Dr. Vidhya Viswanathan, MD
- Hospital affiliations
- 1
- Industry payments
- $8,191
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 4220 W 95th St, Oak Lawn, IL 60453
- Practice phone
- Call (847) 390-5900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Advocate Medical Group
Oak Lawn, Illinois
Find Dr. Viswanathan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Vidhya Viswanathan is a pediatric endocrinology physician in Oak Lawn, Illinois
Dr. Viswanathan practices at Advocate Medical Group in Oak Lawn, Illinois.
Dr. Viswanathan's NPI, 1588874069, was assigned on May 23, 2007. Dr. Viswanathan holds Illinois license 036128085.
- NPI
- 1588874069NPI Registry (opens in a new tab)
- NPI enumeration date
- May 23, 2007
- NPI status
- Active
- Practice phone
- (847) 390-5900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Vidhya Viswanathan practices at Advocate Medical Group in Oak Lawn, Illinois
Dr. Viswanathan's primary practice is Advocate Medical Group, at 4220 W 95th St, Oak Lawn, IL 60453 in Cook County. The practice phone is (847) 390-5900.
- Advocate Medical Group4220 W 95th St, Oak Lawn, IL 60453 · Cook CountyPhone(847) 390-5900
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Vidhya Viswanathan is affiliated with 3 sites of care and 2 medical groups
Dr. Viswanathan's primary practice is Advocate Medical Group in Oak Lawn, Illinois. Dr. Viswanathan is also affiliated with Advocate Christ Medical Center. The medical group on file is Dreyer Medical Clinic (Advocate Medical Group). Dmand AI also links Dr. Viswanathan to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Vidhya Viswanathan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Viswanathan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Advocate Medical Group | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Vidhya Viswanathan is one of 71 pediatric endocrinology physicians in Illinois
Pediatric endocrinology is Dr. Viswanathan's primary specialty in the NPI Registry, under taxonomy code 2080P0205X. Dr. Viswanathan is licensed in Illinois.
Specialties and state licenses
- Pediatric endocrinology, IllinoisPrimary
Pediatric endocrinology physicians near Dr. Viswanathan
Counts of pediatric endocrinology physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Vidhya Viswanathan's patients have a median age of 15
Across all payers, Dmand AI patient panel data puts Dr. Viswanathan's median patient age at 15, with 53% women.
Dr. Viswanathan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 15
Patient panel by sex, all payers
- Women53%
- Men47%
Source: Dmand AI Patient Panel Data
Dr. Vidhya Viswanathan received $8,191 in industry payments from 2016 to 2022
CMS Open Payments shows 85 general payments to Dr. Viswanathan from 18 drug and device companies from 2016 to 2022. Consulting fees make up the largest share, 43% of the total. Insulet Corporation paid the most, $4,828.
General payments to Dr. Viswanathan by program year, 2016 to 2022
General payments to Dr. Viswanathan by kind, 2016 to 2022
- Consulting fees$3,55143%
- Food and beverage$1,95124%
- Honoraria$1,50018%
- Travel and lodging$1,02713%
- Education$1612%
Companies that paid Dr. Viswanathan the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Vidhya Viswanathan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Vidhya Viswanathan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Vidhya Viswanathan's NPI number?
Dr. Vidhya Viswanathan's NPI number is 1588874069. It was assigned on May 23, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Vidhya Viswanathan?
Dr. Vidhya Viswanathan is a pediatric endocrinology physician in Oak Lawn, Illinois. The primary specialty in the NPI Registry is Pediatric Endocrinology Physician (taxonomy code 2080P0205X).
Where does Dr. Vidhya Viswanathan practice?
Dr. Viswanathan practices at 4220 W 95th St, Oak Lawn, IL 60453. Dr. Viswanathan's primary practice is Advocate Medical Group in Oak Lawn, Illinois. Dmand AI also links Dr. Viswanathan to 1 group practice or clinic and 1 medical group.
What is Dr. Vidhya Viswanathan's office phone number?
The practice phone on file for Dr. Viswanathan is (847) 390-5900.
What is Dr. Vidhya Viswanathan's medical license number?
Dr. Viswanathan holds Illinois license 036128085.
Which hospitals is Dr. Vidhya Viswanathan affiliated with?
Dr. Viswanathan is affiliated with Advocate Christ Medical Center.
What medical group is Dr. Vidhya Viswanathan part of?
Dr. Viswanathan is linked to Dreyer Medical Clinic (Advocate Medical Group). Dmand AI links Dr. Viswanathan to 1 more medical group.
Has Dr. Vidhya Viswanathan received payments from drug or device companies?
CMS Open Payments shows $8,191 in general payments to Dr. Viswanathan from 18 companies from 2016 to 2022. The largest total came from Insulet Corporation.
How long has Dr. Vidhya Viswanathan been practicing?
Dr. Viswanathan's NPI was assigned in 2007.
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