1. Home
  2. Directory
  3. Massachusetts
  4. Northampton
  5. Clinic Center
  6. NPI Profile

ON CALL URGENT CARE, LLC
NPI 1447495494
Clinic/Center - Urgent Care in Northampton, MA

Active since December 04, 2008
51 LOCUST ST, NORTHAMPTON, MA 01060(413) 584-7425(413) 584-7440 Get Directions Write a Review

NPPES record last updated: September 5, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About On Call Urgent Care, Llc NPPES

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

ON CALL URGENT CARE, LLC (NPI 1447495494) is a healthcare organization registered as an urgent care in Northampton, Massachusetts and active in the NPI registry since December 2008. The organization lists Louis J Durkin, Managing Member, as its authorized official.

NPPES Registry Identity

NPI1447495494
Entity TypeOrganization
Primary Taxonomy261QU0200X
Legal Business NameON CALL URGENT CARE, LLC
Location Address51 LOCUST STNorthampton, MA 01060-2545
Mailing Address4 Open Square Way, Suite 416Holyoke, MA 01040-6295 · (413) 437-7464 · Fax (437) 437-7456
Phone(413) 584-7425
Fax(413) 584-7440
Organization SubpartNo
Authorized OfficialLouis J DurkinManaging Member · (413) 748-9151
Enumeration DateDecember 4, 2008
Last NPPES UpdateSeptember 5, 2023
NPPES CertifiedSeptember 5, 2023
✔ NPI 1447495494 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Urgent CareAmbulatory Health Care Facilities
Taxonomy Code261QU0200X
51 LOCUST ST, Northampton, MA 01060
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

On Call Urgent Care, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

12

Medicare enrollment records show 12 clinicians reassign Medicare billing to On Call Urgent Care, LLC, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 4

Emergency Medicine9
Internal Medicine1
Nurse Practitioner1
Osteopathic Manipulative Medicine1

Clinicians, nearest first (12)

James Most, MD
Internal Medicine
NPI 1518982933
30 LOCUST ST
Northampton, MA 01060
(413) 582-2792
✔ PECOS✔ Accepts Medicare0.1 mi
Agnieszka Nicora, MD
Emergency Medicine
NPI 1003080151
3400 MAIN ST STE A
Springfield, MA 01107
(413) 794-9560
✔ PECOS✔ Accepts Medicare15 mi
Marie Boutin, NP
Nurse Practitioner
NPI 1043572472
759 CHESTNUT ST
Springfield, MA 01199
(413) 794-3233
✔ PECOS✔ Accepts Medicare15 mi
Tyler Christensen, D.O.
Osteopathic Manipulative Medicine
NPI 1811254360
759 CHESTNUT ST
Springfield, MA 01199
(413) 794-3233
✔ PECOS✔ Accepts Medicare15 mi
Louis Durkin, M.D.
Emergency Medicine
NPI 1699784025
271 CAREW ST
Springfield, MA 01104
(413) 748-9137
✔ PECOS✔ Accepts Medicare15 mi
Thomas Egan, M.D.
Emergency Medicine
NPI 1225197569
271 CAREW ST
Springfield, MA 01104
(413) 748-9137
✔ PECOS15 mi
Mark Kenton, DO
Emergency Medicine
NPI 1134162787
271 CAREW ST
Springfield, MA 01104
(413) 748-9137
✔ PECOS15 mi
Gary Montano, M.D.
Emergency Medicine
NPI 1104874155
271 CAREW ST
Springfield, MA 01104
(413) 748-9137
✔ PECOS15 mi
Kevin Neenan, D.O.
Emergency Medicine
NPI 1275630881
271 CAREW ST MERCY MEDICAL CENTER
Springfield, MA 01104
(413) 748-9670
✔ PECOS15 mi
Michael Noonan, M.D.
Emergency Medicine
NPI 1588764542
271 CAREW ST
Springfield, MA 01104
(413) 748-9137
✔ PECOS15 mi
James Carroll, M.D.
Emergency Medicine
NPI 1962439695
271 CAREW ST
Springfield, MA 01104
(413) 748-9137
✔ PECOS✔ Accepts Medicare15 mi
Pamela Guggina, M.D.
Emergency Medicine
NPI 1528006848
10 GOVE ST
East Boston, MA 02128
(617) 569-5800
✔ PECOS✔ Accepts Medicare83 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 On Call Urgent Care, LLC's NPI number?

The NPI number for On Call Urgent Care, LLC is 1447495494. It was assigned to this organization in the NPPES registry on December 4, 2008.

Where is On Call Urgent Care, LLC located?

On Call Urgent Care, LLC is located at 51 Locust St, Northampton, MA 01060. The listed phone number is (413) 584-7425.

What is On Call Urgent Care, LLC's specialty?

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

Is On Call Urgent Care, LLC enrolled in Medicare?

Yes. On Call Urgent Care, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through On Call Urgent Care, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 12 clinicians in 4 Medicare specialties reassign their Medicare billing to On Call Urgent Care, 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 Emergency Medicine (9), Internal Medicine (1) and Nurse Practitioner (1). Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for On Call Urgent Care, LLC was last updated on September 5, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.