Dr. Nicholas Kiran Singh Grewal, MD
- Part D claims, 2024
- 82
- Hospital affiliations
- 1
- Industry payments
- $472
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 1653 West Congress Parkway, Chicago, IL 60612
- Practice phone
- Call (312) 942-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Grewal'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. Nicholas Kiran Singh Grewal is a cardiologist in Chicago, Illinois
Dr. Grewal practices at Rush University Medical Center in Chicago, Illinois, part of Rush System for Health.
Dr. Grewal's NPI, 1962089110, was assigned on March 25, 2021. Dr. Grewal holds Illinois license 036166905.
- NPI
- 1962089110NPI Registry (opens in a new tab)
- NPI enumeration date
- March 25, 2021
- NPI status
- Active
- Practice phone
- (312) 942-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Nicholas Kiran Singh Grewal practices at Rush University Medical Center in Chicago, Illinois
Dr. Grewal's primary practice is Rush University Medical Center, at 1653 West Congress Parkway, Chicago, IL 60612 in Cook County. The practice phone is (312) 942-5000.
- Rush University Medical Center1653 West Congress Parkway, Chicago, IL 60612 · Cook CountyPhone(312) 942-5000
Source: Dmand AI Affiliation Data
Dr. Nicholas Kiran Singh Grewal is affiliated with 1 site of care
Dr. Grewal's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nicholas Kiran Singh Grewal's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grewal practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rush University Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Rush System for Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nicholas Kiran Singh Grewal is one of 908 cardiologists in Illinois
Cardiovascular disease is Dr. Grewal's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Grewal is licensed in Illinois.
Specialties and state licenses
- Cardiovascular disease, IllinoisPrimary
Cardiologists near Dr. Grewal
Counts of cardiologists 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. Nicholas Kiran Singh Grewal's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Grewal's median patient age at 73, with 50% women.
Dr. Grewal's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Nicholas Kiran Singh Grewal wrote 82 Medicare Part D claims in 2024
In 2024, Dr. Grewal wrote 82 Medicare Part D claims for 25 patients. 84% of them were for generic drugs.
Dr. Grewal's Part D claims by kind of drug, 2024
- Generic69 claims84%
- Brand-name13 claims16%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Nicholas Kiran Singh Grewal received $472 in industry payments from 2024 to 2025
CMS Open Payments shows 6 general payments to Dr. Grewal from 5 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 55% of the total. Medtronic, Inc. paid the most, $213.
General payments to Dr. Grewal by program year, 2024 to 2025
General payments to Dr. Grewal by kind, 2024 to 2025
- Food and beverage$25955%
- Education$21345%
Companies that paid Dr. Grewal the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nicholas Kiran Singh Grewal'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| 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. Nicholas Kiran Singh Grewal
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. Nicholas Kiran Singh Grewal's NPI number?
Dr. Nicholas Kiran Singh Grewal's NPI number is 1962089110. It was assigned on March 25, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicholas Kiran Singh Grewal?
Dr. Nicholas Kiran Singh Grewal is a cardiologist in Chicago, Illinois. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Nicholas Kiran Singh Grewal practice?
Dr. Grewal practices at 1653 West Congress Parkway, Chicago, IL 60612. Dr. Grewal's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health.
What is Dr. Nicholas Kiran Singh Grewal's office phone number?
The practice phone on file for Dr. Grewal is (312) 942-5000.
What is Dr. Nicholas Kiran Singh Grewal's medical license number?
Dr. Grewal holds Illinois license 036166905.
Which hospitals is Dr. Nicholas Kiran Singh Grewal affiliated with?
Dr. Grewal practices at Rush University Medical Center in Chicago, Illinois.
Has Dr. Nicholas Kiran Singh Grewal received payments from drug or device companies?
CMS Open Payments shows $472 in general payments to Dr. Grewal from 5 companies from 2024 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. Nicholas Kiran Singh Grewal been practicing?
Dr. Grewal's NPI was assigned in 2021.
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