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Anesthesiology

Neil R. Connelly, MD

Works at hospitals in Springfield, MA · Palmer, MA · Massachusetts

Summary

Dr. Neil R. Connelly, MD is an anesthesiologist at 164 High St, Greenfield, MA 01301. Accepts Medicare assignment. In 2024, Neil R. Connelly had 178 Original Medicare patients and 233 services. NPI 1225028962. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 164 High St, Greenfield, MA 01301 · Directions (2 more locations)
  • Medicare: Accepts Medicare assignment
  • Hospitals: Baystate Medical Center, Baystate Wing Hospital
  • Group practice: Baystate Medical Practices Inc
  • Medical school: State University Of Ny Upstate Medical University · graduated 1987 (39 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Neil R. Connelly, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Neil R. Connelly accept Medicare assignment?
Yes. Medicare's clinician data says Neil R. Connelly accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Neil R. Connelly see?
In 2024, CMS data shows 178 Original Medicare patients and 233 services for Neil R. Connelly. This counts Original Medicare only and measures volume, not quality.
What is Neil R. Connelly's NPI number?
1225028962. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Neil R. Connelly, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients178
Services billed to Medicare233
Different services or procedures78
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Anesthesia for other procedure on lower leg, ankle, and foot bones (01480)12 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol74%
  • Arthritis59%
  • Diabetes39%
  • Anxiety35%
  • Chronic kidney disease35%

Hospitals where Neil R. Connelly works

Medicare's Facility Affiliation Data lists Neil R. Connelly at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Baystate Medical CenterSpringfield, MA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 220077
  • Baystate Wing HospitalPalmer, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220030

Practice locations

Addresses where Neil R. Connelly is enrolled with Medicare (CMS data updated October 2, 2026).

  • 164 High StGreenfield, MA 01301
  • 280 Chestnut St, Suite 2Springfield, MA 01199
  • 759 Chestnut StSpringfield, MA 01199

Group practices

Medicare enrollment lists Neil R. Connelly as a member of this group (CMS data updated October 2, 2026).

  • Baystate Medical Practices Inc1,369 clinicians in the group

Specialties

Find other Anesthesiology doctors in Massachusetts →

Other anesthesiologists in Greenfield

Clinicians with the same Medicare primary specialty in Greenfield, MA — not a recommendation.

All anesthesiologists in Greenfield →

Other clinicians in Baystate Medical Practices Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolState University Of Ny Upstate Medical University
Graduation year1987 (39 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1225028962
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians