Updated October 2026

Medical groups in Merrillville, IN

Medical group directory
Merrillville, Indiana

Medical groups: 50
Multi-specialty: 8
Single-specialty: 42
More than one site: 31
100+ physicians: 1

There are 50 medical groups in Merrillville with a Medicare PAC ID. Methodist Hospitals Endocrinology Services is the largest, with 130 Indiana physicians, followed by NorthShore Health Centers with 53. 70% of Merrillville groups are independent.

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Methodist Hospitals Endocrinology Services is the largest medical group in Merrillville, with 130 physicians

Ranked by physicians with an Indiana address linked to each group based in Merrillville. NorthShore Health Centers is second with 53, and Regional Mental Health Center third with 25. 1 Merrillville group has 100 or more physicians.

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Medical groups in Merrillville, ranked by physicians
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1	Methodist Hospitals Endocrinology ServicesMerrillville · 33 sites	Parent on file	130	212	Decision makers
2	NorthShore Health CentersMerrillville · 29 sites	Parent on file	53	129	Decision makers
3	Regional Mental Health CenterMerrillville · 13 sites	Parent on file	25	91	Decision makers
4	Urologic Specialists of Northwest IndianaMerrillville · 6 sites	-	14	18	Decision makers
5	Methodist Hospitals CardiographicsMerrillville · 5 sites	Parent on file	13	13	Decision makers
6	N W Indiana Radiology Services, PCMerrillville · 5 sites	-	13	13	Decision makers
7	Premier Oncology Hematology AssociatesMerrillville · 2 sites	-	9	11	Decision makers
8	Bindal Anesthesiologists, LtdMerrillville · 2 sites	-	8	16	Decision makers
9	The Neurological Institute & Specialty CenterMerrillville · 1 site	Parent on file	7	7	Decision makers
10	Infectious Disease Specialists, P.C.Merrillville · 4 sites	Parent on file	5	11	Decision makers
11	CarePointe Ear, Nose, Throat, Sinus and Hearing CenterMerrillville · 4 sites	-	4	8	Decision makers
12	Vein & LaserMerrillville · 5 sites	-	4	5	Decision makers
13	Bone & Joint SpecialistsMerrillville · 2 sites	-	3	26	Decision makers
14	Chest Diseases AssociatesMerrillville · 1 site	-	3	5	Decision makers
15	Suresh D. Reddy, MD, LLCMerrillville · 1 site	Parent on file	3	4	Decision makers
16	Northwest Indiana Occupational Pain and Wellness CenterMerrillville · 2 sites	-	2	5	Decision makers
17	Arshad P. Malik MD PCMerrillville · 1 site	Parent on file	2	3	Decision makers
18	Deen-Gross Eye CentersMerrillville · 2 sites	-	2	3	Decision makers
19	Kidney Care CenterMerrillville · 3 sites	-	2	3	Decision makers
20	Neurological & Spinal SurgeryMerrillville · 1 site	-	2	2	Decision makers
21	William J. Pierce, M.D., P.C.Merrillville · 1 site	-	2	2	Decision makers
22	Michael Frampton M.D. & AssociatesMerrillville · 2 sites	-	1	10	Decision makers
23	Family Medicine of Merrillville, P.C.Merrillville · 1 site	-	1	5	Decision makers
24	Excellent NeurologyMerrillville · 2 sites	-	1	3	Decision makers
25	Hope-FACS L.L.C.Merrillville · 3 sites	-	1	3	Decision makers
26	RP Wellness CenterMerrillville · 2 sites	Parent on file	1	3	Decision makers
27	Midwest Infectious Diseases AssociatesMerrillville · 1 site	Parent on file	1	2	Decision makers
28	Northwest Endocrinology and DiabetesMerrillville · 1 site	Parent on file	1	2	Decision makers
29	Way Less Weight Loss ClinicMerrillville · 1 site	-	1	2	Decision makers
30	Ludag, LLCMerrillville · 2 sites	-	1	1	Decision makers
31	USA Vein Clinics, MerrillvilleMerrillville · 1 site	Parent on file	1	1	Decision makers
32	Innovations In LearningMerrillville · 1 site	Parent on file	-	17	Decision makers
33	Moses Eyecare CentersMerrillville · 6 sites	-	-	15	Decision makers
34	Vision Quest Eye ClinicsMerrillville · 3 sites	-	-	10	Decision makers
35	Mid-America Psychological & Counseling ServicesMerrillville · 4 sites	-	-	8	Decision makers
36	Aspire Oral SurgeryMerrillville · 3 sites	-	-	4	Decision makers
37	Kauffman ChiropracticMerrillville · 1 site	-	-	4	Decision makers
38	WellHome PsychologyMerrillville · 3 sites	-	-	4	Decision makers
39	Apex Physical TherapyMerrillville · 2 sites	-	-	3	Decision makers
40	Podiatric Medical AssociatesMerrillville · 4 sites	Parent on file	-	3	Decision makers
41	The Institute of Foot & Ankle Reconstructive SurgeryMerrillville · 3 sites	-	-	3	Decision makers
42	Active Rehab and WellnessMerrillville · 1 site	-	-	2	Decision makers
43	American Physical TherapyMerrillville · 2 sites	-	-	2	Decision makers
44	Gerald Lewis & AssociatesMerrillville · 1 site	-	-	2	Decision makers
45	New Life Family ChiropracticMerrillville · 1 site	-	-	2	Decision makers
46	Merrillville Orthopedics and Spine InstituteMerrillville · 1 site	-	-	1	Decision makers
47	Retina Vitreous Associates (Merrillville Retina Associates)Merrillville · 5 sites	-	-	1	Decision makers
48	Stardust Health & Wound CareMerrillville · 1 site	-	-	1	Decision makers
49	First Call UrologyMerrillville · 1 site	-	-	-	Decision makers
50	Paragon Clinical, LLCMerrillville · 2 sites	Parent on file	-	-	Decision makers

Showing 1 to 10 of 50 medical groups in Merrillville

Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data

The Methodist Hospitals has the most physicians in Merrillville medical groups, with 139 across 4 groups

Dmand AI maps every Merrillville medical group to its parent organization, up to the health system or platform at the top. 2 parent organizations have two or more Merrillville medical groups. Among health systems, Community Healthcare System has the most groups, 5. Each clinician counts once per parent organization.

Parent organizations with the most Merrillville medical groups
#	Parent organization	Merrillville groups	Physicians	HCPs
1	The Methodist HospitalsHealth system	4	139	222
2	Community Healthcare SystemHealth system	5	9	20

Parent organizations with two or more Merrillville groups

The Methodist HospitalsHealth system · 4 Merrillville medical groups
Methodist Hospitals Endocrinology ServicesMulti-specialty group · 33 sites
Methodist Hospitals CardiographicsMedical group · 5 sites
2 more Merrillville groups and their practice sites

See every medical group, site and clinician under The Methodist Hospitals

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Source: Dmand AI Org Hierarchy Data

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70% of Merrillville medical groups are independent, with no larger parent organization

A group counts as independent when no health system, platform or other organization sits above it in the org hierarchy. Every other group belongs to a larger organization.

Merrillville medical groups by ownership

Independent3570%
Health system or hospital918%
Platform or corporate owner36%
Community or government24%
Other organization12%

Source: Dmand AI Org Hierarchy Data

11 Merrillville medical groups practice at a hospital site

Beyond their own offices, groups practice at the sites of care linked to them in the org hierarchy. A group can practice at several kinds of site, so the shares overlap.

Merrillville medical groups by site of care

Hospitals1122%
FQHCs36%
Ambulatory surgery centers24%
Skilled nursing facilities24%
Behavioral health facilities12%
Home health agencies12%

Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data

Primary care groups are the most common medical groups in Merrillville, with 19

Each group is counted once, under its main specialty. Behavioral and mental health groups are second, with 7, and 8 Merrillville groups are multi-specialty.

Source: Dmand AI Professional Profile Data

645 Indiana HCPs work in Merrillville medical groups, 281 of them physicians

Each clinician is counted once, across every Merrillville group they are linked to. Only clinicians with an Indiana address are counted.

HCPs in Merrillville medical groups by type

Physicians (MD, DO)28144%
Nurses and nurse practitioners15123%
Behavioral health clinicians9114%
Optometrists and opticians294%
Therapists (PT and OT)223%
Other HCPs7111%

Source: Dmand AI Affiliation Data

Each Merrillville medical group profile shows the parent, sites, clinicians and identifiers

Clinicians and specialtiesA count by specialty and a sample of the group's cliniciansOn every profile
Practice locationsMain site and a sample of practice locations, with a count of the restOn every profile
Medicare Part B paymentsMedicare payments to the group, from CMSOn every profile
Group NPI and Medicare PAC IDIdentifiers for matching records across sourcesOn every profile
Parent organizationThe health system, platform or owner above the groupOn every profile
Every clinician and siteThe full roster and every practice locationWith a free account
Leader and clinician contactsWork emails and mobile numbers, found on request and then validatedWith a free account
EHR used by the group's cliniciansThe EHR in use at the group's sitesWith a free account

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Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data

Sources for the Merrillville medical group directory

Sources for the data on this page
Data on this page	Source
Medical groups, specialties and sites	Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Professional Profile Data
Parent organizations and independence	Dmand AI Org Hierarchy Data
Physicians and HCPs	Dmand AI Affiliation Data
Group NPI and PAC ID	NPPES NPI Registry (CMS) and Doctors and Clinicians National Downloadable File (CMS)

Data last refreshed October 2026Report an inaccuracy Remove my information

The directory lists groups based in Merrillville with a Medicare PAC ID.

FAQ

Frequently asked questions about medical groups in Merrillville

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

How many medical groups are in Merrillville?

There are 50 medical groups based in Merrillville with a Medicare PAC ID: 8 multi-specialty and 42 single-specialty. 31 of them have more than one site.

What is the largest medical group in Merrillville?

Methodist Hospitals Endocrinology Services, with 130 physicians and 212 HCPs with an Indiana address. NorthShore Health Centers is second with 53, and Regional Mental Health Center is third with 25.

Which health system has the most medical groups in Merrillville?

By physicians, The Methodist Hospitals, with 139 across 4 groups, followed by Community Healthcare System with 9.

How many Merrillville medical groups are independent?

35, or 70%, have no larger parent organization in the Dmand AI org hierarchy. 9 belong to a health system or hospital and 3 to a physician platform or corporate owner.

How many Merrillville medical groups practice at a hospital?

11 Merrillville groups practice at a hospital site linked to them in the Dmand AI org hierarchy.

How do I find a medical group's NPI or PAC ID?

Each medical group profile lists the group NPI and Medicare PAC ID at the top, with the main address and phone number. The NPI comes from the NPPES NPI Registry and the PAC ID from CMS Medicare enrollment.

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