NPPES file of Aug 9, 2026

Doctors and health care providers in Oak Forest, IL

308 individual NPPES records list a practice address in Oak Forest, 137th of 541 Illinois cities. The largest group is speech-language pathologist: 43, 14% of the city's records, against 4% across Illinois. Page 7 of 7.

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

The 8 largest groups in Oak Forest

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

Oak Forest in Illinois

  • Rank in Illinois137th of 541 cities by records
  • Share of the state0.1% of Illinois's records
  • Specialties present25 or more taxonomy codes
  • Top three groups27.6% of all records

Compared with Illinois as a whole, Oak Forest has 3.3× the state's share of speech-language pathologist records and 0.73× its share of mental health counselor records.

Providers in Oak Forest, alphabetically

  1. Robert Wirtz, D.D.S.Orthodontics and Dentofacial Orthopedics Dentistry1992875801
  2. Joseph Eddie Woo, M.D.Internal Medicine Physician1942423009
  3. Ellen Woodham-Johnson, LCSWClinical Social Worker1902070097
  4. Margaret Woodson, P.T.Physical Therapist1134245129
  5. Kristina Wynn, LCSW,CADC,RNAddiction (Substance Use Disorder) Counselor1356436653
  6. Sameena Ziauddin, MDInternal Medicine Physician1437218732
  7. Nancy Zubek, PTPhysical Therapist1780740696
  8. Thomas Zubinas, DDSGeneral Practice Dentistry1659432441

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 Forest, Illinois appears in the CMS National Plan and Provider Enumeration System with 308 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 Forest - 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 Forest 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 Forest is weighted toward Speech-Language Pathologist (43 clinicians, followed by Pharmacist with 23 and Professional Counselor with 19). 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 Forest reports roughly 2.5 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 Illinois's most common specialties, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Oak Forest practice address, a coverage gap Oak Forest patients typically fill by traveling to a larger nearby hub.

For Oak Forest 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 Forest, IL?

There are 308 registered healthcare providers in Oak Forest, IL, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Oak Forest?

The most common specialties in Oak Forest are Speech-Language Pathologist, Pharmacist, Professional Counselor, Internal Medicine Physician, Physical Therapist. Speech-Language Pathologist has the most providers with 43.

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.