Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Sleep Medicine

Karin G. Johnson, MD

Works at hospitals in Greenfield, MA · Springfield, MA · Westfield, MA · Massachusetts

Summary

Karin G. Johnson, MD (Sleep Medicine) is listed by Medicare at 3 hospitals in Greenfield, MA, Springfield, MA and Westfield, MA. NPI 1295805075. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Karin G. Johnson, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Sleep MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
23Years since medical school (graduated 2003)
University Of Chicago, Pritzker School Of MedicineMedical school
FemaleGender (as listed)
Baystate Medical Practices IncGroup practice

Quick answers

Which hospitals does Karin G. Johnson work at?
Medicare's official clinician data lists Karin G. Johnson at 3 hospitals: Baystate Franklin Medical Center, Baystate Medical Center and Baystate Noble Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Karin G. Johnson see patients?
Medicare's clinician data lists 1 practice location in Springfield, MA. Call before your visit to confirm the address.
What is Karin G. Johnson's specialty?
Medicare lists Sleep Medicine as the primary specialty, and also Neurology.
Does Karin G. Johnson accept Medicare assignment?
Yes. Medicare's clinician data says Karin G. Johnson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Karin G. Johnson offer telehealth?
Medicare's clinician data says Karin G. Johnson offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Karin G. Johnson?
(413) 794-7031, as listed in official Medicare / NPI Registry data.
What is Karin G. Johnson's NPI number?
1295805075. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Karin G. Johnson works

Medicare's Facility Affiliation Data lists Karin G. Johnson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Karin G. Johnson is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Karin G. Johnson as a member of this group (CMS data updated 2026-10-02).

  • Baystate Medical Practices Inc1,369 clinicians in the group

Specialties

Find other Sleep Medicine doctors in Massachusetts →

Other sleep medicine doctors in Springfield

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

All sleep medicine doctors in Springfield →

Clinician information

CredentialMD
Medical schoolUniversity Of Chicago, Pritzker School Of Medicine
Graduation year2003
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1295805075
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians