Dr. Robert C. Kaiser, MD
- Medicare services, 2022
- 989
- Part D claims, 2023
- 227
- Industry payments
- $7,503
- Affiliated sites
- 3
- Medical groups
- 3
- Practice address
- 17901 Governors Hwy Suite 106 Suite 106, Homewood, IL 60430-1145
- Practice phone
- Call (708) 799-3305
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gi Alliance Of Illinois
Multi-specialty group site · Homewood, Illinois
Find Dr. Kaiser'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. Robert C. Kaiser is a gastroenterologist in Harvey, Illinois
Dr. Kaiser practices at Gi Alliance Of Illinois in Homewood, Illinois.
Dr. Kaiser's NPI, 1255362000, was assigned on July 6, 2006. Dr. Kaiser graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1985. Dr. Kaiser holds Illinois license 036062816.
- NPI
- 1255362000NPI Registry (opens in a new tab)
- NPI enumeration date
- July 6, 2006
- NPI status
- Active
- Practice phone
- (708) 799-3305
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert C. Kaiser practices in Homewood and Harvey
Dr. Kaiser's primary practice is Gi Alliance of Illinois, at 17901 Governors Hwy Suite 106 Suite 106, Homewood, IL 60430-1145. The practice phone is (708) 799-3305. The NPI Registry lists Dr. Kaiser's practice address as 1 Ingalls Dr, Harvey, IL 60426.
- Gi Alliance of IllinoisPrimary17901 Governors Hwy Suite 106 Suite 106, Homewood, IL 60430-1145Phone(708) 799-3305
- NPI Registry address1 Ingalls Dr, Harvey, IL 60426 · Cook CountyPhone(708) 799-3305
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Robert C. Kaiser is affiliated with 3 sites of care and 3 medical groups
Dr. Kaiser's primary practice is Gi Alliance Of Illinois in Homewood, Illinois. The medical group on file is GI Alliance of Illinois. Dmand AI also links Dr. Kaiser to 2 more group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Robert C. Kaiser's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kaiser practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gi Alliance Of Illinois | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert C. Kaiser is one of 771 gastroenterologists in Illinois
Gastroenterology is Dr. Kaiser's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Kaiser is licensed in Illinois.
Specialties and state licenses
- Gastroenterology, IllinoisPrimary
Gastroenterologists near Dr. Kaiser
Counts of gastroenterologists 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. Robert C. Kaiser billed Medicare for 989 services in 2022
CMS data shows 989 Medicare services from Dr. Kaiser across 14 procedure codes in 2022. Medicare paid $118,167 for them.
Dr. Kaiser's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 8722022: 76712%
- Surgery
- 2021: 2262022: 18618%
- Other services
- 2021: 222022: 3664%
Where Dr. Kaiser's Medicare services took place, 2022
- In an office60561%
- In a facility38439%
Dr. Kaiser compared with the Illinois median for gastroenterologists, 2022
- Dr. Kaiser
- Illinois median
- Medicare services
- 989vs 49899% above
- Part D claims
- 227vs 37039% below
Medians across 757 gastroenterologists in Illinois with Dmand AI profiles that report each measure.
Dr. Kaiser's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kaiser and other gastroenterologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert C. Kaiser's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Kaiser's median patient age at 70, with 56% women.
Dr. Kaiser's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women56%
- Men44%
Source: Dmand AI Patient Panel Data
Dr. Robert C. Kaiser wrote 227 Medicare Part D claims in 2023
In 2023, Dr. Kaiser wrote 227 Medicare Part D claims. They cover 6 drugs, with $28,471 in total drug cost. In 2022, CMS named 629 claims across 16 drugs.
Dr. Kaiser's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 6292023: 22764%
Drugs named by CMS: 6 in 2023, 16 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Robert C. Kaiser received $7,503 in industry payments from 2016 to 2022
CMS Open Payments shows 236 general payments to Dr. Kaiser from 26 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 60% of the total. Allergan Inc. paid the most, $3,455.
General payments to Dr. Kaiser by program year, 2016 to 2022
General payments to Dr. Kaiser by kind, 2016 to 2022
- Food and beverage$4,50360%
- Speaker and faculty fees$2,90039%
- Education$1001%
Companies that paid Dr. Kaiser the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert C. Kaiser graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Kaiser graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert C. Kaiser'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Robert C. Kaiser
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. Robert C. Kaiser's NPI number?
Dr. Robert C. Kaiser's NPI number is 1255362000. It was assigned on July 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert C. Kaiser?
Dr. Robert C. Kaiser is a gastroenterologist in Harvey, Illinois. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Robert C. Kaiser practice?
Dr. Kaiser practices at 17901 Governors Hwy Suite 106 Suite 106, Homewood, IL 60430-1145. Dr. Kaiser also practices at 1 Ingalls Dr, Harvey, IL 60426. Dr. Kaiser's primary practice is Gi Alliance Of Illinois in Homewood, Illinois. Dmand AI also links Dr. Kaiser to 2 group practices and clinics and 2 medical groups.
What is Dr. Robert C. Kaiser's office phone number?
The practice phone on file for Dr. Kaiser is (708) 799-3305.
What is Dr. Robert C. Kaiser's medical license number?
Dr. Kaiser holds Illinois license 036062816.
What medical group is Dr. Robert C. Kaiser part of?
Dr. Kaiser is linked to GI Alliance of Illinois. Dmand AI links Dr. Kaiser to 2 more medical groups.
Does Dr. Robert C. Kaiser accept Medicare?
Yes. CMS data shows Dr. Kaiser billed Medicare for 989 services in 2022.
What services does Dr. Robert C. Kaiser bill to Medicare?
In 2022, Dr. Kaiser's most billed Medicare services were hospital inpatient care (99231), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Robert C. Kaiser go to medical school?
Dr. Kaiser graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1985.
What drugs does Dr. Robert C. Kaiser prescribe most?
In 2023 Medicare Part D data, Dr. Kaiser's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole and Dicyclomine HCl.
Has Dr. Robert C. Kaiser received payments from drug or device companies?
CMS Open Payments shows $7,503 in general payments to Dr. Kaiser from 26 companies from 2016 to 2022. The largest total came from Allergan Inc.
How long has Dr. Robert C. Kaiser been practicing?
Dr. Kaiser graduated from medical school in 1985, 41 years ago.
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