Doctors and health care providers in Naperville, IL
4,634 individual NPPES records list a practice address in Naperville, 3rd of 541 Illinois cities. The largest group is professional counselor: 329, 7% of the city's records, against 4% across Illinois. Page 69 of 93.
The 8 largest groups in Naperville
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Naperville in Illinois
- Rank in Illinois3rd of 541 cities by records
- Share of the state1.9% of Illinois's records
- Specialties present25 or more taxonomy codes
- Top three groups19.4% of all records
- Professional Counselor rank2nd of the 10 Illinois cities with the most
Compared with Illinois as a whole, Naperville has 2.1× the state's share of behavior analyst records and 0.54× its share of internal medicine physician records.
Providers in Naperville, alphabetically
- Cyiara RajamanickamBehavior Technician1639918550
- Zainab Raji Osobu, MDEmergency Medicine Physician1720432081
- Anand Ramanathan, MDInterventional Cardiology Physician1306892229
- Brittany Ramenani, LCSWClinical Social Worker1427724442
- Dalilah RamirezBehavior Technician1326900713
- Evelyn RamirezCounselor1205574001
- Katrina RamirezMental Health Counselor1306220074
- Lisully Ramirez, LSWClinical Social Worker1033924261
- Mark RamirezProfessional Counselor1356337612
- Zenyazlen RamirezBehavior Technician1619831823
- Jhoanna Ramiro, PTAPhysical Therapy Assistant1962170118
- Joanna Mari Ramos, PHARMDPharmacist1861165748
- Monica Ramos, M.D.Neonatal-Perinatal Medicine Physician1831483429
- Sydney RamsbottomMental Health Counselor1013738640
- Roy Ramsey, M.D.Diagnostic Radiology Physician1619203940
- Kanchan RanaPhysical Therapist1699212423
- Snaha Rana, ODOptometrist1801552054
- Sangita Rangala, M.D.Emergency Medicine Physician1023167327
- Maria RangelDoula1356118723
- Heather Ranneklev, LCSWClinical Social Worker1609638287
- Jennifer RansteadOccupational Therapist1275823189
- Shoaib Rao, MDPediatrics Physician1871089441
- Sujata Raol, PHARMDPharmacist1366710568
- Sean Rardin, M.D.Family Medicine Physician1225020076
- Adam Ratner, LCSWCounselor1023426848
- Megan Raupp, MS, RD, LDNRegistered Dietitian1316496516
- Tennile RayMarriage & Family Therapist1164774170
- Arwa RazaAnesthesiology Physician1093398729
- Asma RazikClinical Social Worker1093511602
- Gabriela RealzolaOccupational Therapist1477878528
- Pamela Rebeck, PHDClinical Psychologist1497740070
- Bryan Rebhan, LCPCProfessional Counselor1871963181
- Prerana Reddy, M.D.Hospitalist Physician1114453446
- Shantan Reddy, MD MPHOphthalmology Physician1881724995
- Shruthi Reddy, M.D.Dermatology Physician1235364092
- Amy Reeb, NP-CFamily Nurse Practitioner1033549894
- Chara Reed, PHARM DPharmacist1457636011
- Sara Reed, L.C.S.WClinical Social Worker1124548441
- Grace Reetz, PA-CPhysician Assistant1215771977
- Cassie Reeves, ODOptometrist1508394008
- Anthony Reganato, DDSDentist1366679078
- Amanpreet Rehal, DPTPhysical Therapist1225749559
- Falak RehanPharmacist1568030971
- Ruth Anne Rehfeldt, BCBA-D, PHDBehavior Analyst1225631690
- David Rehn, M.D.Anesthesiology Physician1194772582
- Michelle Reich, RDN, CDCESRegistered Dietitian1245951003
- Michael Reicherts, MDPediatrics Physician1679536007
- Richard Reid, DDSDentist1922138544
- John Reifenstuhl, LCSWClinical Social Worker1174636211
- John Reilly, M.D.Orthopaedic Surgery Physician1396731014
The largest Illinois cities
- Chicago63,379
- Springfield4,997
- Peoria4,621
- Evanston4,013
- Rockford3,893
How to read this directory
Naperville, Illinois appears in the CMS National Plan and Provider Enumeration System with 4,634 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 Naperville - 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 Naperville 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 Naperville is weighted toward Professional Counselor (329 clinicians, followed by Clinical Social Worker with 307 and Physical Therapist with 263). 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, Naperville reports roughly 36.9 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 Naperville practice address, a coverage gap Naperville patients typically fill by traveling to a larger nearby hub.
For Naperville 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 Naperville, IL?
There are 4,634 registered healthcare providers in Naperville, IL, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Naperville?
The most common specialties in Naperville are Professional Counselor, Clinical Social Worker, Physical Therapist, Behavior Technician, Speech-Language Pathologist. Professional Counselor has the most providers with 329.
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.