Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Jo S Farmer, MD PHD

Pulmonary Disease Physician in Springfield, MA · enumerated 2005.

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

National Provider Identifier

1942296108

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Registry record

Entity type Individual (Type 1)

Name Mary Jo S Farmer

Credential MD PHD

Sex Female

Practice address 3300 Main St, 2nd Floor, Suite A, Springfield, MA, 01107

Phone (413) 794-7330

Fax (413) 794-8163

Enumeration date Sep 23, 2005

Last updated in NPPES Jan 12, 2018

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 206728 (MA) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Mary Jo Farmer?

The National Provider Identifier (NPI) for Mary Jo Farmer is 1942296108, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Jo Farmer practice?

The practice location on file with NPPES is in Springfield, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-01-12.