ENDOCRINE ASSOCIATES OF WESTERN MASS, P.C.
NPI 1396766424
Internal Medicine - Endocrinology, Diabetes & Metabolism in Springfield, MA

Q: What is Endocrine Associates Of Western Mass, P.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Active since July 22, 2006CLIA 22D0709439 · Waiver

2 MEDICAL CENTER DR, STE. 210, SPRINGFIELD, MA 01107(413) 734-4661(413) 737-1930 Get Directions Write a Review

NPPES record last updated: February 20, 2009. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Endocrine Associates Of Western Mass, P.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ENDOCRINE ASSOCIATES OF WESTERN MASS, P.C. (NPI 1396766424) is a healthcare organization registered as an endocrinology, diabetes & metabolism in Springfield, Massachusetts and active in the NPI registry since July 2006. The organization holds a CLIA Waiver certificate valid through March 9, 2027 and lists Barry Z Izenstein, President, as its authorized official.

NPPES Registry Identity

NPI1396766424

Entity TypeOrganization

Primary Taxonomy207RE0101X

Legal Business NameENDOCRINE ASSOCIATES OF WESTERN MASS, P.C.

Location Address2 MEDICAL CENTER DR, STE. 210Springfield, MA 01107-1270

Mailing Address2 Medical Center Dr, Ste. 210Springfield, MA 01107-1270 · (413) 734-4661 · Fax (413) 737-1930

Phone(413) 734-4661

Fax(413) 737-1930

Organization SubpartNo

Authorized OfficialBarry Z IzensteinPresident · (413) 734-4661

Enumeration DateJuly 22, 2006

Last NPPES UpdateFebruary 20, 2009

✔ NPI 1396766424 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians

Taxonomy Code207RE0101X

Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

2 MEDICAL CENTER DR, Springfield, MA 01107

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Other Identifiers 1

Medicare PINM09818

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 22D0709439

Endocrine Associates Of Western Mass PC · Springfield, MA

Active · expires Mar 9, 2027

CLIA Number22D0709439

Laboratory TypePhysician Office

Certificate Effective DateMarch 10, 2025

Certificate Expiration DateMarch 9, 2027

Laboratory DirectorBarry Z. Izenstein

Laboratory Phone(413) 734-4661

Laboratory LocationEndocrine Associates Of Western Mass PC2 Medical Center Drive Suite #210, Springfield, MA 01107

CLIA data matches this NPI record on: Address Name Phone

This certificate is issued to a laboratory to perform only waived tests.

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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PETER WHITTREDGE M.D.

Internal Medicine (Cardiovascular Disease)

2 MEDICAL CENTER DR, SUITE 410
SPRINGFIELD, MA 01107

Hampden County (413) 781-5735

DAVID W PAGE MD

Surgery

2 MEDICAL CENTER DR, SUITE 308
SPRINGFIELD, MA 01107

Hampden County (413) 794-7020

DR. BENJAMIN J SCHALET MD

Plastic Surgery

2 MEDICAL CENTER DR, SUITE 309
SPRINGFIELD, MA 01107

Hampden County (413) 794-5363

JACQUELINE J WU M.D.

Surgery

2 MEDICAL CENTER DR, STE 308
SPRINGFIELD, MA 01107

Hampden County (413) 794-7020

FREDERIC BROWNSTEIN M.D.

Obstetrics & Gynecology

2 MEDICAL CENTER DR, SUITE 306
SPRINGFIELD, MA 01107

Hampden County (413) 794-1020

PEDIATRIC GASTROENTEROLOGY & NUTRITION OF WESTERN MA

Pediatrics

2 MEDICAL CENTER DR
SPRINGFIELD, MA 01107

Hampden County (413) 733-4450

MARIA A. AQUADRO NP

Nurse Practitioner (Family)

2 MEDICAL CENTER DR, SUITE 205
SPRINGFIELD, MA 01107

Hampden County (413) 794-8050

SUSAN LIBBOS CNM

Advanced Practice Midwife

2 MEDICAL CENTER DR, SUITE 204
SPRINGFIELD, MA 01107

Hampden County (413) 794-9969

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Endocrine Associates Of Western Mass, P.C.'s NPI number?

The NPI number for Endocrine Associates Of Western Mass, P.C. is 1396766424. It was assigned to this organization in the NPPES registry on July 22, 2006.

Where is Endocrine Associates Of Western Mass, P.C. located?

Endocrine Associates Of Western Mass, P.C. is located at 2 Medical Center Dr Ste. 210, Springfield, MA 01107. The listed phone number is (413) 734-4661.

What is Endocrine Associates Of Western Mass, P.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Does Endocrine Associates Of Western Mass, P.C. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 22D0709439) is associated with this NPI, valid through March 9, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Endocrine Associates Of Western Mass, P.C. accept?

Health plans from Anthem Blue Cross and Blue Shield list Endocrine Associates Of Western Mass, P.C. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Endocrine Associates Of Western Mass, P.C. was last updated on February 20, 2009. NPI Profile syncs with the weekly NPPES data releases published by CMS.