Dr. David R. Dehaan, MD
- Medicare services, 2024
- 357
- Medicare patients, 2024
- 233
- Part D claims, 2024
- 153
- Hospital affiliations
- 3
- Industry payments
- $19,951
- Practice address
- 2650 Ridge Ave, Evanston, IL 60201
- Practice phone
- Call (847) 570-2000
- 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
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Dr. David R. Dehaan is a general surgeon in Evanston, Illinois
Dr. Dehaan practices at Evanston Hospital in Evanston, Illinois, part of Endeavor Health.
Dr. Dehaan's NPI, 1861467995, was assigned on February 22, 2006. Dr. Dehaan graduated from University of Michigan Medical School in 1993. Dr. Dehaan holds Illinois license 036097993.
- NPI
- 1861467995NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012802432
- NPI enumeration date
- February 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 570-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David R. Dehaan practices at Evanston Hospital in Evanston, Illinois
Dr. Dehaan's primary practice is Evanston Hospital, at 2650 Ridge Ave, Evanston, IL 60201 in Cook County. The practice phone is (847) 570-2000.
- Evanston Hospital2650 Ridge Ave, Evanston, IL 60201 · Cook CountyPhone(847) 570-2000
Source: Dmand AI Affiliation Data
Dr. David R. Dehaan is affiliated with 4 sites of care and 1 medical group
Dr. Dehaan's primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dr. Dehaan is also affiliated with Edward Hospital. The medical group on file is DuPage Medical Group. Dmand AI also links Dr. Dehaan to 1 more hospital and 1 group practice or 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. David R. 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 |
|---|---|
| Evanston Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David R. Dehaan is one of 1,217 general surgeons in Illinois
Surgery is Dr. Dehaan's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Dehaan is licensed in Illinois.
Specialties and state licenses
- Surgery, IllinoisPrimary
General surgeons near Dr. Dehaan
Counts of general surgeons 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. David R. Dehaan billed Medicare for 357 services in 2024
CMS data shows 357 Medicare services from Dr. Dehaan across 16 procedure codes in 2024, for 233 Medicare patients. Medicare paid $48,306 for them.
Dr. Dehaan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2752024: 2702%
- Surgery
- 2023: 932024: 7322%
- Lab and pathology
- 2023: 122024: 1417%
Where Dr. Dehaan's Medicare services took place, 2024
- In an office26273%
- In a facility9527%
Dr. Dehaan compared with the Illinois median for general surgeons, 2024
- Dr. Dehaan
- Illinois median
- Medicare services
- 357vs 19484% above
- Medicare patients
- 233vs 14462% above
- Part D claims
- 95vs 283.4 times
Medians across 1,031 general surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Dehaan'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. Dehaan and other general surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David R. Dehaan treated 233 Medicare patients in 2024, average age 74
CMS counts 233 Medicare patients who saw Dr. Dehaan in 2024. The largest group is 65 to 74, with 105 patients. 75% of them have high cholesterol, and 68% have high blood pressure. 6% are also on Medicaid. Their average risk score is 1.41, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Dehaan's median patient age at 68, with 61% women.
Dr. Dehaan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Dehaan's Medicare patients by sex, 2024
- Women11851%
- Men11549%
Chronic conditions among Dr. Dehaan's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis41%
- Cancer35%
- Ischemic heart disease34%
- Diabetes24%
- Chronic kidney disease21%
- Osteoporosis20%
Share of Medicare patients with each condition. A patient can have several.
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
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David R. Dehaan wrote 153 Medicare Part D claims in 2024
In 2024, Dr. Dehaan wrote 153 Medicare Part D claims for 124 patients. 100% of them were for generic drugs. CMS names the drug for 95 of them, across 1 drug with 11 or more claims each, at $98 in total drug cost. In 2023, CMS named 141 claims across 4 drugs.
Dr. Dehaan'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. Dehaan's Part D claims, 2024
- Opioids74%113 of 153 claims
- Antibiotics16%25 of 153 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: 1412024: 9533%
Drugs named by CMS: 1 in 2024, 4 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. David R. Dehaan ranks in the 83rd percentile for hernia repair (minimally invasive) in Medicare
Dr. Dehaan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 16 procedures of hernia repair (minimally invasive) by Dr. Dehaan, more than 83% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Dehaan ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 83rd percentile16 procedures
- Mastectomy
- 66th percentile12 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 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)
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Dr. David R. Dehaan received $19,951 in industry payments from 2018 to 2024
CMS Open Payments shows 66 general payments to Dr. Dehaan from 6 drug and device companies from 2018 to 2024. Education make up the largest share, 70% of the total. Intuitive Surgical, Inc. paid the most, $19,202.
General payments to Dr. Dehaan by program year, 2018 to 2024
General payments to Dr. Dehaan by kind, 2018 to 2024
- Education$14,06270%
- Travel and lodging$3,30317%
- Food and beverage$2,49212%
- Gifts$940%
Companies that paid Dr. Dehaan the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David R. Dehaan graduated from University of Michigan Medical School
Dr. Dehaan graduated from University of Michigan Medical School in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David R. 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 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. David R. 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. David R. Dehaan's NPI number?
Dr. David R. Dehaan's NPI number is 1861467995. It was assigned on February 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David R. Dehaan?
Dr. David R. Dehaan is a general surgeon in Evanston, Illinois. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. David R. Dehaan practice?
Dr. Dehaan practices at 2650 Ridge Ave, Evanston, IL 60201. Dr. Dehaan's primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dmand AI also links Dr. Dehaan to 1 hospital and 1 group practice or clinic.
What is Dr. David R. Dehaan's office phone number?
The practice phone on file for Dr. Dehaan is (847) 570-2000.
What is Dr. David R. Dehaan's medical license number?
Dr. Dehaan holds Illinois license 036097993.
Which hospitals is Dr. David R. Dehaan affiliated with?
Dr. Dehaan practices at Evanston Hospital in Evanston, Illinois. Dr. Dehaan is also affiliated with Edward Hospital. Dmand AI links Dr. Dehaan to 1 more hospital.
What medical group is Dr. David R. Dehaan part of?
Dr. Dehaan is linked to DuPage Medical Group.
Does Dr. David R. Dehaan accept Medicare?
Yes. CMS data shows Dr. Dehaan billed Medicare for 357 services in 2024, and Dr. Dehaan accepts Medicare assignment.
How many Medicare patients does Dr. David R. Dehaan see?
CMS counts 233 Medicare patients who saw Dr. Dehaan in 2024, with an average age of 74.
What services does Dr. David R. Dehaan bill to Medicare?
In 2024, Dr. Dehaan's most billed Medicare services were office visit, new patient (99204), office visit, established patient (99213) and office visit, new patient (99205).
Show 4 more questionsShow fewer questions
Where did Dr. David R. Dehaan go to medical school?
Dr. Dehaan graduated from University of Michigan Medical School in 1993.
What drugs does Dr. David R. Dehaan prescribe most?
In 2024 Medicare Part D data, Dr. Dehaan's most prescribed drugs by claims were Tramadol HCl.
Has Dr. David R. Dehaan received payments from drug or device companies?
CMS Open Payments shows $19,951 in general payments to Dr. Dehaan from 6 companies from 2018 to 2024. The largest total came from Intuitive Surgical, Inc.
How long has Dr. David R. Dehaan been practicing?
Dr. Dehaan graduated from medical school in 1993, 33 years ago.
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