ApoptosisCell ProliferationEpithelial Cells
Dr. Nilay Kumar, MD, MPH
NPI1427123702PAC ID4789757071
- Medicare services, 2024
- 1,163
- Medicare patients, 2024
- 464
- Part D claims, 2024
- 1,180
- Publications
- 52
- Hospital affiliations
- 5
- Practice address
- 2900 W Oklahoma Ave, Milwaukee, WI 53215
- Practice phone
- Call (414) 649-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Kumar'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. Nilay Kumar is a gastroenterologist in Milwaukee, Wisconsin
Dr. Kumar practices at Aurora St. Luke's Medical Center in Milwaukee, Wisconsin, part of Advocate Health.
Dr. Kumar's NPI, 1427123702, was assigned on November 21, 2006. Dr. Kumar holds Wisconsin license 49637.
NPI and contact details
- NPI
- 1427123702NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789757071
- NPI enumeration date
- November 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (414) 649-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nilay Kumar practices at Aurora St. Luke's Medical Center in Milwaukee, Wisconsin
Dr. Kumar's primary practice is Aurora St. Luke's Medical Center, at 2900 W Oklahoma Ave, Milwaukee, WI 53215 in Milwaukee County. The practice phone is (414) 649-6000.
- Aurora St. Luke's Medical Center2900 W Oklahoma Ave, Milwaukee, WI 53215 · Milwaukee CountyPhone(414) 649-6000
Source: Dmand AI Affiliation Data
Dr. Nilay Kumar is affiliated with 9 sites of care and 3 medical groups
Dr. Kumar's primary practice is Aurora St. Luke's Medical Center in Milwaukee, Wisconsin, part of Advocate Health. Dr. Kumar is also affiliated with Aurora West Allis Medical Center. The medical group on file is Aurora Medical Group. Dmand AI also links Dr. Kumar to 3 more hospitals, 3 group practices and clinics, 2 medical groups and 1 therapy and rehab clinic, each named with a free account.
Aurora West Allis Medical CenterAurora Medical Group3 hospitalsNames with a free account3 group practices and clinicsNames with a free account2 medical groupsNames with a free account1 therapy and rehab clinicName with a free account
See all 12 affiliations for Dr. KumarSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nilay Kumar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kumar practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aurora St. Luke's Medical Center | Available with a free account |
| +8 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Kumar practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Advocate Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nilay Kumar is one of 277 gastroenterologists in Wisconsin
Gastroenterology is Dr. Kumar's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Kumar is licensed in Wisconsin.
Specialties and state licenses
- Gastroenterology, WisconsinPrimary
Gastroenterologists near Dr. Kumar
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
277gastroenterologists in Wisconsin70gastroenterologists in Milwaukee10gastroenterologists at Aurora St. Luke's Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Nilay Kumar billed Medicare for 1,163 services in 2024
CMS data shows 1,163 Medicare services from Dr. Kumar across 14 procedure codes in 2024, for 464 Medicare patients. Medicare paid $105,251 for them.
Medicare services, 20241,163
Medicare patients464
Paid by Medicare$105,251
Procedure codes14
Dr. Kumar's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8672024: 78210%
- Surgery
- 2023: 4332024: 36815%
- Other services
- 2023: 02024: 13
- Tests and treatments
- 2023: 122024: 0100%
Where Dr. Kumar's Medicare services took place, 2024
- In an office615%
- In a facility1,10295%
Dr. Kumar compared with the Wisconsin median for gastroenterologists, 2024
- Dr. Kumar
- Wisconsin median
- Medicare services
- 1,163vs 3293.5 times
- Medicare patients
- 464vs 25880% above
- Part D claims
- 1,054vs 4292.5 times
Medians across 278 gastroenterologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Kumar's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Kumar?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kumar and other gastroenterologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nilay Kumar treated 464 Medicare patients in 2024, average age 72
CMS counts 464 Medicare patients who saw Dr. Kumar in 2024. The largest group is 65 to 74, with 201 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 2.65, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Kumar's median patient age at 66, with 51% women.
Medicare patients, 2024464
Average age72
Average risk score2.65
Also on Medicaid29%
Dr. Kumar's Medicare patients by age, 2024
Dr. Kumar's Medicare patients by sex, 2024
- Women24653%
- Men21847%
Chronic conditions among Dr. Kumar's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Chronic kidney disease48%
- Ischemic heart disease46%
- Diabetes42%
- Heart failure40%
- Anxiety37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kumar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nilay Kumar wrote 1,180 Medicare Part D claims in 2024
In 2024, Dr. Kumar wrote 1,180 Medicare Part D claims for 650 patients. 72% of them were for generic drugs. CMS names the drug for 1,054 of them, across 13 drugs with 11 or more claims each, at $45,834 in total drug cost. In 2023, CMS named 931 claims across 11 drugs.
Part D claims, 20241,180
Drugs named by CMS13
Total drug cost$45,834
Part D patients650
Dr. Kumar's Part D claims by kind of drug, 2024
- Generic847 claims72%
- Brand-name333 claims28%
Dr. Kumar's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 9312024: 1,05413%
Drugs named by CMS: 13 in 2024, 11 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Nilay Kumar ranks in the 92nd percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Kumar accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 227 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Kumar, more than 92% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Kumar ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 92nd percentile227 procedures
- Colonoscopy
- 85th percentile125 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Find gastroenterologists like Dr. Kumar by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Nilay Kumar has 52 publications on record
Dmand AI links 52 papers to Dr. Kumar, published from 2010 to 2024. 2016 was the busiest year, with 5. The most frequent topics are Hospital Mortality, Length of Stay and Renal Dialysis. Dr. Kumar has published most often in Int J Cardiol. Dr. Kumar's most frequent co-authors are Gagan Kumar, MD, Abhishek J. Deshmukh, MD and Arjun Gupta, MBBS.
Papers52
Years published2010 to 2024
Dr. Kumar's papers by year, 2015 to 2024
Topics Dr. Kumar writes about most
- Hospital Mortality
- Length of Stay
- Renal Dialysis
- Comorbidity
- Hypertension
- Internet
- Kidney Failure, Chronic
- Seasons
Dr. Kumar's most frequent co-authors
- Gagan Kumar, MD7 shared papers
- Abhishek J. Deshmukh, MD2 shared papers
- Arjun Gupta, MBBS2 shared papers
Recent publications by Dr. Kumar
CytoskeletonDrosophilaDrosophila melanogaster
See who Dr. Kumar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kumar works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Nilay Kumar received $12,459 in industry payments from 2016 to 2025
CMS Open Payments shows 29 general payments to Dr. Kumar from 7 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 84% of the total. Bausch Health Americas, Inc. paid the most, $10,500.
General payments to Dr. Kumar by program year, 2016 to 2025
General payments to Dr. Kumar by kind, 2016 to 2025
$12.5Kin total
- Speaker and faculty fees$10,50084%
- Food and beverage$1,95916%
Companies that paid Dr. Kumar the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nilay Kumar'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Nilay Kumar
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. Nilay Kumar's NPI number?
Dr. Nilay Kumar's NPI number is 1427123702. It was assigned on November 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Nilay Kumar?
Dr. Nilay Kumar is a gastroenterologist in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Nilay Kumar practice?
Dr. Kumar practices at 2900 W Oklahoma Ave, Milwaukee, WI 53215. Dr. Kumar's primary practice is Aurora St. Luke's Medical Center in Milwaukee, Wisconsin, part of Advocate Health. Dmand AI also links Dr. Kumar to 3 hospitals, 3 group practices and clinics, 2 medical groups and 1 therapy and rehab clinic.
What is Dr. Nilay Kumar's office phone number?
The practice phone on file for Dr. Kumar is (414) 649-6000.
What is Dr. Nilay Kumar's medical license number?
Dr. Kumar holds Wisconsin license 49637.
Which hospitals is Dr. Nilay Kumar affiliated with?
Dr. Kumar practices at Aurora St. Luke's Medical Center in Milwaukee, Wisconsin. Dr. Kumar is also affiliated with Aurora West Allis Medical Center. Dmand AI links Dr. Kumar to 3 more hospitals.
What medical group is Dr. Nilay Kumar part of?
Dr. Kumar is linked to Aurora Medical Group. Dmand AI links Dr. Kumar to 2 more medical groups.
Does Dr. Nilay Kumar accept Medicare?
Yes. CMS data shows Dr. Kumar billed Medicare for 1,163 services in 2024, and Dr. Kumar accepts Medicare assignment.
How many Medicare patients does Dr. Nilay Kumar see?
CMS counts 464 Medicare patients who saw Dr. Kumar in 2024, with an average age of 72.
What services does Dr. Nilay Kumar bill to Medicare?
In 2024, Dr. Kumar's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99223).
Show 5 more questionsShow fewer questions
What drugs does Dr. Nilay Kumar prescribe most?
In 2024 Medicare Part D data, Dr. Kumar's most prescribed drugs by claims were Pantoprazole Sodium, Peg 3350-Electrolyte and Sod Sulf-Potass Sulf-Mag Sulf.
Has Dr. Nilay Kumar received payments from drug or device companies?
CMS Open Payments shows $12,459 in general payments to Dr. Kumar from 7 companies from 2016 to 2025. The largest total came from Bausch Health Americas, Inc.
How long has Dr. Nilay Kumar been practicing?
Dr. Kumar graduated from medical school in 2004, 22 years ago.
Does Dr. Nilay Kumar do research?
Dmand AI links 52 publications to Dr. Kumar, published from 2010 to 2024.
Who does Dr. Nilay Kumar publish with?
Dr. Kumar's most frequent co-authors are Gagan Kumar, MD (7 shared papers), Abhishek J. Deshmukh, MD (2 shared papers) and Arjun Gupta, MBBS (2 shared papers).
Selling to gastroenterology practices?
See gastroenterologists in Wisconsin by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card