Robert Todd Hargan, M.D.
Internal Medicine Physician · Chicago, IL
Robert Todd Hargan, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1962591404, issued on Oct 12, 2006. Check the license (Illinois 0360941631, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Robert Todd Hargan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0360941631 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3245 N Halsted St, Chicago, IL 60657
- Phone
- (773) 388-1600
- Enumerated
- Oct 12, 2006
- Record last updated
- Jul 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 0360941631 IL
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 3245 N Halsted St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abbey Baus, PAPhysician Assistant1477911782
- Brian Boholst, M.D.Internal Medicine Physician1235181959
- Liz FrancoFamily Nurse Practitioner1992354195
- Hannah Jeffrey, PA-CPhysician Assistant1417672643
- Bianca Jenkins, MDFamily Medicine Physician1568099380
- Zachary Long, MDFamily Medicine Physician1669977104
Verify Robert Todd Hargan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 0360941631Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,464 Medicare Part D claims for 72 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Biktarvy157 claims
- Atorvastatin Calcium102 claims
- Descovy86 claims
- Prezcobix83 claims
- Isentress41 claims
- Bupropion Xl40 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,669.22
78 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Robert Todd Hargan among 7,238 internal medicine physician records in Illinois
Robert Todd Hargan, M.D. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2021 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2,867 internal medicine physician records list a practice address in Chicago
They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Chicago → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bruce Blacker, M.D.Chicago, IL 606571982603924
- Brian Boholst, M.D.Chicago, IL 606571235181959
- Edgar Borda, MDChicago, IL 606571891782447
- Harold EulienChicago, IL 606571700877222
- Lisa Greising, M.D.Chicago, IL 606571578523155
- Michael Grendon, M.D.Chicago, IL 606571922007962
- Catherine Kallal, MDChicago, IL 606571407801665
- Alam Khan, M.D.Chicago, IL 606571316946288
Common questions
What is Robert Todd Hargan, M.D.'s NPI number?
Robert Todd Hargan, M.D.'s National Provider Identifier (NPI) is 1962591404, issued on Oct 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Todd Hargan, M.D. located?
The NPPES record lists a practice address at 3245 N Halsted St, Chicago, IL, 60657. Phone: (773) 388-1600. Providers update this record themselves, so call before visiting.
How can I verify Robert Todd Hargan, M.D.'s license?
NPPES lists Illinois license number 0360941631, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Todd Hargan, M.D. prescribe under Medicare Part D?
In 2024, Robert Todd Hargan, M.D. had 1,464 Medicare Part D claims for 72 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
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.