Martha Holstein, MD
Internal Medicine Physician · Yankton, SD
Martha Holstein, MD is an internal medicine physician with a practice address in Yankton, South Dakota, and NPI 1447601141, issued on Jun 24, 2016. Check the license on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- Martha Holstein
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 7764 NE
Self-reported in NPPES; status is on the state search - Practice location
- 1104 W 8TH St, Yankton, SD 57078
- Phone
- (605) 665-7841
- Enumerated
- Jun 24, 2016
- Record last updated
- Aug 6, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200826001886); accepts Medicare assignment
- Medical or professional school
- Sanford School Of Medicine Of University Of South Dakota, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 247 in South Dakota → Look up another NPI →
Also registered at 1104 W 8TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Cassandra Arens, PAPhysician Assistant1033522966
- Sarah ArensPhysician Assistant1669912291
- Amber Authier, PA-CMedical Physician Assistant1518679851
- Clarissa Barnes, M.D.Internal Medicine Physician1770758757
- Leann Bassing, M.D.Rheumatology Physician1871784124
Verify Martha Holstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic ExaminersCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% more Medicare Part D claims than the average internal medicine physician in 2024
5,474 Medicare Part D claims for 375 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 153 claims were for opioids.
Most prescribed
- Lisinopril284 claims
- Levothyroxine Sodium200 claims
- Rosuvastatin Calcium197 claims
- Atorvastatin Calcium193 claims
- Amlodipine Besylate155 claims
- Omeprazole150 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 2 group practices
- Sacred Heart Health ServicesYankton, SD
- Yankton Medical Clinic PCYankton, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Martha Holstein among 247 internal medicine physician records in South Dakota
Martha Holstein, MD is one of 247 internal 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 2016, is newer than 75% of them.
- NPI issued2016 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2016 · median 2008 among the 146 with a school on file
- Record last updated2020 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 internal medicine physician records list a practice address in Yankton
They are 15 of the 515 NPPES records with a practice address in Yankton, and 247 internal medicine physician records in South Dakota.
All 247 in South Dakota → Every provider in Yankton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Clarissa Barnes, M.D.Yankton, SD 570781770758757
- Theophilus Bortier, MDYankton, SD 570781861141939
- Gregory Erickson, MDYankton, SD 570781306989090
- Susan Fanta, MDYankton, SD 570781326049313
- Jennifer Fillaus, D.O.Yankton, SD 570781760696967
- John Frank, MDYankton, SD 570781669473443
- Tyler Hanson, M.D.Yankton, SD 570781700800885
- Michael Hein, MDYankton, SD 570781346241148
Common questions
What is Martha Holstein, MD's NPI number?
Martha Holstein, MD's National Provider Identifier (NPI) is 1447601141, issued on Jun 24, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Martha Holstein, MD located?
The NPPES record lists a practice address at 1104 W 8TH St, Yankton, SD, 57078. Phone: (605) 665-7841. Providers update this record themselves, so call before visiting.
How can I verify Martha Holstein, MD's license?
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 Martha Holstein, MD prescribe under Medicare Part D?
In 2024, Martha Holstein, MD had 5,474 Medicare Part D claims for 375 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.