Dr. Jack Douglas Dehaan, MD
- Part D claims, 2024
- 44
- Hospital affiliations
- 3
- Industry payments
- $15
- Medical groups
- 2
- State license
- 1
- Practice address
- 5215 Holy Cross Pkwy, Mishawaka, IN 46545
- Practice phone
- Call (574) 335-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Dehaan'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. Jack Douglas Dehaan is an emergency medicine physician in Mishawaka, Indiana
Dr. Dehaan practices at Saint Joseph Mishawaka Medical Center in Mishawaka, Indiana, part of Trinity Health.
Dr. Dehaan's NPI, 1851975429, was assigned on May 10, 2021. Dr. Dehaan holds Michigan license 4351048260.
- NPI
- 1851975429NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486058062
- NPI enumeration date
- May 10, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (574) 335-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jack Douglas Dehaan practices at Saint Joseph Mishawaka Medical Center in Mishawaka, Indiana
Dr. Dehaan's primary practice is Saint Joseph Mishawaka Medical Center, at 5215 Holy Cross Pkwy, Mishawaka, IN 46545 in St. Joseph County. The practice phone is (574) 335-5000.
- Saint Joseph Mishawaka Medical Center5215 Holy Cross Pkwy, Mishawaka, IN 46545 · St. Joseph CountyPhone(574) 335-5000
Source: Dmand AI Affiliation Data
Dr. Jack Douglas Dehaan is affiliated with 4 sites of care and 2 medical groups
Dr. Dehaan's primary practice is Saint Joseph Mishawaka Medical Center in Mishawaka, Indiana, part of Trinity Health. Dr. Dehaan is also affiliated with Henry Ford Genesys Hospital. The medical group on file is Vituity. Dmand AI also links Dr. Dehaan to 1 more hospital, 1 therapy and rehab clinic and 1 medical group, 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. Jack Douglas Dehaan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dehaan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saint Joseph Mishawaka Medical Center | Available with a free account |
| +3 more sites and 1 medical group | 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 Trinity Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jack Douglas Dehaan is one of 1,275 emergency medicine physicians in Indiana
Emergency medicine is Dr. Dehaan's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Dehaan is licensed in Michigan.
Specialties and state licenses
- Emergency medicine, MichiganPrimary
Emergency medicine physicians near Dr. Dehaan
Counts of emergency 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. Jack Douglas Dehaan's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Dr. Dehaan's median patient age at 68, with 57% women.
Dr. Dehaan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women57%
- Men42%
Source: Dmand AI Patient Panel Data
Dr. Jack Douglas Dehaan wrote 44 Medicare Part D claims in 2024
In 2024, Dr. Dehaan wrote 44 Medicare Part D claims for 41 patients. 98% of them were for generic drugs.
Dr. Dehaan's Part D claims by kind of drug, 2024
- Generic43 claims98%
- Brand-name and other1 claims2%
Drug classes CMS tracks in Dr. Dehaan's Part D claims, 2024
- Antibiotics59%26 of 44 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Jack Douglas Dehaan takes part in Medicare
Dr. Dehaan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Jack Douglas Dehaan received $15 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Dehaan from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Genentech, Inc. paid the most, $15.
Companies that paid Dr. Dehaan the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jack Douglas Dehaan'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | 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) |
| 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. Jack Douglas Dehaan
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. Jack Douglas Dehaan's NPI number?
Dr. Jack Douglas Dehaan's NPI number is 1851975429. It was assigned on May 10, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Jack Douglas Dehaan?
Dr. Jack Douglas Dehaan is an emergency medicine physician in Mishawaka, Indiana. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Jack Douglas Dehaan practice?
Dr. Dehaan practices at 5215 Holy Cross Pkwy, Mishawaka, IN 46545. Dr. Dehaan's primary practice is Saint Joseph Mishawaka Medical Center in Mishawaka, Indiana, part of Trinity Health. Dmand AI also links Dr. Dehaan to 1 hospital, 1 therapy and rehab clinic and 1 medical group.
What is Dr. Jack Douglas Dehaan's office phone number?
The practice phone on file for Dr. Dehaan is (574) 335-5000.
What is Dr. Jack Douglas Dehaan's medical license number?
Dr. Dehaan holds Michigan license 4351048260.
Which hospitals is Dr. Jack Douglas Dehaan affiliated with?
Dr. Dehaan practices at Saint Joseph Mishawaka Medical Center in Mishawaka, Indiana. Dr. Dehaan is also affiliated with Henry Ford Genesys Hospital. Dmand AI links Dr. Dehaan to 1 more hospital.
What medical group is Dr. Jack Douglas Dehaan part of?
Dr. Dehaan is linked to Vituity. Dmand AI links Dr. Dehaan to 1 more medical group.
Does Dr. Jack Douglas Dehaan accept Medicare?
Yes. CMS lists Dr. Dehaan as accepting Medicare assignment.
Has Dr. Jack Douglas Dehaan received payments from drug or device companies?
CMS Open Payments shows $15 in general payments to Dr. Dehaan from 1 company from 2024 to 2024. The largest total came from Genentech, Inc.
How long has Dr. Jack Douglas Dehaan been practicing?
Dr. Dehaan graduated from medical school in 2020, 6 years ago.
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