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Dr. James Haines & Dr. William Belcastro, Ptr.

Internal Medicine Physician in Springfield, MA · enumerated 2005 · authorized official Suzette Grych, Office Manager.

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

National Provider Identifier

1124027834

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Registry record

Entity type Organization (Type 2)
Legal business name Dr. James Haines & Dr. William Belcastro, Ptr.
Practice address 299 Carew St, Suite 322, Springfield, MA, 01104
Phone (413) 737-2371
Fax (413) 788-7829
Enumeration date Jul 15, 2005
Last updated in NPPES Jul 21, 2022

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Suzette Grych
Title Office Manager
Phone (413) 737-2371

Other identifiers

Identifier Type State Issuer
670286 Other MA TUFTS HEALTH PLAN
CE3089 Other - RAILROAD MEDICARE

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

What is the NPI number for Dr. James Haines & Dr. William Belcastro, Ptr.?
The NPI for Dr. James Haines & Dr. William Belcastro, Ptr. is 1124027834, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Dr. James Haines & Dr. William Belcastro, Ptr.?
NPPES lists Suzette Grych (Office Manager) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.