Dr. John Gerald Hagan IV, DO
- Medicare services, 2024
- 381
- Medicare patients, 2024
- 140
- Part D claims, 2024
- 5,866
- Hospital affiliations
- 4
- Industry payments
- $220
- Practice address
- 4000 Wellness Drive, Midland, MI 48670
- Practice phone
- Call (989) 839-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hagan'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. John Gerald Hagan IV is a family medicine physician in Midland, Michigan
Dr. Hagan practices at MyMichigan Medical Center Midland in Midland, Michigan, part of MyMichigan Health.
Dr. Hagan's NPI, 1548790165, was assigned on June 15, 2017. Dr. Hagan graduated from Michigan State University College of Osteopathic Medicine in 2017. Dr. Hagan holds Michigan license 5101025515.
- NPI
- 1548790165NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577984160
- NPI enumeration date
- June 15, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (989) 839-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Gerald Hagan IV practices at MyMichigan Medical Center Midland in Midland, Michigan
Dr. Hagan's primary practice is MyMichigan Medical Center Midland, at 4000 Wellness Drive, Midland, MI 48670 in Midland County. The practice phone is (989) 839-3000.
- MyMichigan Medical Center Midland4000 Wellness Drive, Midland, MI 48670 · Midland CountyPhone(989) 839-3000
Source: Dmand AI Affiliation Data
Dr. John Gerald Hagan IV is affiliated with 6 sites of care and 4 medical groups
Dr. Hagan's primary practice is MyMichigan Medical Center Midland in Midland, Michigan, part of MyMichigan Health. Dr. Hagan is also affiliated with MyMichigan Medical Center Clare. The medical group on file is Powerback Rehabilitation. Dmand AI also links Dr. Hagan to 2 more hospitals, 3 medical groups, 1 group practice or clinic and 1 therapy and rehab clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Gerald Hagan IV's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hagan practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MyMichigan Medical Center Midland | Available with a free account |
| +5 more sites and 3 medical groups | 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 MyMichigan Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John Gerald Hagan IV is one of 4,931 family medicine physicians in Michigan
Family medicine is Dr. Hagan's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Hagan is licensed in Michigan.
Specialties and state licenses
- Family medicine, MichiganPrimary
Family medicine physicians near Dr. Hagan
Counts of family medicine physicians 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 Gerald Hagan IV billed Medicare for 381 services in 2024
CMS data shows 381 Medicare services from Dr. Hagan across 4 procedure codes in 2024, for 140 Medicare patients. Medicare paid $24,698 for them. Every service was in an office.
Dr. Hagan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3852024: 29922%
- Other services
- 2023: 422024: 432%
- Lab and pathology
- 2023: 02024: 39
Dr. Hagan compared with the Michigan median for family medicine physicians, 2024
- Dr. Hagan
- Michigan median
- Medicare services
- 381vs 24854% above
- Medicare patients
- 140vs 11225% above
- Part D claims
- 5,234vs 1,0335.1 times
Medians across 4,990 family medicine physicians in Michigan with Dmand AI profiles that report each measure.
Dr. Hagan'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. Hagan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hagan and other family medicine physicians in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Gerald Hagan IV treated 140 Medicare patients in 2024, average age 74
CMS counts 140 Medicare patients who saw Dr. Hagan in 2024. The largest group is 65 to 74, with 64 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 8% are also on Medicaid. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hagan's median patient age at 54, with 40% women.
Dr. Hagan's Medicare patients by age, 2024
Dr. Hagan's Medicare patients by sex, 2024
- Women6748%
- Men7352%
Chronic conditions among Dr. Hagan's Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis42%
- Diabetes31%
- Chronic kidney disease29%
- Anxiety25%
- Ischemic heart disease24%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hagan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women40%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Gerald Hagan IV wrote 5,866 Medicare Part D claims in 2024
In 2024, Dr. Hagan wrote 5,866 Medicare Part D claims for 424 patients. 85% of them were for generic drugs. CMS names the drug for 5,234 of them, across 110 drugs with 11 or more claims each, at $510,717 in total drug cost. In 2023, CMS named 4,694 claims across 105 drugs.
Dr. Hagan's Part D claims by kind of drug, 2024
- Generic4,987 claims85%
- Brand-name787 claims13%
- Other92 claims2%
Dr. Hagan'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. Hagan's Part D claims, 2024
- Opioids2%110 of 5,866 claims
- Antibiotics2%112 of 5,866 claims
- Antipsychotics, patients 65 and over0%26 of 5,866 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: 4,6942024: 5,23412%
Drugs named by CMS: 110 in 2024, 105 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 Gerald Hagan IV offers telehealth to Medicare patients
Dr. Hagan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hagan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. John Gerald Hagan IV received $220 in industry payments from 2017 to 2025
CMS Open Payments shows 6 general payments to Dr. Hagan from 5 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $118.
General payments to Dr. Hagan by program year, 2017 to 2025
Companies that paid Dr. Hagan the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Gerald Hagan IV graduated from Michigan State University College of Osteopathic Medicine
Dr. Hagan graduated from Michigan State University College of Osteopathic Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Gerald Hagan IV'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)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 Gerald Hagan IV
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 Gerald Hagan IV's NPI number?
Dr. John Gerald Hagan IV's NPI number is 1548790165. It was assigned on June 15, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. John Gerald Hagan IV?
Dr. John Gerald Hagan IV is a family medicine physician in Midland, Michigan. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. John Gerald Hagan IV practice?
Dr. Hagan practices at 4000 Wellness Drive, Midland, MI 48670. Dr. Hagan's primary practice is MyMichigan Medical Center Midland in Midland, Michigan, part of MyMichigan Health. Dmand AI also links Dr. Hagan to 2 hospitals, 3 medical groups, 1 group practice or clinic and 1 therapy and rehab clinic.
What is Dr. John Gerald Hagan IV's office phone number?
The practice phone on file for Dr. Hagan is (989) 839-3000.
What is Dr. John Gerald Hagan IV's medical license number?
Dr. Hagan holds Michigan license 5101025515.
Which hospitals is Dr. John Gerald Hagan IV affiliated with?
Dr. Hagan practices at MyMichigan Medical Center Midland in Midland, Michigan. Dr. Hagan is also affiliated with MyMichigan Medical Center Clare. Dmand AI links Dr. Hagan to 2 more hospitals.
What medical group is Dr. John Gerald Hagan IV part of?
Dr. Hagan is linked to Powerback Rehabilitation. Dmand AI links Dr. Hagan to 3 more medical groups.
Does Dr. John Gerald Hagan IV accept Medicare?
Yes. CMS data shows Dr. Hagan billed Medicare for 381 services in 2024, and Dr. Hagan accepts Medicare assignment.
Does Dr. John Gerald Hagan IV offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hagan as offering telehealth services.
How many Medicare patients does Dr. John Gerald Hagan IV see?
CMS counts 140 Medicare patients who saw Dr. Hagan in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. John Gerald Hagan IV bill to Medicare?
In 2024, Dr. Hagan's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0439).
Where did Dr. John Gerald Hagan IV go to medical school?
Dr. Hagan graduated from Michigan State University College of Osteopathic Medicine in 2017.
What drugs does Dr. John Gerald Hagan IV prescribe most?
In 2024 Medicare Part D data, Dr. Hagan's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Amlodipine Besylate.
Has Dr. John Gerald Hagan IV received payments from drug or device companies?
CMS Open Payments shows $220 in general payments to Dr. Hagan from 5 companies from 2017 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. John Gerald Hagan IV been practicing?
Dr. Hagan graduated from medical school in 2017, 9 years ago.
Selling to family medicine practices?
See family medicine physicians in Michigan by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card