Vignesh Chidambaram, MD, MPH
NPI 1003496449 · Cardiovascular Disease Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Vignesh Chidambaram, MD, MPH is a Cardiovascular Disease Physician provider in Chicago, IL (NPI 1003496449).
Provider details
- NPI number
- 1003496449
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 30 | 16 |
| Gabapentin | 27 | — |
| Metoprolol Succinate | 25 | — |
| Losartan Potassium | 25 | — |
| Apixabanbrand: Eliquis | 24 | — |
| Empagliflozinbrand: Jardiance | 24 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$163 across 4 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
- 2021-04-09
- Last updated
- 2024-08-05
- Certified
- 2024-08-05
Frequently asked questions
- What is Vignesh Chidambaram's NPI number?
- Vignesh Chidambaram's National Provider Identifier (NPI) is 1003496449, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vignesh Chidambaram's specialty?
- Vignesh Chidambaram is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Vignesh Chidambaram located?
- Vignesh Chidambaram's practice location on file with NPPES is 1969 W Ogden Ave, Chicago, IL 60612-3765.
- What is Vignesh Chidambaram's phone number?
- The practice phone number listed in the NPPES registry for Vignesh Chidambaram is (312) 864-6000.
- Does Vignesh Chidambaram accept Medicare?
- Vignesh Chidambaram is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Vignesh Chidambaram's NPI active?
- Yes — Vignesh Chidambaram's NPI (1003496449) is active in the NPPES registry as of the last update on 2024-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.