Dr. Ryan Lowell Geraets, MD
- Medicare services, 2024
- 55,089
- Medicare patients, 2024
- 898
- Part D claims, 2024
- 705
- Hospital affiliations
- 1
- Industry payments
- $7,874
- 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 Dr. Geraets' professional email, personal email and mobile number
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Dr. Ryan Lowell Geraets is an ophthalmologist in Sioux Falls, South Dakota
Dr. Geraets practices at Ophthalmology LTD Eye Surgery Center in Sioux Falls, South Dakota.
Dr. Geraets' NPI, 1154441608, was assigned on March 29, 2007. Dr. Geraets graduated from Sanford School of Medicine of University of South Dakota in 2004. Dr. Geraets holds South Dakota license 7461.
- NPI
- 1154441608NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800980756
- NPI enumeration date
- March 29, 2007
- 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
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ryan Lowell Geraets practices at Ophthalmology LTD Eye Surgery Center in Sioux Falls, South Dakota
Dr. Geraets' 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.
- Ophthalmology LTD Eye Surgery Center6601 S Minnesota Ave, Ste 100, Sioux Falls, SD 57108Phone(605) 336-6294
Source: Dmand AI Affiliation Data
Dr. Ryan Lowell Geraets is affiliated with 3 sites of care and 1 medical group
Dr. Geraets' primary practice is Ophthalmology LTD Eye Surgery Center in Sioux Falls, South Dakota. Dr. Geraets is also affiliated with Avera McKennan Hospital & University Health Center. Dmand AI also links Dr. Geraets to 1 more group practice or 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. Ryan Lowell Geraets' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Geraets practices, 3 sites in all. 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 |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ryan Lowell Geraets is one of 43 ophthalmologists in South Dakota
Ophthalmology is Dr. Geraets' primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Geraets is licensed in South Dakota.
Specialties and state licenses
- Ophthalmology, South DakotaPrimary
Ophthalmologists near Dr. Geraets
Counts of ophthalmologists 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. Ryan Lowell Geraets billed Medicare for 55,089 services in 2024
CMS data shows 55,089 Medicare services from Dr. Geraets across 18 procedure codes in 2024, for 898 Medicare patients. Medicare paid $3,040,988 for them.
Dr. Geraets' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 39,2292024: 48,96825%
- Tests and treatments
- 2023: 3,5182024: 3,4362%
- Surgery
- 2023: 2,4172024: 2,3423%
- Office and hospital visits
- 2023: 3452024: 3431%
- Imaging
- 2023: 112024: 0100%
Where Dr. Geraets' Medicare services took place, 2024
- In an office55,071100%
- In a facility180%
Dr. Geraets compared with the South Dakota median for ophthalmologists, 2024
- Dr. Geraets
- South Dakota median
- Medicare services
- 55,089vs 1,58434.8 times
- Medicare patients
- 898vs 69429% above
- Part D claims
- 472vs 31649% above
Medians across 51 ophthalmologists in South Dakota with Dmand AI profiles that report each measure.
Dr. Geraets' 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. Geraets and other ophthalmologists in South Dakota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ryan Lowell Geraets treated 898 Medicare patients in 2024, average age 79
CMS counts 898 Medicare patients who saw Dr. Geraets in 2024. The largest group is 85 and over, with 295 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.51, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Geraets' median patient age at 75, with 58% women.
Dr. Geraets' Medicare patients by age, 2024
Dr. Geraets' Medicare patients by sex, 2024
- Women53660%
- Men36240%
Chronic conditions among Dr. Geraets' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis42%
- Diabetes36%
- Chronic kidney disease33%
- Ischemic heart disease29%
- Atrial fibrillation21%
- Heart failure21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Geraets' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ryan Lowell Geraets wrote 705 Medicare Part D claims in 2024
In 2024, Dr. Geraets wrote 705 Medicare Part D claims for 203 patients. 74% of them were for generic drugs. CMS names the drug for 472 of them, across 11 drugs with 11 or more claims each, at $9,871 in total drug cost. In 2023, CMS named 498 claims across 11 drugs.
Dr. Geraets' Part D claims by kind of drug, 2024
- Generic525 claims74%
- Brand-name180 claims26%
Dr. Geraets' 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. Geraets' Part D claims, 2024
- Antibiotics2%13 of 705 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: 4982024: 4725%
Drugs named by CMS: 11 in 2024, 11 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
How Dr. Ryan Lowell Geraets takes part in Medicare
Dr. Geraets 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. Ryan Lowell Geraets received $7,874 in industry payments from 2017 to 2025
CMS Open Payments shows 37 general payments to Dr. Geraets from 20 drug and device companies from 2017 to 2025. Ownership or investment make up the largest share, 70% of the total. US Retina LLC paid the most, $5,525.
General payments to Dr. Geraets by program year, 2017 to 2025
General payments to Dr. Geraets by kind, 2017 to 2025
- Ownership or investment$5,52570%
- Food and beverage$2,30529%
- Education$431%
Companies that paid Dr. Geraets 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. Ryan Lowell Geraets graduated from Sanford School of Medicine of University of South Dakota
Dr. Geraets graduated from Sanford School of Medicine of University of South Dakota in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ryan Lowell Geraets'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) |
| 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. Ryan Lowell Geraets
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. Ryan Lowell Geraets' NPI number?
Dr. Ryan Lowell Geraets' NPI number is 1154441608. It was assigned on March 29, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryan Lowell Geraets?
Dr. Ryan Lowell Geraets is an ophthalmologist in Sioux Falls, South Dakota. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Ryan Lowell Geraets practice?
Dr. Geraets practices at 6601 S Minnesota Ave, Ste 100, Sioux Falls, SD 57108. Dr. Geraets' primary practice is Ophthalmology LTD Eye Surgery Center in Sioux Falls, South Dakota. Dmand AI also links Dr. Geraets to 1 group practice or clinic and 1 medical group.
What is Dr. Ryan Lowell Geraets' office phone number?
The practice phone on file for Dr. Geraets is (605) 336-6294.
What is Dr. Ryan Lowell Geraets' medical license number?
Dr. Geraets holds South Dakota license 7461.
Which hospitals is Dr. Ryan Lowell Geraets affiliated with?
Dr. Geraets is affiliated with Avera McKennan Hospital & University Health Center.
Does Dr. Ryan Lowell Geraets accept Medicare?
Yes. CMS data shows Dr. Geraets billed Medicare for 55,089 services in 2024, and Dr. Geraets accepts Medicare assignment.
How many Medicare patients does Dr. Ryan Lowell Geraets see?
CMS counts 898 Medicare patients who saw Dr. Geraets in 2024, with an average age of 79.
What services does Dr. Ryan Lowell Geraets bill to Medicare?
In 2024, Dr. Geraets' most billed Medicare services were injected or infused drug (J2777), eye exam or test (92134) and surgery: eye (67028).
Where did Dr. Ryan Lowell Geraets go to medical school?
Dr. Geraets graduated from Sanford School of Medicine of University of South Dakota in 2004.
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What drugs does Dr. Ryan Lowell Geraets prescribe most?
In 2024 Medicare Part D data, Dr. Geraets' most prescribed drugs by claims were Prednisolone Acetate, Polymyxin B Sul-Trimethoprim and Atropine Sulfate.
Has Dr. Ryan Lowell Geraets received payments from drug or device companies?
CMS Open Payments shows $7,874 in general payments to Dr. Geraets from 20 companies from 2017 to 2025. The largest total came from US Retina LLC.
How long has Dr. Ryan Lowell Geraets been practicing?
Dr. Geraets graduated from medical school in 2004, 22 years ago.
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