Healthcare professionals in Merrillville, IN
- Healthcare professionals
- 2,004
- Physicians (MD, DO)
- 256
- Nurses and NPs
- 153
- Physician assistants
- 41
- Behavioral health clinicians
- 1,091
There are 256 physicians among 2,004 healthcare professionals in Merrillville. Regional Health Systems Care Center - Merrillville has the most affiliated doctors, 13, and family medicine is the most common physician specialty.
Find work emails and mobile numbers for 2,004 Merrillville HCPs
Validated work emails and mobile numbers for Merrillville physicians, nurses and every other HCP type, found through healthcare waterfall enrichment, with a free Dmand AI account.
There are 256 physicians (MD and DO) among 2,004 healthcare professionals in Merrillville, IN
Counting every HCP with an active NPI and a Merrillville practice address. Behavioral health clinicians are the largest group, with 1,091, and nurses and nurse practitioners third, with 153.
Merrillville HCPs by type
- Behavioral health clinicians1,091
- Physicians (MD, DO)256
- Nurses and nurse practitioners153
- Therapists (PT and OT)115
- Dentists and dental staff54
- Pharmacists54
- Home and community care workers52
- Non-clinical and support staff44
- Physician assistants41
- Speech therapists and audiologists33
- Other HCPs111
Sources: NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Family medicine is the most common physician specialty in Merrillville, with 26 physicians
Emergency medicine is second, with 22, and internal medicine third, with 21. Each physician is counted once, under the primary specialty on their NPI record.
- Family medicine26
- Emergency medicine22
- Internal medicine21
- Psychiatry16
- Anesthesiology14
- Urology14
- Cardiovascular disease12
- Diagnostic radiology8
- Ophthalmology8
- Orthopaedic surgery8
- Surgery8
- Nephrology7
- Neurology7
- Obstetrics and gynecology7
- Thoracic surgery (cardiothoracic vascular surgery)6
- Pediatrics5
Sources: NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Regional Health Systems Care Center - Merrillville has the most affiliated doctors in Merrillville, with 13
Physicians are counted at each hospital where they have a current affiliation, wherever they live.
| # | Hospital | Health system | Physicians | HCPs |
|---|---|---|---|---|
| 1 | Regional Health Systems Care Center - MerrillvilleMerrillville | Regional Care Group | 13 | 67 |
Source: Dmand AI Affiliation Data
Methodist Hospitals Endocrinology Services has the most doctors of any Merrillville medical group, with 130
NorthShore Health Centers is second with 53 physicians, and Regional Mental Health Center third with 25. Counts are physicians and HCPs with an Indiana address.
Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data
For health IT teams
Dmand AI has the EHR for 974 of 2,004 Merrillville HCPs, at their hospital and their practice. Filter by Epic, Oracle Health, MEDITECH, athenahealth and more, then reach them with validated work emails and mobile numbers.
Group practices and clinics are the most common site of care for Merrillville healthcare professionals, with 409
Hospitals are second, with 353. A clinician can practice at several kinds of site, so the shares overlap. Pharmacies are left out.
Merrillville HCPs by site of care
- Group practices and clinics409
- Hospitals353
- Physician offices80
- FQHCs29
- Home health agencies28
- Ambulatory surgery centers19
- Therapy and rehab centers16
- Skilled nursing facilities13
- Urgent care centers7
- Dialysis centers4
See every site where Merrillville HCPs practice
Each public profile names one place an HCP practices. A free account shows every current hospital, clinic and medical group, the employer and validated contacts for all 2,004.
Sources: Dmand AI Affiliation Data and Dmand AI Practice Data
49% of Merrillville physicians finished medical school 30 or more years ago
98 of the 198 Merrillville physicians with a graduation year on file. 29 graduated in the last 10 years.
Physicians by years since medical school
- Under 10 years ago29
- 10 to 19 years ago37
- 20 to 29 years ago34
- 30 to 39 years ago37
- 40 or more years ago61
Source: Dmand AI Professional Profile Data
Every Merrillville HCP profile shows where they practice now, their Medicare activity and their NPI details
- Primary practiceThe main place they practice, with its type and cityOn every profile
- Every site of careEach hospital, clinic and group where they practice nowWith a free account
- EmployerThe organization they work for, when one is on fileWith a free account
- Medicare servicesServices and procedure codes billed to Medicare, from CMSOn every profile
- Medicare Part D prescribingClaims and drug costs from Part D, from CMSOn every profile
- Industry paymentsPayments from drug and device makers, from CMS Open PaymentsOn every profile
- Publications and clinical trialsResearch papers and trials linked to the NPI, when on fileOn every profile
- Licenses and graduation yearState license numbers and medical school graduation yearOn every profile
- NPI detailsNPI, enumeration date, primary taxonomy and practice addressOn every profile
- Work email and mobile numberFound on request through healthcare waterfall enrichment, then validatedWith a free account
- EHR in useThe EHR at each site where they practiceWith a free account
- Colleagues at each siteThe clinicians they work with at each hospital and groupWith a free account
Free account: 30 days free, self-serve, no credit card.
Sources: NPPES NPI Registry (CMS), Medicare Physician & Other Practitioners (CMS), Open Payments (CMS) and Dmand AI Affiliation Data
Sources for the Merrillville HCP directory
| Data on this page | Source |
|---|---|
| HCPs, types and specialties | NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data |
| Sites of care, hospitals and medical groups | Dmand AI Affiliation Data |
| Medical school graduation year | Dmand AI Professional Profile Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
The directory counts HCPs with an active individual NPI, a name and a Merrillville practice address.
FAQ
Frequently asked questions about doctors and healthcare professionals 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 doctors are in Merrillville?
256 physicians (MDs and DOs) have an active NPI and a Merrillville practice address, among 2,004 Merrillville healthcare professionals.
What are the most common physician specialties in Merrillville?
By primary specialty: family medicine (26), emergency medicine (22), internal medicine (21), psychiatry (16), anesthesiology (14).
Which medical groups have the most Merrillville doctors?
Methodist Hospitals Endocrinology Services (130 physicians), NorthShore Health Centers (53 physicians) and Regional Mental Health Center (25 physicians). Counts are physicians with an Indiana address.
How many Merrillville physicians finished medical school 30 or more years ago?
98 of the 198 with a graduation year on file, or 49%. 29 graduated in the last 10 years.
How can I contact healthcare professionals in Merrillville?
Dmand AI finds validated work emails, mobile numbers and practice phone numbers for healthcare professionals in Merrillville through healthcare waterfall enrichment, matched to the site where each one practices now. They are available with a free Dmand AI account: 30 days free, self-serve, no credit card.
Dmand AI
Find the right contacts among Merrillville healthcare professionals
Search 2,004 Merrillville HCPs by specialty, hospital, group and city, with validated work emails and mobile numbers.
- 30 days free
- Self-serve
- No credit card