NPPES file of Aug 9, 2026

Doctors and health care providers in Oak Park, IL

2,307 individual NPPES records list a practice address in Oak Park, 15th of 541 Illinois cities. The largest group is clinical social worker: 281, 12% of the city's records, against 6% across Illinois. Page 45 of 47.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

The 8 largest groups in Oak Park

  1. Clinical Social Worker281
  2. Behavior Technician240
  3. Mental Health Counselor138
  4. Professional Counselor124
  5. Physical Therapist106
  6. Family Medicine Physician86
  7. Social Worker83
  8. Clinical Psychologist83

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

Oak Park in Illinois

  • Rank in Illinois15th of 541 cities by records
  • Share of the state1% of Illinois's records
  • Specialties present25 or more taxonomy codes
  • Top three groups28.6% of all records
  • Clinical Social Worker rank4th of the 10 Illinois cities with the most

Compared with Illinois as a whole, Oak Park has 3× the state's share of acupuncturist records and 0.33× its share of student in an organized health care education/training program records.

Providers in Oak Park, alphabetically

  1. Tessa WilhelmBehavior Technician1083344618
  2. Caitlin WilkesSpeech-Language Pathologist1154059350
  3. Katherine Wilkie, MS, CCC-SLPSpeech-Language Pathologist1154756443
  4. Maia WilkinsBehavior Technician1750090023
  5. Dymond Wilks, RBTBehavior Technician1609614684
  6. Kristin Willard, MOTOccupational Therapist1831834464
  7. Amy Willen, CNMAdvanced Practice Midwife1194887356
  8. Mallory Willenbring, M.S., DTDevelopmental Therapist1063722734
  9. Arielle Willett, ATC, ITATSports Medicine (Physical Medicine & Rehabilitation) Physician1457854119
  10. Adedapo Williams, MDPsychiatry Physician1588759195
  11. Andrew Williams, M.D.Emergency Medicine Physician1275988156
  12. Ashley Williams, MSWSocial Worker1669141552
  13. Cara Williams, LPCCounselor1538007828
  14. Crystal Williams, LCSWClinical Social Worker1164973343
  15. Debra WilliamsBehavior Analyst1962092189
  16. Don Williams, MDInternal Medicine Physician1447288287
  17. Latwana WilliamsBehavior Analyst1164904116
  18. Rani Williams, LCSWClinical Social Worker1568848570
  19. Darrius Williams-Lee, LMTMassage Therapist1518774595
  20. Elizabeth Williamson, D,P,TPhysical Therapist1265470884
  21. Ford Willoughby, MA, LCPCProfessional Counselor1255460010
  22. Alexandra Wills, MS, LCPCMental Health Counselor1790145720
  23. Brittany Wils, AGPCNPGerontology Nurse Practitioner1730955816
  24. Aliyah Wilson, DDSPediatric Dentistry1972287480
  25. Ashley Wilson, LSWClinical Social Worker1801664065
  26. Kanyri WilsonBehavior Technician1508725144
  27. Taylor WilsonBehavior Technician1891635066
  28. Zainab Wilson, DDSDentist1548674740
  29. Jason Winkelmann, ND, DCChiropractor1912508334
  30. Joan Winston, LCSW, CRADCClinical Social Worker1013036110
  31. Johanna Winter-Harper, MFTMarriage & Family Therapist1689356644
  32. Antina WintersDriver1417774993
  33. Julia Wipf, DPTPhysical Therapist1326180183
  34. Wesley Wise, DDSGeneral Practice Dentistry1669686234
  35. Lisa Wister, OTOccupational Therapist1528216561
  36. Mary Withers, LCSW, LISWClinical Social Worker1194040329
  37. Heather Witthoff, MSW, LCSWClinical Social Worker1619034238
  38. Andrew Wojda, LCSWClinical Social Worker1376133504
  39. Kara Wolff, PHDClinical Psychologist1659651438
  40. Elizabeth Wollensak, D.O.Pediatrics Physician1508132507
  41. Seth Wollwage, L.C.S.W.Clinical Social Worker1154541464
  42. Brad Wolter, PTPhysical Therapist1245453737
  43. Michele Wolter, OTRLContractor1417047119
  44. Ka Ngan Wong, OTR/LOccupational Therapist1023383957
  45. Michelle WongMental Health Counselor1487382339
  46. Sabina Wong, MDFamily Medicine Physician1932307980
  47. Amy Wood, LMFTMarriage & Family Therapist1710543038
  48. Martrice WoodforkBehavior Technician1518666007
  49. Danielle WoodsBehavior Technician1811723976
  50. Sarita Woodson, DDSGeneral Practice Dentistry1255595666

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

Oak Park, Illinois appears in the CMS National Plan and Provider Enumeration System with 2,307 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 Oak Park - 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 Oak Park 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 Oak Park is weighted toward Clinical Social Worker (281 clinicians, followed by Behavior Technician with 240 and Mental Health Counselor with 138). 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, Oak Park reports roughly 18.4 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 Oak Park 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 Oak Park, IL?

There are 2,307 registered healthcare providers in Oak Park, IL, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Oak Park?

The most common specialties in Oak Park are Clinical Social Worker, Behavior Technician, Mental Health Counselor, Professional Counselor, Physical Therapist. Clinical Social Worker has the most providers with 281.

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.