NPPES file of Aug 9, 2026

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.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

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

  1. Nicole DietzBehavior Technician1790374296
  2. Luisa Diez, ROTOccupational Therapist1003900176
  3. Cassidy DilliardBehavior Technician1851107361
  4. Sherese Dillon, DPMPodiatrist1598730020
  5. Karen DimailigPhysical Therapist1487066353
  6. John Diveris, MDOrthopaedic Surgery Physician1831198324
  7. Lajayla Dixon, RBTBehavior Technician1881331171
  8. Ronica DixonBehavior Analyst1740898360
  9. Gladys Dmello, MSCounselor1710015458
  10. Haley DockeryBehavior Technician1821694050
  11. Alexis Dodson, RBTBehavior Technician1154060887
  12. Maya Dominique, M.D.Obstetrics & Gynecology Physician1942658497
  13. Kimberly DonaghueSocial Worker1104548007
  14. Hayley Dorsett, MA, LMHC, NCCMental Health Counselor1740930726
  15. John Doss, PA-CPhysician Assistant1013520832
  16. Nevaeh DouthittBehavior Technician1043197023
  17. Dawn Downing, MA, LMHC, NCCMental Health Counselor1962515718
  18. Steven DoyleBehavior Technician1629826631
  19. Karen DrakeClinical Social Worker1578861803
  20. Martha Drake, NPFamily Nurse Practitioner1134204183
  21. Charlene Drakos, D.D.S.General Practice Dentistry1306157623
  22. Thomas Drakos, DDSDentist1881764116
  23. Kristi Dresbaugh, CSFAThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1083582092
  24. Christine Drobac, PTAPhysical Therapy Assistant1386852705
  25. Erin Dronet, RBTBehavior Technician1619646882
  26. Halina DukeBehavior Technician1275207532
  27. Sarah Dumbauld, MSN, APRN, FNP-CFamily Nurse Practitioner1588838726
  28. Tara DurantMental Health Counselor1003321084
  29. Dominic Dy, RBTBehavior Technician1528765591
  30. Jennifer Dyarman, PSYD LCSW LCACClinical Psychologist1770873853
  31. Lisa DybalskiPhysical Therapy Assistant1952957565
  32. Kya DyerPediatric Physical Therapist1033819479
  33. James Eadie, M.D.Ophthalmology Physician1205091097
  34. Casey EarlBehavior Technician1174338362
  35. Ashley EarleMental Health Counselor1659857944
  36. Darren Earnshaw, PTPhysical Therapist1346270162
  37. Ethel EatonCounselor1629101639
  38. Jared Eaton, PSYD, HSPPClinical Psychologist1154635043
  39. Rita Eaton, BACounselor1700910205
  40. Marcus EavesBehavior Technician1487524492
  41. Courtney Ebert, MA, NCC, LMHC-AMental Health Counselor1275205742
  42. Leslie EcheverriaBehavior Technician1902694797
  43. Brittany Eckhoff, PA-CPhysician Assistant1164083796
  44. Diamond EddieBehavior Technician1093533325
  45. Shonta EdmondPhlebotomy Technician1124457791
  46. Antony Edukutharayil, DPMPodiatrist1649344979
  47. Eric Eizenga, RNRegistered Nurse1265184873
  48. Rachel EizengaClinical Social Worker1780290585
  49. Alexander Ekeh, RNRegistered Nurse1154521375
  50. Tele Ekundayo, PTPhysical Therapist1396962361

The largest Indiana cities

  1. Indianapolis30,493
  2. Fort Wayne9,203
  3. Evansville4,352
  4. Carmel3,727
  5. Bloomington3,287

All of Indiana →

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.