Dr. Justin Brian Gan, MD
- Medicare services, 2024
- 1,677
- Medicare patients, 2024
- 459
- Part D claims, 2024
- 3,353
- Publications
- 4
- MIPS score, 2024
- 85
- Practice address
- 225 N Milwaukee Ave, Vernon Hills, IL 60061
- Practice phone
- Call (847) 570-5235
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northshore University Healthsystem Faculty Practice Associates
Vernon Hills, Illinois
Find Dr. Gan'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. Justin Brian Gan is an internist in Vernon Hills, Illinois
Dr. Gan practices at Northshore University Healthsystem Faculty Practice Associates in Vernon Hills, Illinois.
Dr. Gan's NPI, 1851549067, was assigned on August 29, 2008. Dr. Gan graduated from Boston University School Of Medicine in 2007. Dr. Gan holds Illinois license 076047.
- NPI
- 1851549067NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6901920941
- NPI enumeration date
- August 29, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (847) 570-5235
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Justin Brian Gan practices at Northshore University Healthsystem Faculty Practice Associates in Vernon Hills, Illinois
Dr. Gan's primary practice is Northshore University Healthsystem Faculty Practice Associates, at 225 N Milwaukee Ave, Vernon Hills, IL 60061 in Lake County. The practice phone is (847) 570-5235.
- Northshore University Healthsystem Faculty Practice Associates225 N Milwaukee Ave, Vernon Hills, IL 60061 · Lake CountyPhone(847) 570-5235
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Justin Brian Gan is affiliated with 6 sites of care and 1 medical group
Dr. Gan's primary practice is Northshore University Healthsystem Faculty Practice Associates in Vernon Hills, Illinois. Dr. Gan is also affiliated with Evanston Hospital. The medical group on file is Endeavor Health Medical Group. Dmand AI also links Dr. Gan to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Justin Brian Gan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northshore University Healthsystem Faculty Practice Associates | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Justin Brian Gan is one of 5,652 internists in Illinois
Internal medicine is Dr. Gan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Gan is board certified in internal medicine by the American Board of Internal Medicine. Dr. Gan is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Clinical focus
Dmand AI lists arteritis, arthritis, fluid in a joint, gout, joint pain, lupus, muscle pain, fibromyalgia, and limb pain and osteoporosis among the conditions Dr. Gan treats.
Internists near Dr. Gan
Counts of internists 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. Justin Brian Gan billed Medicare for 1,677 services in 2024
CMS data shows 1,677 Medicare services from Dr. Gan across 9 procedure codes in 2024, for 459 Medicare patients. Medicare paid $93,404 for them.
Dr. Gan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9762024: 9711%
- Other services
- 2023: 02024: 591
- Surgery
- 2023: 1002024: 11515%
Where Dr. Gan's Medicare services took place, 2024
- In an office84851%
- In a facility82949%
Dr. Gan compared with the Illinois median for internists, 2024
- Dr. Gan
- Illinois median
- Medicare services
- 1,677vs 5663.0 times
- Medicare patients
- 459vs 2082.2 times
- Part D claims
- 3,143vs 28411.1 times
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Gan'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.
Need commercial claims for Dr. Gan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gan and other internists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Justin Brian Gan treated 459 Medicare patients in 2024, average age 74
CMS counts 459 Medicare patients who saw Dr. Gan in 2024. The largest group is 65 to 74, with 196 patients. 75% of them have arthritis, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.47, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gan's median patient age at 69, with 73% women.
Dr. Gan's Medicare patients by age, 2024
Dr. Gan's Medicare patients by sex, 2024
- Women32070%
- Men13930%
Chronic conditions among Dr. Gan's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure65%
- Osteoporosis36%
- Chronic kidney disease26%
- Ischemic heart disease26%
- Mood disorders25%
- Anxiety24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women73%
- Men26%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Justin Brian Gan wrote 3,353 Medicare Part D claims in 2024
In 2024, Dr. Gan wrote 3,353 Medicare Part D claims for 474 patients. 90% of them were for generic drugs. CMS names the drug for 3,143 of them, across 47 drugs with 11 or more claims each, at $1,535,951 in total drug cost. In 2023, CMS named 2,843 claims across 47 drugs.
Dr. Gan's Part D claims by kind of drug, 2024
- Generic3,023 claims90%
- Brand-name and other330 claims10%
Dr. Gan'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. Gan's Part D claims, 2024
- Opioids7%220 of 3,353 claims
- Antibiotics1%21 of 3,353 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: 2,8432024: 3,14311%
Drugs named by CMS: 47 in 2024, 47 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. Justin Brian Gan 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. Gan for performance year 2024, reported as part of a group. Dr. Gan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Gan'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.
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. Justin Brian Gan has 4 publications on record
Dmand AI links 4 papers to Dr. Gan, published from 2015 to 2017. The most frequent topics are Synovial Membrane. Dr. Gan's most frequent co-authors are Augustine M. Manadan, MD, Joel A. Block, MD and Charles A. Bush-Joseph, MD.
Topics Dr. Gan writes about most
- Synovial Membrane
Dr. Gan's most frequent co-authors
- Augustine M. Manadan, MD2 shared papers
- Joel A. Block, MD1 shared paper
- Charles A. Bush-Joseph, MD1 shared paper
Recent publications by Dr. Gan
Osteoarthritis Cartilage
J Clin Rheumatol
See who Dr. Gan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gan works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Justin Brian Gan received $853 in industry payments from 2017 to 2021
CMS Open Payments shows 13 general payments to Dr. Gan from 5 drug and device companies from 2017 to 2021. Food and beverage make up the largest share, 91% of the total. Abbvie Inc. paid the most, $447.
General payments to Dr. Gan by program year, 2017 to 2021
General payments to Dr. Gan by kind, 2017 to 2021
- Food and beverage$77791%
- Education$769%
Companies that paid Dr. Gan the most, 2017 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Justin Brian Gan has 1 award and honors on record
Dmand AI lists 1 award for Dr. Gan, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Gan
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Justin Brian Gan graduated from Boston University School Of Medicine
Dr. Gan graduated from Boston University School Of Medicine in 2007. Dr. Gan is a member of ACR and ACR.
- Medical school
- Board certified in internal medicine
- Board certified in rheumatology
Source: Dmand AI Professional Profile Data
Dr. Justin Brian Gan accepts plans from 16 insurance carriers
Dr. Gan is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Cigna. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Cigna
- HCSC
- United Healthcare
- Elevance
- Humana
- Aspirus Health Plan
- +8 more carriersWith a free account
Plan types Dr. Gan accepts, by number of carriers
- PPO11
- HMO9
- Medicare9
- POS5
- EPO4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Justin Brian Gan'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Justin Brian Gan
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. Justin Brian Gan's NPI number?
Dr. Justin Brian Gan's NPI number is 1851549067. It was assigned on August 29, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Justin Brian Gan?
Dr. Justin Brian Gan is an internist in Vernon Hills, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Justin Brian Gan practice?
Dr. Gan practices at 225 N Milwaukee Ave, Vernon Hills, IL 60061. Dr. Gan's primary practice is Northshore University Healthsystem Faculty Practice Associates in Vernon Hills, Illinois. Dmand AI also links Dr. Gan to 3 hospitals and 1 group practice or clinic.
What is Dr. Justin Brian Gan's office phone number?
The practice phone on file for Dr. Gan is (847) 570-5235.
What is Dr. Justin Brian Gan's medical license number?
Dr. Gan holds Illinois license 076047.
Which hospitals is Dr. Justin Brian Gan affiliated with?
Dr. Gan is affiliated with Evanston Hospital. Dmand AI links Dr. Gan to 3 more hospitals.
What medical group is Dr. Justin Brian Gan part of?
Dr. Gan is linked to Endeavor Health Medical Group.
Does Dr. Justin Brian Gan accept Medicare?
Yes. CMS data shows Dr. Gan billed Medicare for 1,677 services in 2024, and Dr. Gan accepts Medicare assignment.
Does Dr. Justin Brian Gan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Gan as offering telehealth services.
What is Dr. Justin Brian Gan's MIPS score?
Dr. Gan's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Justin Brian Gan see?
CMS counts 459 Medicare patients who saw Dr. Gan in 2024, with an average age of 74.
Is Dr. Justin Brian Gan board certified?
Yes. Dr. Gan is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Justin Brian Gan bill to Medicare?
In 2024, Dr. Gan's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99215).
Where did Dr. Justin Brian Gan go to medical school?
Dr. Gan graduated from Boston University School Of Medicine in 2007.
What drugs does Dr. Justin Brian Gan prescribe most?
In 2024 Medicare Part D data, Dr. Gan's most prescribed drugs by claims were Prednisone, Hydroxychloroquine Sulfate and Methotrexate.
Has Dr. Justin Brian Gan received payments from drug or device companies?
CMS Open Payments shows $853 in general payments to Dr. Gan from 5 companies from 2017 to 2021. The largest total came from Abbvie Inc.
How long has Dr. Justin Brian Gan been practicing?
Dr. Gan graduated from medical school in 2007, 19 years ago.
Does Dr. Justin Brian Gan do research?
Dmand AI links 4 publications to Dr. Gan, published from 2015 to 2017.
Who does Dr. Justin Brian Gan publish with?
Dr. Gan's most frequent co-authors are Augustine M. Manadan, MD (2 shared papers), Joel A. Block, MD (1 shared paper) and Charles A. Bush-Joseph, MD (1 shared paper).
What insurance does Dr. Justin Brian Gan accept?
Dr. Gan is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Cigna. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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