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Karin G Johnson, MD

Sleep Medicine (Psychiatry & Neurology) Physician in Springfield, MA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1295805075

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Registry record

Entity type Individual (Type 1)
Name Karin G Johnson
Credential MD
Sex Female
Practice address 3300 Main Street, 3rd Floor, Suite C & D, Springfield, MA, 01107
Phone (413) 794-5600
Fax (413) 794-7297
Enumeration date Nov 8, 2006
Last updated in NPPES Feb 1, 2024

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 230775 (MA) Secondary
2084S0012X Sleep Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians · License 230775 (MA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Karin Johnson practice?
The practice location on file with NPPES is in Springfield, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Karin Johnson?
The National Provider Identifier (NPI) for Karin Johnson is 1295805075, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-01.