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SLEEP MEDICINE SERVICES OF WESTERN MASSACHUSETTS LLC
NPI 1043655897
Clinic/Center - Sleep Disorder Diagnostic in Springfield, MA

Active since May 07, 2013
3640 MAIN ST., SUITE 208, SPRINGFIELD, MA 01107(413) 253-2767(413) 253-9767 Get Directions Write a Review

NPPES record last updated: July 26, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Sleep Medicine Services Of Western Massachusetts Llc NPPES

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

SLEEP MEDICINE SERVICES OF WESTERN MASSACHUSETTS LLC (NPI 1043655897) is a healthcare organization registered as a sleep disorder diagnostic in Springfield, Massachusetts and active in the NPI registry since May 2013. The organization lists George F Howard, Owner / Physician, as its authorized official.

NPPES Registry Identity

NPI1043655897
Entity TypeOrganization
Primary Taxonomy261QS1200X
Legal Business NameSLEEP MEDICINE SERVICES OF WESTERN MASSACHUSETTS LLC
Location Address3640 MAIN ST., SUITE 208Springfield, MA 01107
Mailing Address3640 Main St Ste 2018Springfield, MA 01107-1145 · (413) 253-2767 · Fax (413) 253-9767
Phone(413) 253-2767
Fax(413) 253-9767
Organization SubpartYes
Authorized OfficialGeorge F HowardOwner / Physician · (413) 253-2767
Enumeration DateMay 7, 2013
Last NPPES UpdateJuly 26, 2019
✔ NPI 1043655897 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyClinic/Center · Sleep Disorder DiagnosticAmbulatory Health Care Facilities
Taxonomy Code261QS1200X
Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X · License 50228 (MA)
Also ListedPsychiatry & Neurology · Sleep MedicineTaxonomy 2084S0012X · License 80036 (MA)
Also ListedPhysician Assistant · MedicalTaxonomy 363AM0700X · License PA00527 (CT)
Also ListedNurse Practitioner · Acute CareTaxonomy 363LA2100X · License 236642 (MA)
3640 MAIN ST., Springfield, MA 01107
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sleep Medicine Services Of Western Massachusetts Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

8

Medicare enrollment records show 8 clinicians reassign Medicare billing to Sleep Medicine Services Of Western Massachusetts LLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 3 within 10 miles. They are listed nearest first.

Clinicians, nearest first (8)

Michelle Sheehan, APRN
Nurse Practitioner
NPI 1053742098
3640 MAIN ST STE 208
Springfield, MA 01107
(413) 253-2767
✔ PECOS✔ Accepts MedicareSame address
Chelsea Daniele, FNP
Nurse Practitioner
NPI 1871108001
3640 MAIN ST STE 208
Springfield, MA 01107
(413) 253-2767
✔ PECOS✔ Accepts MedicareSame address
Donald Blair, MD
Sleep Medicine
NPI 1609894104
3300 MAIN STREET 3RD FL, SUITE C&D
Springfield, MA 01107
(413) 794-5600
✔ PECOS✔ Accepts Medicare0.3 mi
Crystal Williams, FNP-BC
Nurse Practitioner
NPI 1639604754
325B KING ST PIONEER VALLEY FAMILY MEDICINE
Northampton, MA 01060
(413) 387-4100
✔ PECOS✔ Accepts Medicare14 mi
Shelbie Delaney, FNP-BC
Nurse Practitioner
NPI 1255213559
267 LOCUST ST STE 101
Northampton, MA 01062
(413) 253-2767
✔ PECOS✔ Accepts Medicare15 mi
Paul Walting, MD
Neurology
NPI 1275503666
170 UNIVERSITY DR SUITE 201
Amherst, MA 01002
(413) 253-2767
✔ PECOS✔ Accepts Medicare17 mi
Joseph Krainin, MD
Sleep Medicine
NPI 1386792307
171 ASHLEY AVE
Charleston, SC 29425
(843) 792-1414
✔ PECOS759 mi
Navjot Grewal
Sleep Medicine
NPI 1245646231
5201 NORRIS CANYON RD STE 120
San Ramon, CA 94583
(925) 415-5353
✔ PECOS✔ Accepts Medicare2,601 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 Sleep Medicine Services Of Western Massachusetts LLC's NPI number?

The NPI number for Sleep Medicine Services Of Western Massachusetts LLC is 1043655897. It was assigned to this organization in the NPPES registry on May 7, 2013.

Where is Sleep Medicine Services Of Western Massachusetts LLC located?

Sleep Medicine Services Of Western Massachusetts LLC is located at 3640 Main St. Suite 208, Springfield, MA 01107. The listed phone number is (413) 253-2767.

What is Sleep Medicine Services Of Western Massachusetts LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Sleep Disorder Diagnostic, with taxonomy code 261QS1200X.

Is Sleep Medicine Services Of Western Massachusetts LLC enrolled in Medicare?

Yes. Sleep Medicine Services Of Western Massachusetts LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Sleep Medicine Services Of Western Massachusetts LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians in 3 Medicare specialties reassign their Medicare billing to Sleep Medicine Services Of Western Massachusetts 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 Nurse Practitioner (4), Sleep Medicine (3) and Neurology (1). Of these, 2 practice at this address and 3 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 Sleep Medicine Services Of Western Massachusetts LLC was last updated on July 26, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.