Dr. John Griffith Linn, MD
- Medicare services, 2024
- 690
- Medicare patients, 2024
- 424
- Part D claims, 2024
- 107
- MIPS score, 2024
- 85
- Hospital affiliations
- 2
- Practice address
- 2050 Pfingsten, Glenview, IL 60026
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northshore University Healthsystem - Evanston Hospital - Glenview HOPD (2050 Pfingsten)
Acute Care Hospital outpatient department · Glenview, Illinois
Find Dr. Linn's professional email, personal email and mobile number
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Dr. John Griffith Linn is a general surgeon in Glenview, Illinois
Dr. Linn practices at Northshore University Healthsystem - Evanston Hospital - Glenview HOPD (2050 Pfingsten) in Glenview, Illinois.
Dr. Linn's NPI, 1750538880, was assigned on August 20, 2008. Dr. Linn graduated from Medical College of Wisconsin in 2005. Dr. Linn holds Illinois license 036127792.
- NPI
- 1750538880NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678604378
- NPI enumeration date
- August 20, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Griffith Linn practices at Northshore University Healthsystem - Evanston Hospital - Glenview HOPD (2050 Pfingsten) in Glenview, Illinois
Dr. Linn's primary practice is Northshore University Healthsystem - Evanston Hospital - Glenview HOPD (2050 Pfingsten), at 2050 Pfingsten, Glenview, IL 60026.
- Northshore University Healthsystem - Evanston Hospital - Glenview HOPD (2050 Pfingsten)2050 Pfingsten, Glenview, IL 60026
Source: Dmand AI Affiliation Data
Dr. John Griffith Linn is affiliated with 4 sites of care and 1 medical group
Dr. Linn's primary practice is Northshore University Healthsystem - Evanston Hospital - Glenview HOPD (2050 Pfingsten) in Glenview, Illinois. Dr. Linn is also affiliated with Evanston Hospital. The medical group on file is Endeavor Health Medical Group. Dmand AI also links Dr. Linn to 1 more hospital and 1 group practice or clinic, each named with a free account. Dr. Linn's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Griffith Linn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Linn practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northshore University Healthsystem - Evanston Hospital - Glenview HOPD (2050 Pfingsten) | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Griffith Linn is one of 1,217 general surgeons in Illinois
Surgery is Dr. Linn's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Linn is licensed in Illinois.
Specialties and state licenses
- Surgery, IllinoisPrimary
General surgeons near Dr. Linn
Counts of general 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. John Griffith Linn billed Medicare for 690 services in 2024
CMS data shows 690 Medicare services from Dr. Linn across 13 procedure codes in 2024, for 424 Medicare patients. Medicare paid $147,219 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Linn's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4952024: 4636%
- Surgery
- 2023: 3552024: 22736%
Dr. Linn compared with the Illinois median for general surgeons, 2024
- Dr. Linn
- Illinois median
- Medicare services
- 690vs 1943.6 times
- Medicare patients
- 424vs 1442.9 times
- Part D claims
- 57vs 282.0 times
Medians across 1,031 general surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Linn'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. Linn and other general surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Griffith Linn treated 424 Medicare patients in 2024, average age 75
CMS counts 424 Medicare patients who saw Dr. Linn in 2024. The largest group is 65 to 74, with 192 patients. 75% of them have high cholesterol, and 64% have high blood pressure. 6% are also on Medicaid. Their average risk score is 1.18, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Linn's median patient age at 67, with 35% women.
Dr. Linn's Medicare patients by age, 2024
Dr. Linn's Medicare patients by sex, 2024
- Women14033%
- Men28467%
Chronic conditions among Dr. Linn's Medicare patients, 2024
- High cholesterol75%
- High blood pressure64%
- Arthritis42%
- Ischemic heart disease28%
- Cancer22%
- Diabetes20%
- Chronic kidney disease19%
- Mood disorders19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Linn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women35%
- Men65%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Griffith Linn wrote 107 Medicare Part D claims in 2024
In 2024, Dr. Linn wrote 107 Medicare Part D claims for 53 patients. 97% of them were for generic drugs. CMS names the drug for 57 of them, across 2 drugs with 11 or more claims each, at $346 in total drug cost. In 2023, CMS named 53 claims across 3 drugs.
Dr. Linn's Part D claims by kind of drug, 2024
- Generic104 claims97%
- Brand-name and other3 claims3%
Dr. Linn'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.
Drug classes CMS tracks in Dr. Linn's Part D claims, 2024
- Opioids20%21 of 107 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 532024: 578%
Drugs named by CMS: 2 in 2024, 3 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. John Griffith Linn scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Linn for performance year 2024, reported as part of a group. Dr. Linn accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 152 procedures of hernia repair (minimally invasive) by Dr. Linn, more than 99% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Linn's MIPS scores, performance year 2024
- 85of 100Final score
- 75.9of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Linn ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 99th percentile152 procedures
- Hernia repair - groin (open)
- 97th percentile25 procedures
- Melanoma (skin cancer) excision
- 70th percentile15 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
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. John Griffith Linn received $248,230 in industry payments from 2016 to 2025
CMS Open Payments shows 345 general payments to Dr. Linn from 14 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 72% of the total. W. L. Gore & Associates, Inc. paid the most, $237,905. It also lists 2 research payments totaling $1,849 from 2016 to 2017.
General payments to Dr. Linn by program year, 2016 to 2025
General payments to Dr. Linn by kind, 2016 to 2025
- Consulting fees$176,89072%
- Honoraria$36,35015%
- Travel and lodging$20,2268%
- Food and beverage$9,3974%
- Other$4,3672%
Companies that paid Dr. Linn the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Griffith Linn graduated from Medical College of Wisconsin
Dr. Linn graduated from Medical College of Wisconsin in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Griffith Linn'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 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) |
| 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. John Griffith Linn
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. John Griffith Linn's NPI number?
Dr. John Griffith Linn's NPI number is 1750538880. It was assigned on August 20, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. John Griffith Linn?
Dr. John Griffith Linn is a general surgeon in Glenview, Illinois. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. John Griffith Linn practice?
Dr. Linn practices at 2050 Pfingsten, Glenview, IL 60026. Dr. Linn's primary practice is Northshore University Healthsystem - Evanston Hospital - Glenview HOPD (2050 Pfingsten) in Glenview, Illinois. Dmand AI also links Dr. Linn to 1 hospital and 1 group practice or clinic.
What is Dr. John Griffith Linn's medical license number?
Dr. Linn holds Illinois license 036127792.
Which hospitals is Dr. John Griffith Linn affiliated with?
Dr. Linn is affiliated with Evanston Hospital. Dmand AI links Dr. Linn to 1 more hospital.
What medical group is Dr. John Griffith Linn part of?
Dr. Linn is linked to Endeavor Health Medical Group.
Does Dr. John Griffith Linn accept Medicare?
Yes. CMS data shows Dr. Linn billed Medicare for 690 services in 2024, and Dr. Linn accepts Medicare assignment.
What is Dr. John Griffith Linn's MIPS score?
Dr. Linn's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Dr. John Griffith Linn see?
CMS counts 424 Medicare patients who saw Dr. Linn in 2024, with an average age of 75.
What services does Dr. John Griffith Linn bill to Medicare?
In 2024, Dr. Linn's most billed Medicare services were office visit, new patient (99203), surgery: digestive system (49650) and office visit, established patient (99213).
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Where did Dr. John Griffith Linn go to medical school?
Dr. Linn graduated from Medical College of Wisconsin in 2005.
What drugs does Dr. John Griffith Linn prescribe most?
In 2024 Medicare Part D data, Dr. Linn's most prescribed drugs by claims were Omeprazole and Tramadol HCl.
Has Dr. John Griffith Linn received payments from drug or device companies?
CMS Open Payments shows $248,230 in general payments to Dr. Linn from 14 companies from 2016 to 2025. The largest total came from W. L. Gore & Associates, Inc.
How long has Dr. John Griffith Linn been practicing?
Dr. Linn graduated from medical school in 2005, 21 years ago.
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