Dr. John Pierre Case, MD
- Medicare services, 2024
- 215
- Medicare patients, 2024
- 102
- Part D claims, 2024
- 1,151
- Publications
- 1
- MIPS score, 2024
- 95
- Practice address
- 1901 W Harrison St, Chicago, IL 60612
- Practice phone
- Call (312) 864-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Case's professional email, personal email and mobile number
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Dr. John Pierre Case is a rheumatologist in Chicago, Illinois
Dr. Case practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government.
Dr. Case's NPI, 1104840123, was assigned on July 26, 2006. Dr. Case graduated from Tufts University School of Medicine in 1985. Dr. Case holds Illinois license 036-073570.
- NPI
- 1104840123NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163603275
- NPI enumeration date
- July 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (312) 864-6000
- 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. John Pierre Case practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois
Dr. Case's primary practice is John H. Stroger, Jr. Hospital of Cook County, at 1901 W Harrison St, Chicago, IL 60612 in Cook County. The practice phone is (312) 864-6000.
- John H. Stroger, Jr. Hospital of Cook County1901 W Harrison St, Chicago, IL 60612 · Cook CountyPhone(312) 864-6000
Source: Dmand AI Affiliation Data
Dr. John Pierre Case is affiliated with 1 site of care and 1 medical group
Dr. Case's primary practice is John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government. The medical group on file is John H. Stroger, Jr. Hospital of Cook County.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Pierre Case's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Case practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John H. Stroger, Jr. Hospital of Cook County | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Pierre Case is one of 285 rheumatologists in Illinois
Rheumatology is Dr. Case's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Case is licensed in Illinois.
Specialties and state licenses
- Rheumatology, IllinoisPrimary
Rheumatologists near Dr. Case
Counts of rheumatologists 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 Pierre Case billed Medicare for 215 services in 2024
CMS data shows 215 Medicare services from Dr. Case across 2 procedure codes in 2024, all of them office visits, for 102 Medicare patients. Medicare paid $15,395 for them. Every service was in an office.
Dr. Case's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2242024: 2154%
Dr. Case compared with the Illinois median for rheumatologists, 2024
- Dr. Case
- Illinois median
- Medicare services
- 215vs 98778% below
- Medicare patients
- 102vs 26261% below
- Part D claims
- 967vs 1,07710% below
Medians across 290 rheumatologists in Illinois with Dmand AI profiles that report each measure.
Dr. Case'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. Case and other rheumatologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Pierre Case treated 102 Medicare patients in 2024, average age 70
CMS counts 102 Medicare patients who saw Dr. Case in 2024. The largest group is 65 to 74, with 50 patients. 75% of them have arthritis, and 75% have high blood pressure. 74% are also on Medicaid. Their average risk score is 1.97, 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. Case's median patient age at 70, with 65% women.
Dr. Case's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Case's Medicare patients by sex, 2024
- Women7271%
- Men3029%
Chronic conditions among Dr. Case's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol50%
- Chronic kidney disease46%
- Diabetes40%
- Heart failure27%
- Ischemic heart disease25%
- Mood disorders20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Case'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
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Pierre Case wrote 1,151 Medicare Part D claims in 2024
In 2024, Dr. Case wrote 1,151 Medicare Part D claims for 158 patients. 83% of them were for generic drugs. CMS names the drug for 967 of them, across 28 drugs with 11 or more claims each, at $1,051,224 in total drug cost. In 2023, CMS named 1,089 claims across 27 drugs.
Dr. Case's Part D claims by kind of drug, 2024
- Generic951 claims83%
- Brand-name and other200 claims17%
Dr. Case'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. Case's Part D claims, 2024
- Opioids11%126 of 1,151 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: 1,0892024: 96711%
Drugs named by CMS: 28 in 2024, 27 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 Pierre Case scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Case for performance year 2024, reported as part of a group. Dr. Case accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Case's MIPS scores, performance year 2024
- 95of 100Final score
- 74.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 85of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. John Pierre Case has 1 publication on record
Dmand AI links 1 paper to Dr. Case in 2013. Dr. Case's most frequent co-author is Augustine M. Manadan, MD.
Dr. Case's most frequent co-authors
Recent publications by Dr. Case
See who Dr. Case researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Case works with, so you can find a warm path to the right rheumatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Pierre Case received $519 in industry payments from 2016 to 2025
CMS Open Payments shows 13 general payments to Dr. Case from 4 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 58% of the total. Pfizer Inc. paid the most, $391.
General payments to Dr. Case by program year, 2016 to 2025
General payments to Dr. Case by kind, 2016 to 2025
- Consulting fees$30058%
- Food and beverage$17333%
- Education$469%
Companies that paid Dr. Case 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 Pierre Case graduated from Tufts University School of Medicine
Dr. Case graduated from Tufts University School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Pierre Case'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) |
| 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) |
| 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 Pierre Case
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 Pierre Case's NPI number?
Dr. John Pierre Case's NPI number is 1104840123. It was assigned on July 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Pierre Case?
Dr. John Pierre Case is a rheumatologist in Chicago, Illinois. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. John Pierre Case practice?
Dr. Case practices at 1901 W Harrison St, Chicago, IL 60612. Dr. Case's primary practice is John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government.
What is Dr. John Pierre Case's office phone number?
The practice phone on file for Dr. Case is (312) 864-6000.
What is Dr. John Pierre Case's medical license number?
Dr. Case holds Illinois license 036-073570.
Which hospitals is Dr. John Pierre Case affiliated with?
Dr. Case practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois.
What medical group is Dr. John Pierre Case part of?
Dr. Case is linked to John H. Stroger, Jr. Hospital of Cook County.
Does Dr. John Pierre Case accept Medicare?
Yes. CMS data shows Dr. Case billed Medicare for 215 services in 2024, and Dr. Case accepts Medicare assignment.
What is Dr. John Pierre Case's MIPS score?
Dr. Case's MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.
How many Medicare patients does Dr. John Pierre Case see?
CMS counts 102 Medicare patients who saw Dr. Case in 2024, with an average age of 70.
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What services does Dr. John Pierre Case bill to Medicare?
In 2024, Dr. Case's most billed Medicare services were office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. John Pierre Case go to medical school?
Dr. Case graduated from Tufts University School of Medicine in 1985.
What drugs does Dr. John Pierre Case prescribe most?
In 2024 Medicare Part D data, Dr. Case's most prescribed drugs by claims were Prednisone, Tramadol HCl and Humira Pen.
Has Dr. John Pierre Case received payments from drug or device companies?
CMS Open Payments shows $519 in general payments to Dr. Case from 4 companies from 2016 to 2025. The largest total came from Pfizer Inc.
How long has Dr. John Pierre Case been practicing?
Dr. Case graduated from medical school in 1985, 41 years ago.
Does Dr. John Pierre Case do research?
Dmand AI links 1 publication to Dr. Case.
Who does Dr. John Pierre Case publish with?
Dr. Case's most frequent co-authors are Augustine M. Manadan, MD (1 shared paper).
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