Ralph Frederick Reeder, MD
Neurological Surgery Physician · Dakota Dunes, SD
Ralph Frederick Reeder, MD is a neurological surgery physician with a practice address in Dakota Dunes, South Dakota, and NPI 1811990161, issued on May 31, 2005. Check the license (South Dakota 3409, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- Ralph Frederick Reeder
- Credential
- MD
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- 3409 SD
Self-reported in NPPES; status is on the state search - Practice location
- 575 N Sioux Point RD, Dakota Dunes, SD 57049
- Phone
- (605) 217-2667
- Enumerated
- May 31, 2005
- Record last updated
- Aug 6, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (605) 217-2900
- Medicare enrollment
- Enrolled (PECOS I20100813000832); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 27 in South Dakota → Look up another NPI →
Also registered at 575 N Sioux Point RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tyson AllenSurgical Physician Assistant1053911123
- Aaron Althaus, MDOrthopaedic Surgery Physician1518195619
- Brittany Anderson, CNPFamily Nurse Practitioner1770969164
- Trisha Anderson, PA-CSurgical Physician Assistant1932734191
- Margaret Andriano-Hazel, PTPhysical Therapist1265128250
- Tiffany Becker, PTPhysical Therapist1699059246
Verify Ralph Frederick Reeder in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
Search for license 3409Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average neurological surgery physician in 2024
19 Medicare Part D claims for 11 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Mercy Clinics IncDes Moines, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ralph Frederick Reeder among 27 neurological surgery physician records in South Dakota
Ralph Frederick Reeder, MD is one of 27 neurological surgery physician records with a practice address in South Dakota. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1981 · median 2005 among the 15 with a school on file
- Record last updated2010 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 neurological surgery physician records list a practice address in Dakota Dunes
They are 8 of the 326 NPPES records with a practice address in Dakota Dunes, and 27 neurological surgery physician records in South Dakota.
All 27 in South Dakota → Every provider in Dakota Dunes → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Luis Diaz-Aguilar, MDDakota Dunes, SD 570491306342555
- Quentin Durward, MDDakota Dunes, SD 570491457354383
- Matthew Johnson, MD, MPHDakota Dunes, SD 570491376688150
- Hendrik Klopper, MDDakota Dunes, SD 570491942429394
- John Pracyk, MD, PHD, MBADakota Dunes, SD 570491649216920
- Thorir Ragnarsson, MDDakota Dunes, SD 570491013910363
- Grant Shumaker, MDDakota Dunes, SD 570491841265139
- Seokchun LimSioux Falls, SD 571041154775781
Common questions
What is Ralph Frederick Reeder, MD's NPI number?
Ralph Frederick Reeder, MD's National Provider Identifier (NPI) is 1811990161, issued on May 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ralph Frederick Reeder, MD located?
The NPPES record lists a practice address at 575 N Sioux Point RD, Dakota Dunes, SD, 57049. Phone: (605) 217-2667. Providers update this record themselves, so call before visiting.
How can I verify Ralph Frederick Reeder, MD's license?
NPPES lists South Dakota license number 3409, as entered by the provider. Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ralph Frederick Reeder, MD prescribe under Medicare Part D?
In 2024, Ralph Frederick Reeder, MD had 19 Medicare Part D claims for 11 beneficiaries; the average among neurological surgery physician prescribers was 172. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.