2026 data CMS NPPES NUCC Taxonomy

Doctors in Alton, IL

Active healthcare providers in Alton sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

1,091
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Counselor
Top specialty
170 providers
Illinois
State
IL

Where this city sits in the corpus

Alton ranks 39th among 540 Illinois cities by CMS provider count, holding 0.5% of the state's NPIs, led by Counselor.

1,091
NPPES providers in city
39th
of 540 IL cities
0.5%
of Illinois providers
29.3%
in top 3 specialties

Alton ranks #3 of 10 Illinois cities for Counselor.

Where Alton ranks among Illinois cities

Provider count vs every Illinois city in CMS NPPES (540 cities)

1,091 Top 7% higher than 93% of 540 cities

0–100: 265 cities (49%). Below this entry. 100–200: 95 cities (18%). Below this entry. 200–300: 44 cities (8%). Below this entry. 300–400: 29 cities (5%). Below this entry. 400–500: 15 cities (3%). Below this entry. 500–600: 16 cities (3%). Below this entry. 600–700: 9 cities (2%). Below this entry. 700–800: 9 cities (2%). Below this entry. 800+: 58 cities (11%). This entry sits in this band. This city 0 800+ Illinois cities (providers), bucketed by value

Each bar is a band; taller bars hold more cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS National Plan & Provider Enumeration System (NPPES) · 2026

Specialty mix in Alton

Share of the city's NPPES registrations by NUCC taxonomy

providers

What this shows Counselor is the largest specialty (170 providers, 15.6% of the city), followed by Mental Health Counselor.

Source CMS NPPES · city_top_specialties As of 2026

City vs state specialty index

Specialties Alton has more, and fewer, of than Illinois average

Each multiple is this city's share of a specialty divided by that specialty's average share across Illinois , Alton over-indexes counselor at 8.8× the state average and under-indexes speech-language pathologist at 0.69×. This reflects local practice structure, not care quality.

More common here than Illinois average

Less common here than Illinois average

How to read this directory & data limitations

Alton, Illinois appears in the CMS National Plan and Provider Enumeration System with 1,091 registered healthcare providers spanning 20 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Alton - 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 Alton 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 2023 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Alton is weighted toward Counselor (170 clinicians, followed by Mental Health Counselor with 97 and Clinical Social Worker with 53). 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, Alton reports roughly 8.7 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 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 Alton practice address, a coverage gap Alton patients typically fill by traveling to a larger nearby hub.

For Alton 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.

Which specialties are most common in Alton

Healthcare Providers (Page 18)

Name
Mallory Scroggins, MOT
Occupational Therapist
Duron Scruggs
Attendant Care Provider
Neilah Scruggs, MA
Counselor
Danielle Sears, M.S., CCC-SLP
Speech-Language Pathologist
Carrie Seehausen, MA, LCPC
Professional Counselor
James Segrist, M.D.
Orthopaedic Surgery Physician
Lorraine Seiffert, ACNP
Acute Care Nurse Practitioner
Stacy Seitz, LCPC
Mental Health Counselor
Da Hea Seo, MD
Internal Medicine Physician
Winnie Shaba, MD
Hospitalist Physician
Mohini Shah, OTR/L
Occupational Therapist
Parth Shah, MD
Internal Medicine Physician
Sudha Shah
General Practice Physician
Wei Shao, BSW
Counselor
Mary Sharrow, LCSW
Clinical Social Worker
Erica Shaw, APN
Registered Nurse
Jacob Shaw, A.S, A.A.S, CPT
Health Educator
Madalyn Shaw
Physical Therapist
Valarie Shaw
Interpreter
Joseph Shea, DDS, MS
Prosthodontics
Danny Shehata, MD
Family Medicine Physician
Elizabeth Sheppard, M.S., L.C.P.C.
Professional Counselor
Rachel Sheppard
Occupational Therapy Assistant
Jacob Sherer, D.C.
Chiropractor
Susan Sherman, M.D
Psychiatry Physician
Karna Sherwood, MD
Neurology Physician
Angela Shewmake, AAS
Counselor
Dawn Shewmaker, MSW
Counselor
Stanley Sidwell, MD
Internal Medicine Physician
Robert Siegel, MD
Internal Medicine Physician
Carol Sievers
Nutrition Education Nutritionist
Lyndsi Sievers, PA-C
Physician Assistant
Samantha Simms
Counselor
Jennifer Singleton, APRN
Psychiatric/Mental Health Registered Nurse
Chandni Sinha, MD
Internal Medicine Physician
Jonathan Smiley, D.M.D
General Practice Dentistry
Ashley Smith, BS
Counselor
Kate Smith, MPAS
Physician Assistant
Kathleen Smith, MA,LPC
Professional Counselor
Katlyn Smith, PA-C
Physician Assistant
Kristy Smith
Mental Health Counselor
Natalie Smith, M. ED., LPC, NCC
Professional Counselor
Nathan Smith, MA
Counselor
Rebecca Smith
Mental Health Counselor
Shamika Smith, MS
Case Manager/Care Coordinator
Stephanie Smith, FNP-C
Family Nurse Practitioner
Rebecca Snow-Grimm
Mental Health Counselor
Colin Solomon, APN
Nurse Practitioner
Thomas Sotiropoulos, D.D.S.
General Practice Dentistry
Jennifer Sparks
Counselor

Nearby Cities in Illinois

Other Illinois cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Alton, IL?
There are 1,091 registered healthcare providers in Alton, IL, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Alton?
The most common specialties in Alton are Counselor, Mental Health Counselor, Clinical Social Worker, Dentist, Physical Therapist. Counselor has the most providers with 170.
Related guides

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.