Royce L. Grimsrud, OD
- Medicare patients, 2024
- 199
- Part D claims, 2024
- 260
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 6601 S Minnesota Ave, Ste 100, Sioux Falls, SD 57108
- Practice phone
- Call (605) 336-6294
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ophthalmology LTD Eye Surgery Center
Surgery Center - Medicare-Certified · Sioux Falls, South Dakota
Find Royce Grimsrud'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.
Royce L. Grimsrud is an optometrist in Sisseton, South Dakota
Royce Grimsrud practices at Ophthalmology LTD Eye Surgery Center in Sioux Falls, South Dakota.
Royce Grimsrud's NPI, 1033182936, was assigned on February 10, 2006. Royce Grimsrud graduated from Pacific University - College of Optometry in 1983. Royce Grimsrud holds South Dakota license 437.
- NPI
- 1033182936NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799722245
- NPI enumeration date
- February 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (605) 336-6294
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Royce L. Grimsrud practices in Sioux Falls and Sisseton
Royce Grimsrud's primary practice is Ophthalmology LTD Eye Surgery Center, at 6601 S Minnesota Ave, Ste 100, Sioux Falls, SD 57108. The practice phone is (605) 336-6294. Royce Grimsrud also practices at Ophthalmology Ltd, 121 E Maple St, Sisseton, SD 57262.
- Ophthalmology LTD Eye Surgery CenterPrimary6601 S Minnesota Ave, Ste 100, Sioux Falls, SD 57108Phone(605) 336-6294
- Ophthalmology Ltd121 E Maple St, Sisseton, SD 57262 · Roberts CountyPhone(605) 336-6294
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Royce L. Grimsrud is affiliated with 1 site of care
Royce Grimsrud's primary practice is Ophthalmology LTD Eye Surgery Center in Sioux Falls, South Dakota.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Royce L. Grimsrud's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Royce Grimsrud practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ophthalmology LTD Eye Surgery Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Royce L. Grimsrud is one of 242 optometrists in South Dakota
Optometrist is Royce Grimsrud's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Royce Grimsrud is licensed in South Dakota.
Specialties and state licenses
- Optometrist, South DakotaPrimary
Optometrists near Royce Grimsrud
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
Royce L. Grimsrud treated 199 Medicare patients in 2024, average age 75
CMS counts 199 Medicare patients who saw Royce Grimsrud in 2024. The largest group is 65 to 74, with 99 patients. 72% of them have high cholesterol, and 63% have high blood pressure. 6% are also on Medicaid. Their average risk score is 0.83, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Royce Grimsrud's median patient age at 70, with 55% women.
Royce Grimsrud's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Royce Grimsrud's Medicare patients by sex, 2024
- Women11055%
- Men8945%
Chronic conditions among Royce Grimsrud's Medicare patients, 2024
- High cholesterol72%
- High blood pressure63%
- Arthritis38%
- Diabetes27%
- Chronic kidney disease18%
- Ischemic heart disease18%
- Heart failure17%
- Atrial fibrillation15%
Share of Medicare patients with each condition. A patient can have several.
Royce Grimsrud's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Royce L. Grimsrud wrote 260 Medicare Part D claims in 2024
In 2024, Royce Grimsrud wrote 260 Medicare Part D claims for 76 patients. 84% of them were for generic drugs.
Royce Grimsrud's Part D claims by kind of drug, 2024
- Generic218 claims84%
- Brand-name42 claims16%
Drug classes CMS tracks in Royce Grimsrud's Part D claims, 2024
- Antibiotics4%11 of 260 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
Royce L. Grimsrud ranks in the 65th percentile for cataract surgery in Medicare
Royce Grimsrud accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 54 procedures of cataract surgery by Royce Grimsrud, more than 65% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Royce Grimsrud ranks in Medicare procedure volume
- Cataract surgery
- 65th percentile54 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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Royce L. Grimsrud graduated from Pacific University - College of Optometry
Royce Grimsrud graduated from Pacific University - College of Optometry in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Royce L. Grimsrud'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 Affiliation DataDmand AI Practice 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 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) |
| 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 Royce L. Grimsrud
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Royce L. Grimsrud's NPI number?
Royce L. Grimsrud's NPI number is 1033182936. It was assigned on February 10, 2006, and it is active in the NPI Registry.
What does Royce L. Grimsrud specialize in?
Royce L. Grimsrud is an optometrist in Sisseton, South Dakota. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Royce L. Grimsrud practice?
Royce Grimsrud practices at 6601 S Minnesota Ave, Ste 100, Sioux Falls, SD 57108. Royce Grimsrud also practices at 121 E Maple St, Sisseton, SD 57262. Royce Grimsrud's primary practice is Ophthalmology LTD Eye Surgery Center in Sioux Falls, South Dakota.
What is Royce L. Grimsrud's office phone number?
The practice phone on file for Royce Grimsrud is (605) 336-6294.
What is Royce L. Grimsrud's medical license number?
Royce Grimsrud holds South Dakota license 437.
Does Royce L. Grimsrud accept Medicare?
Yes. CMS lists Royce Grimsrud as accepting Medicare assignment.
How many Medicare patients does Royce L. Grimsrud see?
CMS counts 199 Medicare patients who saw Royce Grimsrud in 2024, with an average age of 75.
Where did Royce L. Grimsrud go to medical school?
Royce Grimsrud graduated from Pacific University - College of Optometry in 1983.
How long has Royce L. Grimsrud been practicing?
Royce Grimsrud graduated from medical school in 1983, 43 years ago.
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