Andrew John Ridder, M.D.
Neurology Physician · Sioux Falls, SD
Andrew John Ridder, M.D. is a neurology physician with a practice address in Sioux Falls, South Dakota, and NPI 1285993253, issued on May 11, 2012. Check the license (South Dakota 10894, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- Andrew John Ridder
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- 10894 SD
4301102371 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1301 S Cliff Ave Ste 506, Sioux Falls, SD 57105
- Phone
- (605) 335-0844
- Enumerated
- May 11, 2012
- Record last updated
- Sep 20, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (605) 335-3951
- Medicare enrollment
- Enrolled (PECOS I20180711003857); accepts Medicare assignment
- Medical or professional school
- Sanford School Of Medicine Of University Of South Dakota, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 51 in South Dakota → Look up another NPI →
Also registered at 1301 S Cliff Ave Ste 506
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamie Busch, NPNurse Practitioner1306312848
- Allison Christensen, CNPFamily Nurse Practitioner1962028282
- Ellen Farrell, PA-CPhysician Assistant1386350171
- Caitlin Hof, MDNeurology Physician1710470836
- Maddie Jans, PA-CPhysician Assistant1942741277
- Lori LawsonNurse Practitioner1104228410
Verify Andrew John Ridder 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 10894Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average neurology physician in 2024
4,002 Medicare Part D claims for 624 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Carbidopa-Levodopa874 claims
- Gabapentin324 claims
- Carbidopa-Levodopa Er264 claims
- Donepezil Hcl217 claims
- Propranolol Hcl Er166 claims
- Duloxetine Hcl163 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.
Industry payments in 2024: $1,680.35
14 payments; by number, the most common kind was food and beverage; the largest payer was Amneal Pharmaceuticals LLC. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Avera MckennanSioux Falls, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew John Ridder among 51 neurology physician records in South Dakota
Andrew John Ridder, M.D. is one of 51 neurology physician records with a practice address in South Dakota. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 59% of them.
- NPI issued2012 · 59% of these records are older, 39% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2012 · median 2009 among the 41 with a school on file
- Record last updated2018 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in South Dakota
There are 51 neurology physician records in South Dakota.
All 51 in South Dakota → Every provider in Sioux Falls → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Arsalan Anwar, M.D.Sioux Falls, SD 571051760001838
- Jeffrey Boyle, MD/PHDSioux Falls, SD 571051326273681
- Bonnie Bunch, MDSioux Falls, SD 571051265485312
- Caitlin Hof, MDSioux Falls, SD 571051710470836
- Steven Julius, M.D.Sioux Falls, SD 571051891757258
- Warren Opheim, MDSioux Falls, SD 571051396751525
- Nicholas Purcell, MDSioux Falls, SD 571051861057598
- William Rossing, MDSioux Falls, SD 571051083621395
Common questions
What is Andrew John Ridder, M.D.'s NPI number?
Andrew John Ridder, M.D.'s National Provider Identifier (NPI) is 1285993253, issued on May 11, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Andrew John Ridder, M.D. located?
The NPPES record lists a practice address at 1301 S Cliff Ave Ste 506, Sioux Falls, SD, 57105. Phone: (605) 335-0844. Providers update this record themselves, so call before visiting.
How can I verify Andrew John Ridder, M.D.'s license?
NPPES lists South Dakota license number 10894, 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 Andrew John Ridder, M.D. prescribe under Medicare Part D?
In 2024, Andrew John Ridder, M.D. had 4,002 Medicare Part D claims for 624 beneficiaries; the average among neurology physician prescribers was 1,370. 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.