Michael S. Hein, MD
Internal Medicine Physician · Yankton, SD
Michael S. Hein, MD is an internal medicine physician with a practice address in Yankton, South Dakota, and NPI 1346241148, issued on Aug 3, 2005. Check the license (South Dakota 4854, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Michael S. Hein
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4854 SD
Self-reported in NPPES; status is on the state search - Practice location
- 1104 W 8TH St, Yankton, SD 57078
- Phone
- (605) 665-7841
- Enumerated
- Aug 3, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (605) 665-0546
- Medicaid ID
- 6004200 SD
- 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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- Amber Authier, PA-CMedical Physician Assistant1518679851
- Clarissa Barnes, M.D.Internal Medicine Physician1770758757
- Leann Bassing, M.D.Rheumatology Physician1871784124
Verify Michael S. Hein 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 4854Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Michael S. Hein among 247 internal medicine physician records in South Dakota
Michael S. Hein, 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 not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2026 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
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
- Martha Holstein, MDYankton, SD 570781447601141
Common questions
What is Michael S. Hein, MD's NPI number?
Michael S. Hein, MD's National Provider Identifier (NPI) is 1346241148, issued on Aug 3, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Michael S. Hein, 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 Michael S. Hein, MD's license?
NPPES lists South Dakota license number 4854, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.