CITY MEDICAL OF UPPER EAST SIDE, PLLC
NPI 1790101731
Clinic/Center - Urgent Care in Massapequa, NY

Active since March 14, 2014CLIA 33D2075383 · Waiver
4410 SUNRISE HWY, MASSAPEQUA, NY 11758(212) 913-0828 Get Directions Write a Review

NPPES record last updated: March 3, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 3, 2025, Sep 11, 2024, Jun 26, 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 1790101731), doing business as Citymd Ur, is a healthcare organization registered as an urgent care in Massapequa, New York and active in the NPI registry since March 2014. 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

NPI1790101731
Entity TypeOrganization
Primary Taxonomy261QU0200X
Legal Business NameCITY MEDICAL OF UPPER EAST SIDE, PLLC
Location Address4410 SUNRISE HWYMassapequa, NY 11758-5346
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 DateMarch 14, 2014
Last NPPES UpdateMarch 3, 20254 updates tracked since enumeration
NPPES CertifiedMarch 3, 2025
✔ NPI 1790101731 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Urgent CareAmbulatory Health Care Facilities
Taxonomy Code261QU0200X
4410 SUNRISE HWY, Massapequa, NY 11758

Other Names 1

Doing Business AsCitymd Ur

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 58 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 1780089342
4410 SUNRISE HWY
Massapequa, NY 11758
(516) 998-1024
✔ PECOS✔ Accepts MedicareSame address
Family Practice
NPI 1104119338
3965 SUNSET AVE
Seaford, NY 11783
(516) 987-7336
✔ PECOS✔ Accepts Medicare1.1 mi
Internal Medicine
NPI 1255854279
1136 FORTUNE CT
Wantagh, NY 11793
(646) 329-4139
✔ PECOS✔ Accepts Medicare2.1 mi
Geriatric Medicine
NPI 1225028376
399 COUNTYLINE RD
Amityville, NY 11701
(631) 608-5629
✔ PECOS✔ Accepts Medicare2.5 mi
Cardiovascular Disease (Cardiology)
NPI 1629278833
137 BROADWAY STE A
Amityville, NY 11701
(631) 264-2424
✔ PECOS✔ Accepts Medicare2.9 mi
Emergency Medicine
NPI 1295937126
148 MERRICK RD
Amityville, NY 11701
(631) 841-4102
✔ PECOS✔ Accepts Medicare2.9 mi
General Surgery
NPI 1396832978
2459 MERRICK RD
Bellmore, NY 11710
(516) 826-2273
✔ PECOS✔ Accepts Medicare3.5 mi
Emergency Medicine
NPI 1104814292
2459 MERRICK RD
Bellmore, NY 11710
(516) 783-4600
✔ PECOS✔ Accepts Medicare3.5 mi
Internal Medicine
NPI 1053472746
4295 HEMPSTEAD TPKE
Bethpage, NY 11714
(516) 520-2745
✔ PECOS✔ Accepts Medicare3.5 mi
Family Practice
NPI 1023498292
901 SUNRISE HWY
Copiague, NY 11726
(631) 230-5772
✔ PECOS✔ Accepts Medicare3.5 mi
Qualified Audiologist
NPI 1831790765
1019 OLYMPIA RD FL 1
North Bellmore, NY 11710
(917) 374-9372
✔ Accepts Medicare3.7 mi
Qualified Audiologist
NPI 1487827143
3601 HEMPSTEAD TPKE STE 201
Levittown, NY 11756
(631) 404-0540
✔ Accepts Medicare3.9 mi
Family Practice
NPI 1801960984
2374 JERUSALEM AVE
North Bellmore, NY 11710
(516) 409-8311
✔ PECOS✔ Accepts Medicare4.0 mi
Nurse Practitioner
NPI 1295250157
3276 HEMPSTEAD TPKE
Levittown, NY 11756
(516) 796-2273
✔ PECOS✔ Accepts Medicare4.1 mi
Family Practice
NPI 1366615213
3276 HEMPSTEAD TPKE
Levittown, NY 11756
(516) 796-2273
✔ PECOS✔ Accepts Medicare4.1 mi
Hospitalist
NPI 1578858346
110 BI COUNTY BLVD STE 114
Farmingdale, NY 11735
(631) 828-7417
✔ PECOS✔ Accepts Medicare4.2 mi
Family Practice
NPI 1417307562
1989 MERRICK RD
Merrick, NY 11566
(516) 584-4448
✔ PECOS✔ Accepts Medicare4.4 mi
Emergency Medicine
NPI 1154386852
656 N WELLWOOD AVENUE
Lindenhurst, NY 11757
(631) 225-4227
✔ PECOS✔ Accepts Medicare5.0 mi
Family Practice
NPI 1528057767
656 N.WELLWOOD AVENUE
Lindenhurst, NY 11757
(631) 225-4227
✔ PECOS✔ Accepts Medicare5.0 mi
Emergency Medicine
NPI 1265672646
2201 HEMPSTEAD TPKE
East Meadow, NY 11554
(516) 572-6175
✔ PECOS✔ Accepts Medicare5.5 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 33D2075383

City Medical Of Upper East Side PLLC · Massapequa, NY
Active · expires Mar 26, 2027
CLIA Number33D2075383
Laboratory TypePhysician Office
Certificate Effective DateMay 30, 2019
Certificate Expiration DateMarch 26, 2027
Laboratory DirectorDr. Dmitry M. Volfson
Laboratory Phone(516) 998-1024
Laboratory LocationCity Medical Of Upper East Side PLLC4410 Sunrise Highway, Massapequa, NY 11758
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 1790101731. It was assigned to this organization in the NPPES registry on March 14, 2014. The provider is doing business as CityMD Ur.

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

City Medical Of Upper East Side, PLLC is located at 4410 Sunrise Hwy, Massapequa, NY 11758. The listed phone number is (212) 913-0828.

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 58 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 33D2075383) 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 20 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.