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.

IndividualActiveAccepts Medicare

Vignesh Chidambaram, MD, MPH

NPI 1003496449 · Cardiovascular Disease Physician · Chicago, IL

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

Practice location

1969 W Ogden Ave

Chicago, IL 60612-3765

Phone: (312) 864-6000

Street-level locationGet directions

More IL providers

Mailing address

106 S Ridgeland Ave Apt 402

Oak Park, IL 60302-4617

Specialties & taxonomies

Cardiovascular Disease PhysicianPrimary207RC0000XLicense 036.170506 (IL)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care

Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(62/100 index)

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.

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.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider prescribes (Medicare Part D)

Transparency — industry payments