Gayathri Sundaresan, M.D.
NPI 1114986650 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gayathri Sundaresan, M.D. is a Internal Medicine Physician provider in Chicago, IL (NPI 1114986650).
Provider details
- NPI number
- 1114986650
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
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
20 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 41 | 14 |
| Atorvastatin Calcium | 40 | 15 |
| Metoprolol Succinate | 28 | — |
| Amlodipine Besylate | 26 | — |
| Levothyroxine Sodium | 21 | — |
| Fluticasone Propionate | 16 | — |
| Tramadol Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$455 across 22 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
Registry dates
- Enumerated
- 2006-03-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gayathri Sundaresan's NPI number?
- Gayathri Sundaresan's National Provider Identifier (NPI) is 1114986650, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gayathri Sundaresan's specialty?
- Gayathri Sundaresan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gayathri Sundaresan located?
- Gayathri Sundaresan's practice location on file with NPPES is 3000 N Halsted St, Chicago, IL 60657-5188.
- What is Gayathri Sundaresan's phone number?
- The practice phone number listed in the NPPES registry for Gayathri Sundaresan is (773) 296-3456.
- Does Gayathri Sundaresan accept Medicare?
- Gayathri Sundaresan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gayathri Sundaresan's NPI active?
- Yes — Gayathri Sundaresan's NPI (1114986650) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.