NPPES file of Aug 9, 2026

Doctors and health care providers in Rockford, IL

3,893 individual NPPES records list a practice address in Rockford, 6th of 541 Illinois cities. The largest group is family nurse practitioner: 236, 6% of the city's records, against 3% across Illinois. Page 52 of 78.

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

The 8 largest groups in Rockford

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Rockford in Illinois

  • Rank in Illinois6th of 541 cities by records
  • Share of the state1.6% of Illinois's records
  • Specialties present25 or more taxonomy codes
  • Top three groups16.3% of all records
  • Family Nurse Practitioner rank3rd of the 10 Illinois cities with the most

Compared with Illinois as a whole, Rockford has 1.9× the state's share of family nurse practitioner records and 0.30× its share of behavior technician records.

Providers in Rockford, alphabetically

  1. Pia Ong, M.D.Hospitalist Physician1831207174
  2. W Ongena, DDSGeneral Practice Dentistry1295896652
  3. Eric Onsgard, MSW, LCSWClinical Social Worker1043566094
  4. Katie OnsrudFamily Nurse Practitioner1144913724
  5. Adeline Opperman, M.S., CCC-SLPSpeech-Language Pathologist1639434244
  6. Roseanne Oppmann, LCPC, NCCMental Health Counselor1063622876
  7. Hannah Orem, D.C.Chiropractor1619307949
  8. Claudia OrnelasPhysical Therapy Assistant1104580505
  9. Josie Orr, RNFARegistered Nurse First Assistant1093225377
  10. Raquel Ortiz-Merced, PHARMDPharmacist1275482143
  11. Kay Osadjan, R.D.,L.D.N.Registered Dietitian1366619173
  12. Sara Osborne, LSWMental Health Counselor1528937083
  13. Trisha OsbornePhysical Therapy Assistant1245559251
  14. Elizabeth Oseland, RBTBehavior Technician1093205775
  15. Jessica Oslund, N.P.Nurse Practitioner1043791445
  16. Sandra Ostendorf, PTPhysical Therapist1205247848
  17. Lu Ann Ostrander, APNPrimary Care Nurse Practitioner1982144762
  18. Monica Ostrowski, APRNFamily Nurse Practitioner1144084930
  19. Sarah Ostrum, LSWClinical Social Worker1386195634
  20. Allison Oswald, LCSWClinical Social Worker1508688185
  21. Cynthia Otoole - GranberrySpeech-Language Pathologist1346757374
  22. Rukayat Otulana, MDInternal Medicine Physician1013651074
  23. Angela Oviedo, LMSWSocial Worker1558230177
  24. Samantha Owen, LPTAPhysical Therapy Assistant1255570206
  25. Nicole Owens, FNPFamily Nurse Practitioner1811305758
  26. Moses OwusuPharmacist1659984532
  27. Mark Oyer, MDOrthopaedic Surgery Physician1679968812
  28. Donna Oyston, NPNurse Practitioner1366658916
  29. Erin OzminkowskiInternal Medicine Physician1013586064
  30. Douglas Pacaccio, DPMFoot & Ankle Surgery Podiatrist1013005867
  31. Adriana Padron, DMDDentist1245686096
  32. Andrea Padron, BSNRegistered Nurse1285452995
  33. Ixchel Pagan, LMTMassage Therapist1922962331
  34. Daniel Painter, M.D.Physical Medicine & Rehabilitation Physician1326486895
  35. John Pakiela, DOEmergency Medicine Physician1265402036
  36. Andrew Palazzolo, M.D.Anesthesiology Physician1801275763
  37. Nichole Palmeno-Gonzalez, CNANurse's Aide1831618990
  38. Cindi PalmerOccupational Therapist1750874046
  39. Jodi Palmer, SLPSpeech-Language Pathologist1245746627
  40. Michelle Palmer, M.S., CF-SLPSpeech-Language Pathologist1750729919
  41. Wendy Palmer, PHARMDOncology Pharmacist1710815204
  42. Anita Palmer-Hall, O.D.Optometrist1598824203
  43. Adam PalmquistHearing Instrument Specialist1699308395
  44. Andrew PalmquistHearing Instrument Specialist1386092625
  45. Judd Ivan Palonpon, DOStudent in an Organized Health Care Education/Training Program1821848102
  46. Anna Pamula, ODOptometrist1023728995
  47. Aristeidis PanagiotouOrthodontics and Dentofacial Orthopedics Dentistry1477262327
  48. Nimrata PandherDentist1497124671
  49. Dinesh Pandya, D.P.M.Foot & Ankle Surgery Podiatrist1952306045
  50. Patricia Panzica, M.D.Pediatrics Physician1093827222

The largest Illinois cities

  1. Chicago63,379
  2. Springfield4,997
  3. Naperville4,634
  4. Peoria4,621
  5. Evanston4,013

All of Illinois →

How to read this directory

Rockford, Illinois appears in the CMS National Plan and Provider Enumeration System with 3,893 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 Rockford - 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 Rockford 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 Rockford is weighted toward Family Nurse Practitioner (236 clinicians, followed by Clinical Social Worker with 208 and Physical Therapist with 190). 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 Illinois's population, Rockford reports roughly 31 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.

For Rockford 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 Rockford, IL?

There are 3,893 registered healthcare providers in Rockford, IL, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Rockford?

The most common specialties in Rockford are Family Nurse Practitioner, Clinical Social Worker, Physical Therapist, Pharmacist, Professional Counselor. Family Nurse Practitioner has the most providers with 236.

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.