
NPI 1427220961
315 W 57TH ST
New York, NY 10019
(212) 315-2330
✔ PECOS✔ Accepts Medicare0.8 mi
Family Practice
NPI 1396708657
315 W 57TH ST
New York, NY 10019
(212) 315-2330
✔ PECOS✔ Accepts Medicare0.8 mi
Emergency Medicine
NPI 1154370799
315 W 57TH ST
New York, NY 10019
(212) 315-2330
✔ PECOS✔ Accepts Medicare0.8 mi
Internal Medicine
NPI 1871099440
1345 6TH AVE
New York, NY 10105
(212) 913-0828
✔ PECOS✔ Accepts Medicare0.8 mi
Diagnostic Radiology
NPI 1013100098
1000 10TH AVE SUITE 4B14
New York, NY 10019
(212) 536-6668
✔ PECOS✔ Accepts Medicare0.9 mi
Otolaryngology
NPI 1629485586
1865 BROADWAY
New York, NY 10023
(646) 462-4100
✔ PECOS✔ Accepts Medicare1.0 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 33D2102983

City Medical Of Upper East Side PLLC · New York, NY
Active · expires Mar 26, 2027
CLIA Number33D2102983
Laboratory TypePhysician Office
Certificate Effective DateMay 14, 2019
Certificate Expiration DateMarch 26, 2027
Laboratory DirectorDr. Dmitry Volfson
Laboratory Phone(646) 518-0160
Laboratory LocationCity Medical Of Upper East Side PLLC345 W 42nd Street, New York, NY 10036
CLIA data matches this NPI record on: Address Name
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 1548637937. It was assigned to this organization in the NPPES registry on September 1, 2015. The provider is doing business as CityMD Urgent Care.

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

City Medical Of Upper East Side, PLLC is located at 345 W 42nd St, New York, NY 10036. The listed phone number is (516) 783-4600.

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, 2 practice at this address and 214 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 33D2102983) 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 3, 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.