Dr. Jian-Jun Wei, MD
- Medicare services, 2024
- 1,408
- Medicare patients, 2024
- 537
- MIPS score, 2024
- 95
- Hospital affiliations
- 1
- Industry payments
- $125
- Practice address
- 251 E Huron St, Chicago, IL 60611
- Practice phone
- Call (312) 926-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Jian-Jun Wei is a pathologist in Chicago, Illinois
Dr. Wei practices at Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare.
Dr. Wei's NPI, 1649264813, was assigned on September 2, 2005. Dr. Wei holds New York license 228445.
- NPI
- 1649264813NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678548518
- NPI enumeration date
- September 2, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (312) 926-2000
- 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. Jian-Jun Wei practices at Northwestern Memorial Hospital in Chicago, Illinois
Dr. Wei's primary practice is Northwestern Memorial Hospital, at 251 E Huron St, Chicago, IL 60611 in Cook County. The practice phone is (312) 926-2000.
- Northwestern Memorial Hospital251 E Huron St, Chicago, IL 60611 · Cook CountyPhone(312) 926-2000
Source: Dmand AI Affiliation Data
Dr. Jian-Jun Wei is affiliated with 1 site of care and 1 medical group
Dr. Wei's primary practice is Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare. The medical group on file is Northwestern Medical Faculty Foundation.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jian-Jun Wei's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wei practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Memorial Hospital | 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 Northwestern Memorial HealthCare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jian-Jun Wei is one of 63 pathologists in Illinois
Anatomic pathology is Dr. Wei's primary specialty in the NPI Registry, under taxonomy code 207ZP0101X. Dr. Wei is licensed in New York.
Specialties and state licenses
- Anatomic pathology, New YorkPrimary
Pathologists near Dr. Wei
Counts of pathologists 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. Jian-Jun Wei billed Medicare for 1,408 services in 2024
CMS data shows 1,408 Medicare services from Dr. Wei across 8 procedure codes in 2024, for 537 Medicare patients. Medicare paid $42,423 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Wei's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 3482024: 1,408305%
Dr. Wei compared with the Illinois median for pathologists, 2024
- Dr. Wei
- Illinois median
- Medicare services
- 1,408vs 1,03037% above
- Medicare patients
- 537vs 40732% above
Medians across 55 pathologists in Illinois with Dmand AI profiles that report each measure.
Dr. Wei'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. Wei and other pathologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jian-Jun Wei treated 537 Medicare patients in 2024, average age 71
CMS counts 537 Medicare patients who saw Dr. Wei in 2024. The largest group is 65 to 74, with 293 patients. 70% of them have high cholesterol, and 62% have high blood pressure. 16% are also on Medicaid. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Wei's median patient age at 43, with 96% women.
Dr. Wei's Medicare patients by age, 2024
Dr. Wei's Medicare patients by sex, 2024
- Women36768%
- Men17032%
Chronic conditions among Dr. Wei's Medicare patients, 2024
- High cholesterol70%
- High blood pressure62%
- Arthritis43%
- Cancer29%
- Ischemic heart disease24%
- Diabetes23%
- Anxiety22%
- Mood disorders22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Wei's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women96%
- Men2%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jian-Jun Wei 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. Wei for performance year 2024, reported through an alternative payment model (APM). Dr. Wei accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Wei's MIPS scores, performance year 2024
- 95of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
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. Jian-Jun Wei received $125 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Wei from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Calliditas Therapeutics US Inc. paid the most, $125.
Companies that paid Dr. Wei the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jian-Jun Wei'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) |
| 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) |
| 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. Jian-Jun Wei
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. Jian-Jun Wei's NPI number?
Dr. Jian-Jun Wei's NPI number is 1649264813. It was assigned on September 2, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Jian-Jun Wei?
Dr. Jian-Jun Wei is a pathologist in Chicago, Illinois. The primary specialty in the NPI Registry is Anatomic Pathology Physician (taxonomy code 207ZP0101X).
Where does Dr. Jian-Jun Wei practice?
Dr. Wei practices at 251 E Huron St, Chicago, IL 60611. Dr. Wei's primary practice is Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare.
What is Dr. Jian-Jun Wei's office phone number?
The practice phone on file for Dr. Wei is (312) 926-2000.
What is Dr. Jian-Jun Wei's medical license number?
Dr. Wei holds New York license 228445.
Which hospitals is Dr. Jian-Jun Wei affiliated with?
Dr. Wei practices at Northwestern Memorial Hospital in Chicago, Illinois.
What medical group is Dr. Jian-Jun Wei part of?
Dr. Wei is linked to Northwestern Medical Faculty Foundation.
Does Dr. Jian-Jun Wei accept Medicare?
Yes. CMS data shows Dr. Wei billed Medicare for 1,408 services in 2024, and Dr. Wei accepts Medicare assignment.
What is Dr. Jian-Jun Wei's MIPS score?
Dr. Wei's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Jian-Jun Wei see?
CMS counts 537 Medicare patients who saw Dr. Wei in 2024, with an average age of 71.
Show 3 more questionsShow fewer questions
What services does Dr. Jian-Jun Wei bill to Medicare?
In 2024, Dr. Wei's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88341) and lab and pathology test (88342).
Has Dr. Jian-Jun Wei received payments from drug or device companies?
CMS Open Payments shows $125 in general payments to Dr. Wei from 1 company from 2022 to 2022. The largest total came from Calliditas Therapeutics US Inc.
How long has Dr. Jian-Jun Wei been practicing?
Dr. Wei graduated from medical school in 1982, 44 years ago.
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