NPPES file of Aug 9, 2026

Doctors and health care providers in Marengo, IL

61 individual NPPES records list a practice address in Marengo, 324th of 541 Illinois cities. The largest group is speech-language pathologist: 6, 10% of the city's records, against 4% across Illinois. Page 2 of 2.

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

The 8 largest groups in Marengo

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

Marengo in Illinois

  • Rank in Illinois324th of 541 cities by records
  • Share of the state<0.1% of Illinois's records
  • Specialties present21 taxonomy codes
  • Top three groups29.5% of all records

Providers in Marengo, alphabetically

  1. Erin Randall, MS,Athletic Trainer1306814819
  2. Javier Rodriguez, ODOptometrist1275056236
  3. Jon Russell, O.D.Optometrist1831177088
  4. Janelle Schultz, M.A., CCC-SLP/LSpeech-Language Pathologist1689811010
  5. Janet SchultzSchool Psychologist1417469644
  6. Elizabeth Siegfort, M.S., CCC/SLP/LSpeech-Language Pathologist1669489332
  7. Manfred StrohscheinDentist1669690400
  8. Michael Thomas, O.D.Optometrist1679539993
  9. Dawn TurnerBehavior Technician1194243196
  10. Indu Vaidya, MDInternal Medicine Physician1881610962
  11. Amy WhileProfessional Counselor1417423195

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

Marengo, Illinois appears in the CMS National Plan and Provider Enumeration System with 61 registered healthcare providers spanning 21 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Marengo - 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 Marengo 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 Marengo is weighted toward Speech-Language Pathologist (6 clinicians, followed by Physical Therapist with 6 and Pharmacist with 6). 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, Marengo reports roughly 0.5 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, Clinical Social Worker is the most prominent one with no provider currently listing a Marengo practice address, a coverage gap Marengo patients typically fill by traveling to a larger nearby hub.

For Marengo 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 Marengo, IL?

There are 61 registered healthcare providers in Marengo, IL, covering 21 specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Marengo?

The most common specialties in Marengo are Speech-Language Pathologist, Physical Therapist, Pharmacist, Professional Counselor, Optometrist. Speech-Language Pathologist has the most providers with 6.

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.