Dr. Robert I. Weisman, MD
- Medicare services, 2024
- 189
- Medicare patients, 2024
- 177
- Part D claims, 2024
- 520
- Hospital affiliations
- 2
- Industry payments
- $340
- Practice address
- 2320 E 93rd St, Chicago, IL 60617
- Practice phone
- Call (773) 967-5002
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Weisman'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 I. Weisman is a colorectal surgeon in Chicago, Illinois
Dr. Weisman practices at Advocate Trinity Hospital in Chicago, Illinois, part of Advocate Health.
Dr. Weisman's NPI, 1619901295, was assigned on July 10, 2006. Dr. Weisman graduated from Chicago College of Medicine and Surgery in 1981. Dr. Weisman holds Illinois license 036065704.
- NPI
- 1619901295NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002958857
- NPI enumeration date
- July 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 967-5002
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert I. Weisman practices at Advocate Trinity Hospital in Chicago, Illinois
Dr. Weisman's primary practice is Advocate Trinity Hospital, at 2320 E 93rd St, Chicago, IL 60617 in Cook County. The practice phone is (773) 967-5002.
- Advocate Trinity Hospital2320 E 93rd St, Chicago, IL 60617 · Cook CountyPhone(773) 967-5002
Source: Dmand AI Affiliation Data
Dr. Robert I. Weisman is affiliated with 4 sites of care and 2 medical groups
Dr. Weisman's primary practice is Advocate Trinity Hospital in Chicago, Illinois, part of Advocate Health. Dr. Weisman is also affiliated with Advocate Lutheran General Hospital. The medical group on file is Dreyer Medical Clinic (Advocate Medical Group). Dmand AI also links Dr. Weisman to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert I. Weisman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weisman practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Advocate Trinity Hospital | Available with a free account |
| +3 more sites and 1 medical group | 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 Advocate Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert I. Weisman is one of 78 colorectal surgeons in Illinois
Colon and rectal surgery is Dr. Weisman's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Weisman is licensed in Illinois.
Specialties and state licenses
- Colon and rectal surgery, IllinoisPrimary
Colorectal surgeons near Dr. Weisman
Counts of colorectal surgeons 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 I. Weisman billed Medicare for 189 services in 2024
CMS data shows 189 Medicare services from Dr. Weisman across 7 procedure codes in 2024, for 177 Medicare patients. Medicare paid $27,520 for them.
Dr. Weisman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 832024: 6917%
- Office and hospital visits
- 2023: 2722024: 6277%
- Other services
- 2023: 632024: 588%
Where Dr. Weisman's Medicare services took place, 2024
- In an office6233%
- In a facility12767%
Dr. Weisman compared with the Illinois median for colorectal surgeons, 2024
- Dr. Weisman
- Illinois median
- Medicare services
- 189vs 21813% below
- Medicare patients
- 177vs 16011% above
- Part D claims
- 464vs 1034.5 times
Medians across 71 colorectal surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Weisman'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Weisman and other colorectal surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert I. Weisman treated 177 Medicare patients in 2024, average age 71
CMS counts 177 Medicare patients who saw Dr. Weisman in 2024. The largest group is 65 to 74, with 103 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 27% are also on Medicaid. Their average risk score is 1.39, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Weisman's median patient age at 70, with 61% women.
Dr. Weisman's Medicare patients by age, 2024
Dr. Weisman's Medicare patients by sex, 2024
- Women10258%
- Men7542%
Chronic conditions among Dr. Weisman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis45%
- Diabetes36%
- Chronic kidney disease31%
- Cancer21%
- Ischemic heart disease20%
- Heart failure19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Weisman'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
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert I. Weisman wrote 520 Medicare Part D claims in 2024
In 2024, Dr. Weisman wrote 520 Medicare Part D claims for 457 patients. 53% of them were for generic drugs. CMS names the drug for 464 of them, across 5 drugs with 11 or more claims each, at $10,469 in total drug cost. In 2023, CMS named 117 claims across 2 drugs.
Dr. Weisman's Part D claims by kind of drug, 2024
- Generic278 claims53%
- Brand-name242 claims47%
Dr. Weisman'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: 1172024: 464297%
Drugs named by CMS: 5 in 2024, 2 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. Robert I. Weisman ranks in the 81st percentile for colonoscopy in Medicare
Dr. Weisman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 105 procedures of colonoscopy by Dr. Weisman, more than 81% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Weisman ranks in Medicare procedure volume
- Colonoscopy
- 81st percentile105 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)
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Dr. Robert I. Weisman received $340 in industry payments from 2016 to 2019
CMS Open Payments shows 15 general payments to Dr. Weisman from 7 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $103.
General payments to Dr. Weisman by program year, 2016 to 2019
Companies that paid Dr. Weisman the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert I. Weisman graduated from Chicago College of Medicine and Surgery
Dr. Weisman graduated from Chicago College of Medicine and Surgery in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert I. Weisman'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) |
| 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 I. Weisman
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 I. Weisman's NPI number?
Dr. Robert I. Weisman's NPI number is 1619901295. It was assigned on July 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert I. Weisman?
Dr. Robert I. Weisman is a colorectal surgeon in Chicago, Illinois. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).
Where does Dr. Robert I. Weisman practice?
Dr. Weisman practices at 2320 E 93rd St, Chicago, IL 60617. Dr. Weisman's primary practice is Advocate Trinity Hospital in Chicago, Illinois, part of Advocate Health. Dmand AI also links Dr. Weisman to 2 group practices and clinics and 1 medical group.
What is Dr. Robert I. Weisman's office phone number?
The practice phone on file for Dr. Weisman is (773) 967-5002.
What is Dr. Robert I. Weisman's medical license number?
Dr. Weisman holds Illinois license 036065704.
Which hospitals is Dr. Robert I. Weisman affiliated with?
Dr. Weisman practices at Advocate Trinity Hospital in Chicago, Illinois. Dr. Weisman is also affiliated with Advocate Lutheran General Hospital.
What medical group is Dr. Robert I. Weisman part of?
Dr. Weisman is linked to Dreyer Medical Clinic (Advocate Medical Group). Dmand AI links Dr. Weisman to 1 more medical group.
Does Dr. Robert I. Weisman accept Medicare?
Yes. CMS data shows Dr. Weisman billed Medicare for 189 services in 2024, and Dr. Weisman accepts Medicare assignment.
How many Medicare patients does Dr. Robert I. Weisman see?
CMS counts 177 Medicare patients who saw Dr. Weisman in 2024, with an average age of 71.
What services does Dr. Robert I. Weisman bill to Medicare?
In 2024, Dr. Weisman's most billed Medicare services were surgery: digestive system (45385), medicare service (G0105) and office visit, established patient (99212).
Show 4 more questionsShow fewer questions
Where did Dr. Robert I. Weisman go to medical school?
Dr. Weisman graduated from Chicago College of Medicine and Surgery in 1981.
What drugs does Dr. Robert I. Weisman prescribe most?
In 2024 Medicare Part D data, Dr. Weisman's most prescribed drugs by claims were Peg 3350-Electrolyte, Gavilyte-G and Sod Sulf-Potass Sulf-Mag Sulf.
Has Dr. Robert I. Weisman received payments from drug or device companies?
CMS Open Payments shows $340 in general payments to Dr. Weisman from 7 companies from 2016 to 2019. The largest total came from Abbvie Inc.
How long has Dr. Robert I. Weisman been practicing?
Dr. Weisman graduated from medical school in 1981, 45 years ago.
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