Marah Jo Van Diest, MD
Family Medicine Physician · Sioux Falls, SD
Marah Jo Van Diest, MD is a family medicine physician with a practice address in Sioux Falls, South Dakota, and NPI 1952930273, issued on Apr 7, 2020. Check the license (South Dakota 14570, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- Marah Jo Van Diest
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 14570 SD
Self-reported in NPPES; status is on the state search - Practice location
- 1600 S Highline Ave, Sioux Falls, SD 57110
- Phone
- (605) 504-5600
- Enumerated
- Apr 7, 2020
- Record last updated
- Aug 18, 2023
- Medicare enrollment
- Enrolled (PECOS I20220405000546); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 601 in South Dakota → Look up another NPI →
Also registered at 1600 S Highline Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lianne Farley, M.D.Pediatrics Physician1700049780
- Jill Pitz, APRN, FNP-BCFamily Nurse Practitioner1659924496
- Whitney Weber, DNP, CPNP-PCPediatric Nurse Practitioner1316544638
Verify Marah Jo Van Diest 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 14570Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average family medicine physician in 2024
530 Medicare Part D claims for 68 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Levothyroxine Sodium31 claims
- Olmesartan Medoxomil29 claims
- Amlodipine Besylate23 claims
- Atorvastatin Calcium21 claims
- Omeprazole19 claims
- Fluoxetine Hcl17 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
- Avera MckennanSioux Falls, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marah Jo Van Diest among 601 family medicine physician records in South Dakota
Marah Jo Van Diest, MD is one of 601 family medicine physician records with a practice address in South Dakota. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 89% of them.
- NPI issued2020 · 89% of these records are older, 9% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2020 · median 2008 among the 393 with a school on file
- Record last updated2023 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
195 family medicine physician records list a practice address in Sioux Falls
They are 195 of the 6,563 NPPES records with a practice address in Sioux Falls, and 601 family medicine physician records in South Dakota.
All 601 in South Dakota → Every provider in Sioux Falls → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Muna Ashraf, MDSioux Falls, SD 571101710249248
- Seth Barker, MDSioux Falls, SD 571101538747571
- Scott Ecklund, MDSioux Falls, SD 571101306892633
- David Ellerbusch, M.D.Sioux Falls, SD 571101972507713
- Derek Greene, MDSioux Falls, SD 571101720012719
- Elizabeth Jensen, DOSioux Falls, SD 571101780695437
- Saige JensenSioux Falls, SD 571101770150302
- Jennifer Klein, MDSioux Falls, SD 571101790731024
Common questions
What is Marah Jo Van Diest, MD's NPI number?
Marah Jo Van Diest, MD's National Provider Identifier (NPI) is 1952930273, issued on Apr 7, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Marah Jo Van Diest, MD located?
The NPPES record lists a practice address at 1600 S Highline Ave, Sioux Falls, SD, 57110. Phone: (605) 504-5600. Providers update this record themselves, so call before visiting.
How can I verify Marah Jo Van Diest, MD's license?
NPPES lists South Dakota license number 14570, 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 Marah Jo Van Diest, MD prescribe under Medicare Part D?
In 2024, Marah Jo Van Diest, MD had 530 Medicare Part D claims for 68 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.