Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Seyedeh Hosseini, MD

Internal Medicine Physician in Springfield, MA · enumerated 2008.

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

National Provider Identifier

1255598835

Verified

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Registry record

Entity type Individual (Type 1)

Name Seyedeh Hosseini

Credential MD

Sex Female

Practice address Springfield, MA, 01109

Phone (413) 726-6702

Fax (413) 726-6304

Enumeration date May 21, 2008

Last updated in NPPES Aug 18, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 241860 (MA) Primary

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
110083972/A	Medicaid	MA	-
241860	Other	MA	LICENSE
11995464	Other	-	CAQH

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

Is NPI 1255598835 active?

Yes, as of the latest NPPES snapshot, NPI 1255598835 is active (record last updated 2014-08-18).

How do I verify Seyedeh Hosseini's NPI record?

Cross-check NPI 1255598835 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-18.