Ralph Jacob Dehaan, OD
- Medicare patients, 2024
- 425
- Part D claims, 2024
- 309
- Industry payments
- $66
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 823 Franklin St, Pella, IA 50219
- Practice phone
- Call (515) 276-2288
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Eyecare Partners
Pella, Iowa
Find Ralph 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.
Ralph Jacob Dehaan is an optometrist in Pella, Iowa
Ralph Dehaan practices at Eyecare Partners in Pella, Iowa.
Ralph Dehaan's NPI, 1790763811, was assigned on January 9, 2006. Ralph Dehaan graduated from Illinois College of Optometry at Chicago in 1985. Ralph Dehaan holds Iowa license 1831.
- NPI
- 1790763811NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103814512
- NPI enumeration date
- January 9, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (515) 276-2288
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Ralph Jacob Dehaan practices at Eyecare Partners in Pella, Iowa
Ralph Dehaan's primary practice is Eyecare Partners, at 823 Franklin St, Pella, IA 50219 in Marion County. The practice phone is (515) 276-2288.
- Eyecare Partners823 Franklin St, Pella, IA 50219 · Marion CountyPhone(515) 276-2288
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Ralph Jacob Dehaan is affiliated with 2 sites of care and 1 medical group
Ralph Dehaan's primary practice is Eyecare Partners in Pella, Iowa. Dmand AI also links Ralph Dehaan to 1 group practice or clinic and 1 medical group, 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 Ralph Jacob Dehaan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ralph Dehaan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Eyecare Partners | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Ralph Jacob Dehaan is one of 501 optometrists in Iowa
Optometrist is Ralph Dehaan's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Ralph Dehaan is licensed in Iowa.
Specialties and state licenses
- Optometrist, IowaPrimary
Optometrists near Ralph Dehaan
Counts of optometrists 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
Ralph Jacob Dehaan treated 425 Medicare patients in 2024, average age 74
CMS counts 425 Medicare patients who saw Ralph Dehaan in 2024. The largest group is 65 to 74, with 186 patients. 72% of them have high cholesterol, and 66% have high blood pressure. 8% are also on Medicaid. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Ralph Dehaan's median patient age at 58, with 53% women.
Ralph Dehaan's Medicare patients by age, 2024
Ralph Dehaan's Medicare patients by sex, 2024
- Women23455%
- Men19145%
Chronic conditions among Ralph Dehaan's Medicare patients, 2024
- High cholesterol72%
- High blood pressure66%
- Arthritis37%
- Chronic kidney disease23%
- Diabetes22%
- Osteoporosis19%
- Mood disorders18%
- Depression17%
Share of Medicare patients with each condition. A patient can have several.
Ralph 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 58
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Ralph Jacob Dehaan wrote 309 Medicare Part D claims in 2024
In 2024, Ralph Dehaan wrote 309 Medicare Part D claims for 78 patients. 75% of them were for generic drugs.
Ralph Dehaan's Part D claims by kind of drug, 2024
- Generic231 claims75%
- Brand-name78 claims25%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Ralph Jacob Dehaan ranks in the 49th percentile for cataract surgery in Medicare
Ralph Dehaan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 25 procedures of cataract surgery by Ralph Dehaan, more than 49% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Ralph Dehaan ranks in Medicare procedure volume
- Cataract surgery
- 49th percentile25 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Ralph Jacob Dehaan received $66 in industry payments in 2025
CMS Open Payments shows 1 general payment to Ralph Dehaan from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. CooperVision Inc. paid the most, $66.
Companies that paid Ralph Dehaan the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Ralph Jacob Dehaan graduated from Illinois College of Optometry at Chicago
Ralph Dehaan graduated from Illinois College of Optometry at Chicago in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Ralph Jacob 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 | 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 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 (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 Ralph Jacob 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 Ralph Jacob Dehaan's NPI number?
Ralph Jacob Dehaan's NPI number is 1790763811. It was assigned on January 9, 2006, and it is active in the NPI Registry.
What does Ralph Jacob Dehaan specialize in?
Ralph Jacob Dehaan is an optometrist in Pella, Iowa. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Ralph Jacob Dehaan practice?
Ralph Dehaan practices at 823 Franklin St, Pella, IA 50219. Ralph Dehaan's primary practice is Eyecare Partners in Pella, Iowa. Dmand AI also links Ralph Dehaan to 1 group practice or clinic and 1 medical group.
What is Ralph Jacob Dehaan's office phone number?
The practice phone on file for Ralph Dehaan is (515) 276-2288.
What is Ralph Jacob Dehaan's medical license number?
Ralph Dehaan holds Iowa license 1831.
Does Ralph Jacob Dehaan accept Medicare?
Yes. CMS lists Ralph Dehaan as accepting Medicare assignment.
How many Medicare patients does Ralph Jacob Dehaan see?
CMS counts 425 Medicare patients who saw Ralph Dehaan in 2024, with an average age of 74.
Where did Ralph Jacob Dehaan go to medical school?
Ralph Dehaan graduated from Illinois College of Optometry at Chicago in 1985.
Has Ralph Jacob Dehaan received payments from drug or device companies?
CMS Open Payments shows $66 in general payments to Ralph Dehaan from 1 company from 2025 to 2025. The largest total came from CooperVision Inc.
How long has Ralph Jacob Dehaan been practicing?
Ralph Dehaan graduated from medical school in 1985, 41 years ago.
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