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Dr. Justin Gabriel Hartke, MD
NPI1154689685PAC ID6002043965
- Medicare services, 2024
- 1,289
- Medicare patients, 2024
- 293
- Part D claims, 2024
- 1,496
- Publications
- 6
- MIPS score, 2024
- 100
- Practice address
- 411 Westwood Dr, Wausau, WI 54401
- Practice phone
- Call (715) 847-0443
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
GastroIntestinal Associates Endoscopy Center
Surgery Center - Medicare-Certified · Wausau, Wisconsin
Find Dr. Hartke's professional email, personal email and mobile number
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Dr. Justin Gabriel Hartke is a gastroenterologist in Wausau, Wisconsin
Dr. Hartke practices at GastroIntestinal Associates Endoscopy Center in Wausau, Wisconsin.
Dr. Hartke's NPI, 1154689685, was assigned on May 3, 2012. Dr. Hartke graduated from Wright State University Boonshoft School of Medicine in 2012. Dr. Hartke holds Wisconsin license 69359-20.
NPI and contact details
- NPI
- 1154689685NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002043965
- NPI enumeration date
- May 3, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (715) 847-0443
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Justin Gabriel Hartke practices at GastroIntestinal Associates Endoscopy Center in Wausau, Wisconsin
Dr. Hartke's primary practice is GastroIntestinal Associates Endoscopy Center, at 411 Westwood Dr, Wausau, WI 54401. The practice phone is (715) 847-0443.
- GastroIntestinal Associates Endoscopy Center411 Westwood Dr, Wausau, WI 54401Phone(715) 847-0443
Source: Dmand AI Affiliation Data
Dr. Justin Gabriel Hartke is affiliated with 6 sites of care and 1 medical group
Dr. Hartke's primary practice is GastroIntestinal Associates Endoscopy Center in Wausau, Wisconsin. Dr. Hartke is also affiliated with Aspirus Wausau Hospital. The medical group on file is GI Associates. Dmand AI also links Dr. Hartke to 4 more hospitals, each named with a free account.
GastroIntestinal Associates Endoscopy CenterPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Justin Gabriel Hartke's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hartke practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| GastroIntestinal Associates Endoscopy Center | 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 Gabriel Hartke is one of 277 gastroenterologists in Wisconsin
Gastroenterology is Dr. Hartke's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Hartke is licensed in Wisconsin.
Specialties and state licenses
- Gastroenterology, WisconsinPrimary
Gastroenterologists near Dr. Hartke
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. Justin Gabriel Hartke billed Medicare for 1,289 services in 2024
CMS data shows 1,289 Medicare services from Dr. Hartke across 13 procedure codes in 2024, for 293 Medicare patients. Medicare paid $63,797 for them.
Medicare services, 20241,289
Medicare patients293
Paid by Medicare$63,797
Procedure codes13
Dr. Hartke's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 02024: 870
- Surgery
- 2023: 2142024: 25921%
- Office and hospital visits
- 2023: 802024: 11746%
- Tests and treatments
- 2023: 322024: 313%
- Other services
- 2023: 02024: 12
Where Dr. Hartke's Medicare services took place, 2024
- In an office1,01879%
- In a facility27121%
Dr. Hartke compared with the Wisconsin median for gastroenterologists, 2024
- Dr. Hartke
- Wisconsin median
- Medicare services
- 1,289vs 3293.9 times
- Medicare patients
- 293vs 25814% above
- Part D claims
- 1,260vs 4292.9 times
Medians across 278 gastroenterologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Hartke'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Justin Gabriel Hartke treated 293 Medicare patients in 2024, average age 70
CMS counts 293 Medicare patients who saw Dr. Hartke in 2024. The largest group is 65 to 74, with 186 patients. 70% of them have high cholesterol, and 59% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.00, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hartke's median patient age at 61, with 52% women.
Medicare patients, 2024293
Average age70
Average risk score1.00
Also on Medicaid14%
Dr. Hartke's Medicare patients by age, 2024
Dr. Hartke's Medicare patients by sex, 2024
- Women17359%
- Men12041%
Chronic conditions among Dr. Hartke's Medicare patients, 2024
- High cholesterol70%
- High blood pressure59%
- Arthritis38%
- Anxiety30%
- Diabetes28%
- Mood disorders23%
- Depression21%
- Ischemic heart disease20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hartke's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Justin Gabriel Hartke wrote 1,496 Medicare Part D claims in 2024
In 2024, Dr. Hartke wrote 1,496 Medicare Part D claims for 322 patients. 76% of them were for generic drugs. CMS names the drug for 1,260 of them, across 26 drugs with 11 or more claims each, at $1,758,508 in total drug cost. In 2023, CMS named 934 claims across 21 drugs.
Part D claims, 20241,496
Drugs named by CMS26
Total drug cost$1.8M
Part D patients322
Dr. Hartke's Part D claims by kind of drug, 2024
- Generic1,131 claims76%
- Brand-name365 claims24%
Dr. Hartke'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. Hartke's Part D claims, 2024
- Antibiotics2%31 of 1,496 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: 9342024: 1,26035%
Drugs named by CMS: 26 in 2024, 21 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 Gabriel Hartke scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Hartke for performance year 2024, reported as part of a group. Dr. Hartke accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hartke as offering telehealth. CMS counts 123 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Hartke, more than 81% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Hartke's MIPS scores, performance year 2024
- 100of 100Final score
- 97.2of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Hartke ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 81st percentile123 procedures
- Colonoscopy
- 81st percentile108 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. Justin Gabriel Hartke has 6 publications on record
Dmand AI links 6 papers to Dr. Hartke, published from 2017 to 2018. 2017 was the busiest year, with 3. Dr. Hartke's most frequent co-authors are Matthew E. Bohm, MD, Prianka Radhika Chilukuri, MD and Parambir Singh Dulai, MBBS.
Papers6
Years published2017 to 2018
Dr. Hartke's most frequent co-authors
- Matthew E. Bohm, MD5 shared papers
- Prianka Radhika Chilukuri, MD5 shared papers
- Parambir Singh Dulai, MBBS5 shared papers
Recent publications by Dr. Hartke
See who Dr. Hartke researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hartke works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Justin Gabriel Hartke received $3,043 in industry payments from 2017 to 2023
CMS Open Payments shows 18 general payments to Dr. Hartke from 6 drug and device companies from 2017 to 2023. Education speaker fees make up the largest share, 55% of the total. FUJIFILM Healthcare Americas Corporation paid the most, $1,673.
General payments to Dr. Hartke by program year, 2017 to 2023
General payments to Dr. Hartke by kind, 2017 to 2023
$3Kin total
- Education speaker fees$1,67355%
- Speaker and faculty fees$87529%
- Food and beverage$42514%
- Education$702%
Companies that paid Dr. Hartke the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Justin Gabriel Hartke graduated from Wright State University Boonshoft School of Medicine
Dr. Hartke graduated from Wright State University Boonshoft School of Medicine in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Justin Gabriel Hartke'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) |
| 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. Justin Gabriel Hartke
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 Gabriel Hartke's NPI number?
Dr. Justin Gabriel Hartke's NPI number is 1154689685. It was assigned on May 3, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Justin Gabriel Hartke?
Dr. Justin Gabriel Hartke is a gastroenterologist in Wausau, Wisconsin. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Justin Gabriel Hartke practice?
Dr. Hartke practices at 411 Westwood Dr, Wausau, WI 54401. Dr. Hartke's primary practice is GastroIntestinal Associates Endoscopy Center in Wausau, Wisconsin. Dmand AI also links Dr. Hartke to 4 hospitals.
What is Dr. Justin Gabriel Hartke's office phone number?
The practice phone on file for Dr. Hartke is (715) 847-0443.
What is Dr. Justin Gabriel Hartke's medical license number?
Dr. Hartke holds Wisconsin license 69359-20.
Which hospitals is Dr. Justin Gabriel Hartke affiliated with?
Dr. Hartke is affiliated with Aspirus Wausau Hospital. Dmand AI links Dr. Hartke to 4 more hospitals.
What medical group is Dr. Justin Gabriel Hartke part of?
Dr. Hartke is linked to GI Associates.
Does Dr. Justin Gabriel Hartke accept Medicare?
Yes. CMS data shows Dr. Hartke billed Medicare for 1,289 services in 2024, and Dr. Hartke accepts Medicare assignment.
Does Dr. Justin Gabriel Hartke offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hartke as offering telehealth services.
What is Dr. Justin Gabriel Hartke's MIPS score?
Dr. Hartke's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Justin Gabriel Hartke see?
CMS counts 293 Medicare patients who saw Dr. Hartke in 2024, with an average age of 70.
What services does Dr. Justin Gabriel Hartke bill to Medicare?
In 2024, Dr. Hartke's most billed Medicare services were injected or infused drug (J1745), surgery: digestive system (45385) and surgery: digestive system (43239).
Where did Dr. Justin Gabriel Hartke go to medical school?
Dr. Hartke graduated from Wright State University Boonshoft School of Medicine in 2012.
What drugs does Dr. Justin Gabriel Hartke prescribe most?
In 2024 Medicare Part D data, Dr. Hartke's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Linzess.
Has Dr. Justin Gabriel Hartke received payments from drug or device companies?
CMS Open Payments shows $3,043 in general payments to Dr. Hartke from 6 companies from 2017 to 2023. The largest total came from FUJIFILM Healthcare Americas Corporation.
How long has Dr. Justin Gabriel Hartke been practicing?
Dr. Hartke graduated from medical school in 2012, 14 years ago.
Does Dr. Justin Gabriel Hartke do research?
Dmand AI links 6 publications to Dr. Hartke, published from 2017 to 2018.
Who does Dr. Justin Gabriel Hartke publish with?
Dr. Hartke's most frequent co-authors are Matthew E. Bohm, MD (5 shared papers), Prianka Radhika Chilukuri, MD (5 shared papers) and Parambir Singh Dulai, MBBS (5 shared papers).
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