ALLERGY, ASTHMA & SINUS CENTER, S.C.
NPI 1265546303
Specialist in Greenfield, WI

Q: What is Allergy, Asthma & Sinus Center, S.C.'s NPI number?

The NPI number for Allergy, Asthma & Sinus Center, S.C. is 1265546303. It was assigned to this organization in the NPPES registry on August 18, 2006.

Q: What is Allergy, Asthma & Sinus Center, S.C.'s specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Active since August 18, 2006CLIA 52D1011043 · Waiver

8585 W FOREST HOME AVE, SUITE 200, GREENFIELD, WI 53228(414) 529-8500(414) 529-8511 Get Directions Write a Review

NPPES record last updated: September 17, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Allergy, Asthma & Sinus Center, S.c. NPPES

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

ALLERGY, ASTHMA & SINUS CENTER, S.C. (NPI 1265546303) is a healthcare organization registered as a specialist in Greenfield, Wisconsin and active in the NPI registry since August 2006. The organization holds a CLIA Waiver certificate valid through March 30, 2027 and lists Gary C. Steven, Owner, as its authorized official.

NPPES Registry Identity

NPI1265546303

Entity TypeOrganization

Primary Taxonomy174400000X

Legal Business NameALLERGY, ASTHMA & SINUS CENTER, S.C.

Location Address8585 W FOREST HOME AVE, SUITE 200Greenfield, WI 53228-3417

Mailing Address8585 W Forest Home Ave, Suite 200Greenfield, WI 53228-3417 · (414) 529-8500 · Fax (414) 529-8511

Phone(414) 529-8500

Fax(414) 529-8511

Organization SubpartNo

Authorized OfficialGary C. StevenOwner · (414) 529-8500

Enumeration DateAugust 18, 2006

Last NPPES UpdateSeptember 17, 2009

✔ NPI 1265546303 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in WI · 33574020

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

8585 W FOREST HOME AVE, Greenfield, WI 53228

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Other Identifiers 1

Medicare UPING32673WI

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare), Quartz.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 52D1011043

Allergy, Asthma & Sinus Center, Sc · Greenfield, WI

Active · expires Mar 30, 2027

CLIA Number52D1011043

Laboratory TypePhysician Office

Certificate Effective DateMarch 31, 2025

Certificate Expiration DateMarch 30, 2027

Laboratory DirectorGary C. Steven, MD Phd

Laboratory Phone(414) 529-8500

Laboratory LocationAllergy, Asthma & Sinus Center, Sc8585 W Forest Home Ave Suite 200, Greenfield, WI 53228

CLIA data matches this NPI record on: Address Phone

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

Other Providers at the Same Location NPPES 3

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

MILWAUKEE ASC LLC

Clinic/Center (Ambulatory Surgical)

8585 W FOREST HOME AVE
GREENFIELD, WI 53228

Milwaukee County (414) 427-5138

MS. ELIZABETH ANN KOLL N.P.

Nurse Practitioner

8585 W FOREST HOME AVE
GREENFIELD, WI 53228

Milwaukee County (414) 529-8500

DR. GARY C STEVEN M.D.

Allergy & Immunology (Allergy)

8585 W FOREST HOME AVE, SUITE 200
GREENFIELD, WI 53228

Milwaukee County (414) 529-8500

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 Allergy, Asthma & Sinus Center, S.C.'s NPI number?

The NPI number for Allergy, Asthma & Sinus Center, S.C. is 1265546303. It was assigned to this organization in the NPPES registry on August 18, 2006.

Where is Allergy, Asthma & Sinus Center, S.C. located?

Allergy, Asthma & Sinus Center, S.C. is located at 8585 W Forest Home Ave Suite 200, Greenfield, WI 53228. The listed phone number is (414) 529-8500.

What is Allergy, Asthma & Sinus Center, S.C.'s specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Does Allergy, Asthma & Sinus Center, S.C. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 52D1011043) is associated with this NPI, valid through March 30, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Allergy, Asthma & Sinus Center, S.C. accept?

Health plans from Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare) and Quartz list Allergy, Asthma & Sinus Center, S.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 Allergy, Asthma & Sinus Center, S.C. was last updated on September 17, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.