Robert Hargan, M.D.
NPI 1962591404 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Hargan, M.D. is a Internal Medicine Physician provider in Chicago, IL (NPI 1962591404).
Provider details
- NPI number
- 1962591404
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0360941631 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 157 | 19 |
| Atorvastatin Calcium | 102 | 27 |
| Emtricitabine/Tenofov Alafenambrand: Descovy | 86 | — |
| Darunavir/Cobicistatbrand: Prezcobix | 83 | — |
| Raltegravir Potassiumbrand: Isentress | 41 | — |
| Bupropion Hclbrand: Bupropion Xl | 40 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,669 across 78 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 2835 N Sheffield AveSuite 500Chicago, IL 60657-5081Phone: (773) 296-2400Fax: (773) 296-1097
Registry dates
- Enumerated
- 2006-10-12
- Last updated
- 2021-07-29
- Certified
- 2021-07-29
Frequently asked questions
- What is Robert Hargan's NPI number?
- Robert Hargan's National Provider Identifier (NPI) is 1962591404, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Hargan's specialty?
- Robert Hargan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Hargan located?
- Robert Hargan's practice location on file with NPPES is 3245 N Halsted St, Chicago, IL 60657-3419.
- What is Robert Hargan's phone number?
- The practice phone number listed in the NPPES registry for Robert Hargan is (773) 388-1600.
- Does Robert Hargan accept Medicare?
- Robert Hargan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Hargan's NPI active?
- Yes — Robert Hargan's NPI (1962591404) is active in the NPPES registry as of the last update on 2021-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.