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DR. MICHAEL T STACK MD PHD
NPI 1770585945
Internal Medicine - Rheumatology in Indianapolis, IN

Active since June 01, 2005
6447 S EAST ST STE A, INDIANAPOLIS, IN 46227(317) 859-6364(317) 859-7537 Get Directions Write a Review

NPPES record last updated: January 6, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jan 6, 2022, Aug 22, 2019 (2 updates tracked since 2019).

About Dr. Michael T Stack Md Phd NPPES

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

DR. MICHAEL T STACK MD PHD (NPI 1770585945) is an individual rheumatology provider in Indianapolis, Indiana, licensed in Wisconsin (71508) and active in the NPI registry since June 2005. He maintains a secondary practice location in Green Bay.

NPPES Registry Identity

NPI1770585945
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameDR. MICHAEL T STACKCredential: MD PHD
Location Address6447 S EAST ST STE AIndianapolis, IN 46227-2119
Mailing Address6551 Forrest Commons BlvdIndianapolis, IN 46227-2392
Phone(317) 859-6364
Fax(317) 859-7537
Sole ProprietorNo
Enumeration DateJune 1, 2005
Last NPPES UpdateJanuary 6, 20222 updates tracked since enumeration
NPPES CertifiedJanuary 6, 2022
✔ NPI 1770585945 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
Licenses✔ Licensed in WI · 71508✔ Licensed in IN · 01026374
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
Also ListedSpecialist · Research StudyTaxonomy 1744R1102X · License 01026374 (IN)
6447 S EAST ST STE A, Indianapolis, IN 46227
Open in Google Maps ↗

Secondary Practice Location 1

Location 12845 Greenbrier RdGreen Bay, WI 54311 · Phone (920) 288-8100 · Fax (920) 288-8153

Other Identifiers 4

Medicaid100133510BIN
Other000000318888IN · Blue Cross Blue Shield
Medicaid100083069WI
Other1265457774Office/group Npi

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource, Cigna Healthcare.Insurance ›

Other Providers at the Same Location NPPES

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

DIAGNOSTIC RHEUMATOLOGY AND RESEARCH, PC
Specialist (Research Study)
6447 S EAST ST STE A
INDIANAPOLIS, IN 46227
Marion County (317) 859-6364

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 Michael Stack's NPI number?

The NPI number for Michael Stack is 1770585945. It was assigned to this individual provider in the NPPES registry on June 1, 2005.

Where is Michael Stack located?

Michael Stack practices at 6447 S East St Ste A, Indianapolis, IN 46227. The listed phone number is (317) 859-6364.

What is Michael Stack's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

What insurance does Michael Stack accept?

Health plans from CareSource and Cigna Healthcare list Michael Stack 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 Michael Stack was last updated on January 6, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.