Doctors and health care providers in Merrillville, IN
1,972 individual NPPES records list a practice address in Merrillville, 12th of 269 Indiana cities. The largest group is behavior technician: 616, 31% of the city's records, against 14% across Indiana. Page 9 of 40.
The 8 largest groups in Merrillville
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Merrillville in Indiana
- Rank in Indiana12th of 269 cities by records
- Share of the state1.6% of Indiana's records
- Specialties present25 or more taxonomy codes
- Top three groups41.8% of all records
- Behavior Technician rank5th of the 10 Indiana cities with the most
Compared with Indiana as a whole, Merrillville has 4.8× the state's share of counselor records and 0.27× its share of student in an organized health care education/training program records.
Providers in Merrillville, alphabetically
- Nicole DietzBehavior Technician1790374296
- Luisa Diez, ROTOccupational Therapist1003900176
- Cassidy DilliardBehavior Technician1851107361
- Sherese Dillon, DPMPodiatrist1598730020
- Karen DimailigPhysical Therapist1487066353
- John Diveris, MDOrthopaedic Surgery Physician1831198324
- Lajayla Dixon, RBTBehavior Technician1881331171
- Ronica DixonBehavior Analyst1740898360
- Gladys Dmello, MSCounselor1710015458
- Haley DockeryBehavior Technician1821694050
- Alexis Dodson, RBTBehavior Technician1154060887
- Maya Dominique, M.D.Obstetrics & Gynecology Physician1942658497
- Kimberly DonaghueSocial Worker1104548007
- Hayley Dorsett, MA, LMHC, NCCMental Health Counselor1740930726
- John Doss, PA-CPhysician Assistant1013520832
- Nevaeh DouthittBehavior Technician1043197023
- Dawn Downing, MA, LMHC, NCCMental Health Counselor1962515718
- Steven DoyleBehavior Technician1629826631
- Karen DrakeClinical Social Worker1578861803
- Martha Drake, NPFamily Nurse Practitioner1134204183
- Charlene Drakos, D.D.S.General Practice Dentistry1306157623
- Thomas Drakos, DDSDentist1881764116
- Kristi Dresbaugh, CSFAThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1083582092
- Christine Drobac, PTAPhysical Therapy Assistant1386852705
- Erin Dronet, RBTBehavior Technician1619646882
- Halina DukeBehavior Technician1275207532
- Sarah Dumbauld, MSN, APRN, FNP-CFamily Nurse Practitioner1588838726
- Tara DurantMental Health Counselor1003321084
- Dominic Dy, RBTBehavior Technician1528765591
- Jennifer Dyarman, PSYD LCSW LCACClinical Psychologist1770873853
- Lisa DybalskiPhysical Therapy Assistant1952957565
- Kya DyerPediatric Physical Therapist1033819479
- James Eadie, M.D.Ophthalmology Physician1205091097
- Casey EarlBehavior Technician1174338362
- Ashley EarleMental Health Counselor1659857944
- Darren Earnshaw, PTPhysical Therapist1346270162
- Ethel EatonCounselor1629101639
- Jared Eaton, PSYD, HSPPClinical Psychologist1154635043
- Rita Eaton, BACounselor1700910205
- Marcus EavesBehavior Technician1487524492
- Courtney Ebert, MA, NCC, LMHC-AMental Health Counselor1275205742
- Leslie EcheverriaBehavior Technician1902694797
- Brittany Eckhoff, PA-CPhysician Assistant1164083796
- Diamond EddieBehavior Technician1093533325
- Shonta EdmondPhlebotomy Technician1124457791
- Antony Edukutharayil, DPMPodiatrist1649344979
- Eric Eizenga, RNRegistered Nurse1265184873
- Rachel EizengaClinical Social Worker1780290585
- Alexander Ekeh, RNRegistered Nurse1154521375
- Tele Ekundayo, PTPhysical Therapist1396962361
The largest Indiana cities
- Indianapolis30,493
- Fort Wayne9,203
- Evansville4,352
- Carmel3,727
- Bloomington3,287
How to read this directory
Merrillville, Indiana appears in the CMS National Plan and Provider Enumeration System with 1,972 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Merrillville - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Merrillville practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.
The provider mix in Merrillville is weighted toward Behavior Technician (616 clinicians, followed by Mental Health Counselor with 110 and Counselor with 99). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Indiana's population, Merrillville reports roughly 28.7 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.
Of Indiana's most common specialties, Physician Assistant is the most prominent one with no provider currently listing a Merrillville practice address, a coverage gap Merrillville patients typically fill by traveling to a larger nearby hub.
For Merrillville patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.
For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.
Common questions
How many doctors are in Merrillville, IN?
There are 1,972 registered healthcare providers in Merrillville, IN, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Merrillville?
The most common specialties in Merrillville are Behavior Technician, Mental Health Counselor, Counselor, Clinical Social Worker, Family Nurse Practitioner. Behavior Technician has the most providers with 616.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.