Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jeffrey W Blomstedt, MD

Nephrology Physician in Greenfield, MA · enumerated 2005 · practices at Bio-Medical Applications of Massachusetts, Inc..

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

National Provider Identifier

1831180363

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Registry record

Entity type Individual (Type 1)

Name Dr. Jeffrey W Blomstedt

Credential MD

Sex Male

Practice address 115 Wildwood Ave, Western New England Renal and Trans, Greenfield, MA, 01301

Phone (413) 773-5797

Fax (413) 773-9009

Enumeration date Nov 3, 2005

Last updated in NPPES Mar 5, 2014

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 53601 (MA) Primary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 9863 (NH) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
1001541	Medicaid	VT	-
6183557	Medicaid	MA	-
99904936	Medicaid	NH	-

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

Where does Jeffrey Blomstedt practice?

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

What is the NPI number for Jeffrey Blomstedt?

The National Provider Identifier (NPI) for Jeffrey Blomstedt is 1831180363, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Michael Plager Nephrology Physician · Greenfield, MA NPI 1386635811 Bio-Medical Applications of Massachusetts, Inc. End-Stage Renal Disease (ESRD) Treatment Clinic/Center · Greenfield, MA NPI 1881603595 Despina Hoffman Nephrology Physician · Greenfield, MA NPI 1285950816

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-05.