Internal Medicine in Naperville, IL
248 active Internal Medicine providers practice in Naperville, Illinois according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.
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| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1912963919 | Academic Endocrine Metabolism & Nutrition | Organization | Endocrinology, Diabetes & Metabolism Physician | Naperville, IL |
| 1588630669 | Adam Klugman | Individual | Gastroenterology Physician | Naperville, IL |
| 1881888485 | Advanced Spine & Joint Rehabilitation Service Corp | Organization | Endocrinology, Diabetes & Metabolism Physician | Naperville, IL |
| 1386698694 | Alan Brown | Individual | Cardiovascular Disease Physician | Naperville, IL |
| 1083691349 | Alexander Hantel | Individual | Hematology & Oncology Physician | Naperville, IL |
| 1871684415 | Alicia Lee | Individual | Internal Medicine Physician | Naperville, IL |
| 1679753164 | Aman Ali | Individual | Cardiovascular Disease Physician | Naperville, IL |
| 1306892229 | Anand Ramanathan | Individual | Interventional Cardiology Physician | Naperville, IL |
| 1528012846 | Ann Davis | Individual | Cardiovascular Disease Physician | Naperville, IL |
| 1740249259 | Arun Kumar | Individual | Internal Medicine Physician | Naperville, IL |
| 1982698841 | Barbara Emery-Stolzer | Individual | Internal Medicine Physician | Naperville, IL |
| 1982753653 | Barry Fischer | Individual | Internal Medicine Physician | Naperville, IL |
| 1003019894 | Boling Medical LLC | Organization | Internal Medicine Physician | Naperville, IL |
| 1295702439 | Brian O'Leary | Individual | Internal Medicine Physician | Naperville, IL |
| 1891805263 | Brian Schmitt | Individual | Internal Medicine Physician | Naperville, IL |
| 1972665990 | Cardiovascular Consultants of Naperville, Ltd. | Organization | Cardiovascular Disease Physician | Naperville, IL |
| 1538128517 | Carol Weinberg | Individual | Internal Medicine Physician | Naperville, IL |
| 1265407076 | Chris Geannopoulos | Individual | Cardiovascular Disease Physician | Naperville, IL |
| 1265514962 | Christine Amstadt | Individual | Internal Medicine Physician | Naperville, IL |
| 1255396511 | Cicily Jones | Individual | Internal Medicine Physician | Naperville, IL |
| 1457340267 | Constantine Wonais | Individual | Internal Medicine Physician | Naperville, IL |
| 1407046089 | Cynthia Manfredi | Individual | Internal Medicine Physician | Naperville, IL |
| 1164402244 | Darren Kastin | Individual | Gastroenterology Physician | Naperville, IL |
| 1578579850 | David Mcelligott | Individual | Pulmonary Disease Physician | Naperville, IL |
| 1538166210 | David Schlieben | Individual | Nephrology Physician | Naperville, IL |
| 1588710933 | David Yang | Individual | Cardiovascular Disease Physician | Naperville, IL |
| 1003857103 | Dinesh Jain | Individual | Gastroenterology Physician | Naperville, IL |
| 1316913809 | Donald Hoscheit | Individual | Gastroenterology Physician | Naperville, IL |
| 1144270976 | Douglas Tran | Individual | Internal Medicine Physician | Naperville, IL |
| 1891743001 | Dr Carol R Weinberg MD Sc | Organization | Internal Medicine Physician | Naperville, IL |
| 1649386400 | Edward Cardiovascular Institute | Organization | Cardiovascular Disease Physician | Naperville, IL |
| 1790735744 | Edward Health Ventures | Organization | Internal Medicine Physician | Naperville, IL |
| 1811012255 | Edward Health Ventures | Organization | Hematology & Oncology Physician | Naperville, IL |
| 1568473502 | Edward Hospital | Organization | Cardiovascular Disease Physician | Naperville, IL |
| 1720099922 | Edward Hospital | Organization | Pulmonary Disease Physician | Naperville, IL |
| 1659336063 | Eric Munn | Individual | Rheumatology Physician | Naperville, IL |
| 1487663126 | Erickson Health Medical Group of Illinois PC | Organization | Internal Medicine Physician | Naperville, IL |
| 1538182019 | Evans Pappas | Individual | Cardiovascular Disease Physician | Naperville, IL |
| 1184741951 | Falguni Vasa | Individual | Endocrinology, Diabetes & Metabolism Physician | Naperville, IL |
| 1093810491 | Fariborze Barhamand | Individual | Hematology & Oncology Physician | Naperville, IL |
| 1841484961 | Farzan Mahmood | Individual | Rheumatology Physician | Naperville, IL |
| 1902947781 | Firooz Emami MD, Sc | Organization | Internal Medicine Physician | Naperville, IL |
| 1063406924 | Francine Long | Individual | Internal Medicine Physician | Naperville, IL |
| 1437379435 | Francis Lichon | Individual | Rheumatology Physician | Naperville, IL |
| 1649387051 | George Morgan | Individual | Gastroenterology Physician | Naperville, IL |
| 1023078631 | Gregory Trevino | Individual | Internal Medicine Physician | Naperville, IL |
| 1922057926 | Hardeep Arora | Individual | Internal Medicine Physician | Naperville, IL |
| 1356318349 | Harold Mozwecz | Individual | Gastroenterology Physician | Naperville, IL |
| 1144373457 | Hassan Pervez | Individual | Hematology & Oncology Physician | Naperville, IL |
| 1386749265 | Hematology-Oncology Consultants, Ltd. | Organization | Hematology & Oncology Physician | Naperville, IL |
Frequently asked questions
How many Internal Medicine providers are in Naperville, IL?
The latest NPPES snapshot lists 248 active Internal Medicine providers with a practice address in Naperville, Illinois.
How do I check a Internal Medicine provider's NPI in Naperville?
Open a profile below to see the NPI number, taxonomy code, and practice address, then verify against the official NPPES registry — every profile links directly to the CMS record.
Source: CMS NPPES (public data). Snapshot 2026-07-09.