Dr. Gary R. Griglione, MD
- Medicare services, 2024
- 77
- Medicare patients, 2024
- 81
- Part D claims, 2024
- 98
- MIPS score, 2024
- 83
- Hospital affiliations
- 2
- Practice address
- 600 Highland Ave, Madison, WI 53792
- Practice phone
- Call (608) 265-1978
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Health Services - Madison (Highland Ave)
College / University Student Health · Madison, Wisconsin
Find Dr. Griglione'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. Gary R. Griglione is a gastroenterologist in Madison, Wisconsin
Dr. Griglione practices at University Health Services - Madison (Highland Ave) in Madison, Wisconsin.
Dr. Griglione's NPI, 1013931203, was assigned on July 27, 2006. Dr. Griglione holds Wisconsin license 56101.
- NPI
- 1013931203NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850421686
- NPI enumeration date
- July 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (608) 265-1978
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gary R. Griglione practices at University Health Services - Madison (Highland Ave) in Madison, Wisconsin
Dr. Griglione's primary practice is University Health Services - Madison (Highland Ave), at 600 Highland Ave, Madison, WI 53792. The practice phone is (608) 265-1978.
- University Health Services - Madison (Highland Ave)600 Highland Ave, Madison, WI 53792Phone(608) 265-1978
Source: Dmand AI Affiliation Data
Dr. Gary R. Griglione is affiliated with 3 sites of care and 1 medical group
Dr. Griglione's primary practice is University Health Services - Madison (Highland Ave) in Madison, Wisconsin. Dr. Griglione is also affiliated with University Hospital. The medical group on file is UW Health. Dmand AI also links Dr. Griglione to 1 more hospital, named with a free account. Dr. Griglione's employer is on file too: a school & student health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gary R. Griglione's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Griglione practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Health Services - Madison (Highland Ave) | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gary R. Griglione is one of 277 gastroenterologists in Wisconsin
Gastroenterology is Dr. Griglione's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Griglione's licenses on file in 2 states: Wisconsin and Illinois.
Specialties and state licenses
- Gastroenterology, WisconsinPrimary
- Illinois license
Gastroenterologists near Dr. Griglione
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. Gary R. Griglione billed Medicare for 77 services in 2024
CMS data shows 77 Medicare services from Dr. Griglione across 3 procedure codes in 2024, for 81 Medicare patients. Medicare paid $10,947 for them. Every service was in an office.
Dr. Griglione's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1152024: 6345%
- Other services
- 2023: 462024: 1470%
Dr. Griglione compared with the Wisconsin median for gastroenterologists, 2024
- Dr. Griglione
- Wisconsin median
- Medicare services
- 77vs 32977% below
- Medicare patients
- 81vs 25869% below
- Part D claims
- 82vs 42981% below
Medians across 278 gastroenterologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Griglione'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. Griglione and other gastroenterologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gary R. Griglione treated 81 Medicare patients in 2024, average age 71
CMS counts 81 Medicare patients who saw Dr. Griglione in 2024. The largest group is 65 to 74, with 61 patients. 57% of them have high cholesterol, and 56% have high blood pressure. Their average risk score is 0.47, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Griglione's median patient age at 57, with 45% women.
Dr. Griglione's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Griglione's Medicare patients by sex, 2024
- Women4657%
- Men3543%
Chronic conditions among Dr. Griglione's Medicare patients, 2024
- High cholesterol57%
- High blood pressure56%
- Cancer19%
- Arthritis17%
- Diabetes17%
- Mood disorders16%
- Osteoporosis16%
- Depression15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Griglione's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gary R. Griglione wrote 98 Medicare Part D claims in 2024
In 2024, Dr. Griglione wrote 98 Medicare Part D claims for 97 patients. 95% of them were for generic drugs. CMS names the drug for 82 of them, across 1 drug with 11 or more claims each, at $1,391 in total drug cost. In 2023, CMS named 94 claims across 1 drug.
Dr. Griglione's Part D claims by kind of drug, 2024
- Generic93 claims95%
- Brand-name and other5 claims5%
Dr. Griglione'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: 942024: 8213%
Drugs named by CMS: 1 in 2024, 1 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. Gary R. Griglione scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Griglione for performance year 2024, reported as part of a group. Dr. Griglione accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 27 procedures of colonoscopy by Dr. Griglione, more than 52% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Griglione's MIPS scores, performance year 2024
- 83of 100Final score
- 87.8of 100Quality
- 77of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Griglione ranks in Medicare procedure volume
- Colonoscopy
- 52nd percentile27 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 47th percentile16 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Gary R. Griglione received $22 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Griglione from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Valeant Pharmaceuticals International paid the most, $22.
Companies that paid Dr. Griglione the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Gary R. Griglione'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)Clinician Public Reporting: Overall MIPS Performance (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) |
| 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. Gary R. Griglione
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. Gary R. Griglione's NPI number?
Dr. Gary R. Griglione's NPI number is 1013931203. It was assigned on July 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gary R. Griglione?
Dr. Gary R. Griglione is a gastroenterologist in Madison, Wisconsin. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Gary R. Griglione practice?
Dr. Griglione practices at 600 Highland Ave, Madison, WI 53792. Dr. Griglione's primary practice is University Health Services - Madison (Highland Ave) in Madison, Wisconsin. Dmand AI also links Dr. Griglione to 1 hospital.
What is Dr. Gary R. Griglione's office phone number?
The practice phone on file for Dr. Griglione is (608) 265-1978.
What is Dr. Gary R. Griglione's medical license number?
Dr. Griglione holds Wisconsin license 56101, one of the licenses on file in 2 states.
Which states has Dr. Gary R. Griglione been licensed in?
Dmand AI has state licenses on file for Dr. Griglione in Wisconsin and Illinois.
Which hospitals is Dr. Gary R. Griglione affiliated with?
Dr. Griglione is affiliated with University Hospital. Dmand AI links Dr. Griglione to 1 more hospital.
What medical group is Dr. Gary R. Griglione part of?
Dr. Griglione is linked to UW Health.
Does Dr. Gary R. Griglione accept Medicare?
Yes. CMS data shows Dr. Griglione billed Medicare for 77 services in 2024, and Dr. Griglione accepts Medicare assignment.
What is Dr. Gary R. Griglione's MIPS score?
Dr. Griglione's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Gary R. Griglione see?
CMS counts 81 Medicare patients who saw Dr. Griglione in 2024, with an average age of 71.
What services does Dr. Gary R. Griglione bill to Medicare?
In 2024, Dr. Griglione's most billed Medicare services were surgery: digestive system (45385), surgery: digestive system (45380) and medicare service (G0105).
What drugs does Dr. Gary R. Griglione prescribe most?
In 2024 Medicare Part D data, Dr. Griglione's most prescribed drugs by claims were Gavilyte-C.
Has Dr. Gary R. Griglione received payments from drug or device companies?
CMS Open Payments shows $22 in general payments to Dr. Griglione from 1 company from 2017 to 2017. The largest total came from Valeant Pharmaceuticals International.
How long has Dr. Gary R. Griglione been practicing?
Dr. Griglione graduated from medical school in 1982, 44 years ago.
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