Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Alton Multispecialists, Ltd.

Q: What type of organization is Alton Multispecialists, Ltd.?

Alton Multispecialists, Ltd. is registered in NPPES as a Mammography Clinic/Center (its primary provider taxonomy).

Mammography Clinic/Center in Alton, IL · enumerated 2006 · authorized official Sherri Henson, Executive Director.

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

National Provider Identifier

1942312442

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Registry record

Entity type Organization (Type 2)

Legal business name Alton Multispecialists, Ltd.

Practice address 1 Professional Dr, Alton, IL, 62002

Phone (618) 463-8500

Fax (618) 474-0130

Enumeration date Aug 31, 2006

Last updated in NPPES Aug 30, 2016

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036-071248 (IL) Secondary

261QR0206X Mammography Clinic/Center Ambulatory Health Care Facilities · License 100867 (IL) Primary

Authorized official

Name Sherri Henson

Title Executive Director

Phone (618) 463-8634

Other identifiers

Identifier	Type	State	Issuer
207219	Other	IL	PTAN
0317160001	Other	-	MEDICARE DME SUPPLIER
687340	Other	IL	PTAN
06015403	Other	IL	BLUE CROSS/BLUE SHIELD

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Alton Multispecialists, Ltd.?

Alton Multispecialists, Ltd. is registered in NPPES as a Mammography Clinic/Center (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-30.