INFECTIOUS DISEASE SPECIALISTS PC
NPI 1245217215
Internal Medicine - Infectious Disease in Merrillville, IN

Active since December 29, 2005
200 E 86TH PL, MERRILLVILLE, IN 46410(219) 972-1547(219) 972-1651 Get Directions Write a Review

NPPES record last updated: July 31, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Infectious Disease Specialists Pc NPPES

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

INFECTIOUS DISEASE SPECIALISTS PC (NPI 1245217215) is a healthcare organization registered as an infectious disease in Merrillville, Indiana and active in the NPI registry since December 2005. The organization lists Thomas K. Sleweon, Md/president, as its authorized official.

NPPES Registry Identity

NPI1245217215
Entity TypeOrganization
Primary Taxonomy207RI0200X
Legal Business NameINFECTIOUS DISEASE SPECIALISTS PC
Location Address200 E 86TH PLMerrillville, IN 46410-6258
Mailing AddressPo Box 10667Merrillville, IN 46411-0667 · (219) 738-6726 · Fax (219) 738-6716
Fax(219) 972-1651
Organization SubpartNo
Authorized OfficialThomas K. SleweonMd/president · (219) 972-1547
Enumeration DateDecember 29, 2005
Last NPPES UpdateJuly 31, 2025
✔ NPI 1245217215 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
200 E 86TH PL, Merrillville, IN 46410

Other Identifiers 2

Medicaid200307990IN
Medicaid300069075IN

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 SINGLE SPECIALTY GROUP

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Infectious Disease Specialists Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

13

Medicare enrollment records show 13 clinicians reassign Medicare billing to Infectious Disease Specialists PC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 7 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 3

Nurse Practitioner7
Infectious Disease5
Internal Medicine1

Clinicians, nearest first (13)

Infectious Disease
NPI 1720017262
200 E 86TH PL
Merrillville, IN 46410
(219) 972-1547
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1528392156
4900 BROADWAY
Gary, IN 46408
(219) 237-5170
✔ PECOS✔ Accepts Medicare4.7 mi
Nurse Practitioner
NPI 1265507487
9143 INDIANAPOLIS BLVD SUITE 100
Highland, IN 46322
(219) 972-1547
✔ PECOS✔ Accepts Medicare9.3 mi
Infectious Disease
NPI 1114909769
9143 INDIANAPOLIS BLVD
Highland, IN 46322
(219) 972-1547
✔ PECOS✔ Accepts Medicare9.3 mi
Infectious Disease
NPI 1699858985
9143 INDIANAPOLIS BLVD
Highland, IN 46322
(219) 972-1547
✔ PECOS✔ Accepts Medicare9.3 mi
Nurse Practitioner
NPI 1871675637
1532 CALUMET AVE
Dyer, IN 46311
(872) 231-3162
✔ PECOS✔ Accepts Medicare9.6 mi
Nurse Practitioner
NPI 1285265686
600 GRANT ST
Gary, IN 46402
(219) 886-4000
✔ PECOS✔ Accepts Medicare9.7 mi
Infectious Disease
NPI 1750363206
2701 LEONARD DR
Valparaiso, IN 46383
(219) 548-8900
✔ PECOS✔ Accepts Medicare16 mi
Infectious Disease
NPI 1669781050
2701 LEONARD DR
Valparaiso, IN 46383
(219) 548-0160
✔ PECOS✔ Accepts Medicare16 mi
Nurse Practitioner
NPI 1760071815
2711 LEONARD DR STE 101
Valparaiso, IN 46383
(219) 462-6001
✔ PECOS✔ Accepts Medicare16 mi
Nurse Practitioner
NPI 1265957971
703 N MAIN ST
Kouts, IN 46347
(219) 766-3131
✔ PECOS✔ Accepts Medicare19 mi
Internal Medicine
NPI 1144846254
2160 S 1ST AVE
Maywood, IL 60153
(573) 884-1606
✔ PECOS✔ Accepts Medicare38 mi
Nurse Practitioner
NPI 1336818145
20531 DARDEN RD
South Bend, IN 46637
(847) 235-6130
✔ PECOS✔ Accepts Medicare58 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Infectious Disease Specialists PC's NPI number?

The NPI number for Infectious Disease Specialists PC is 1245217215. It was assigned to this organization in the NPPES registry on December 29, 2005.

Where is Infectious Disease Specialists PC located?

Infectious Disease Specialists PC is located at 200 E 86th Pl, Merrillville, IN 46410. The listed phone number is (219) 972-1547.

What is Infectious Disease Specialists PC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Infectious Disease Specialists PC enrolled in Medicare?

Yes. Infectious Disease Specialists PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Infectious Disease Specialists PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 13 clinicians in 3 Medicare specialties reassign their Medicare billing to Infectious Disease Specialists PC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (7), Infectious Disease (5) and Internal Medicine (1). Of these, 1 practice at this address and 7 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Infectious Disease Specialists PC accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource list Infectious Disease Specialists PC 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 Infectious Disease Specialists PC was last updated on July 31, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.