NPPES file of Aug 9, 2026

Michael George Nicholas, DO

Psychiatry Physician · Yankton, SD

Michael George Nicholas, DO is a psychiatry physician with a practice address in Yankton, South Dakota, and NPI 1215687975, issued on Mar 25, 2022. Check the license (South Dakota 18678, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215687975
Name
Michael George Nicholas
Credential
DO
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
18678 SD
Self-reported in NPPES; status is on the state search
Practice location
2525 Fox Run Pkwy Ste 204, Yankton, SD 57078
Phone
(605) 665-5100
Enumerated
Mar 25, 2022
Record last updated
Jul 6, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2525 Fox Run Pkwy Ste 204

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. William Andrews, MDNeurology Physician1649487588

Verify Michael George Nicholas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
    Search for license 18678
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the South Dakota license search

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80% fewer Medicare Part D claims than the average psychiatry physician in 2024

200 Medicare Part D claims for 24 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Michael Nicholas200
  2. Specialty average1,000

Most prescribed

  1. Escitalopram Oxalate27 claims
  2. Trazodone Hcl25 claims
  3. Mirtazapine19 claims
  4. Buspirone Hcl18 claims
  5. Lorazepam14 claims
  6. Aripiprazole11 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.

Michael George Nicholas among 112 psychiatry physician records in South Dakota

Michael George Nicholas, DO is one of 112 psychiatry 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 2022, is newer than 93% of them.

  • NPI issued2022 · 93% of these records are older, 2% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 54% of these records are
  • Record last updated2026 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

9 psychiatry physician records list a practice address in Yankton

They are 9 of the 515 NPPES records with a practice address in Yankton, and 112 psychiatry physician records in South Dakota.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Alan Brevik, MDYankton, SD 570781750364113
  2. Daniel Hicks, MDYankton, SD 570781265415699
  3. Bradley Kleinsasser, M.D.Yankton, SD 570781336275320
  4. Josette Lindahl, M.D.Yankton, SD 570781295861185
  5. David Olson, MDYankton, SD 570781902867609
  6. Jime Rivera, CNPYankton, SD 570781033719661
  7. Ramesh Somepalli, MDYankton, SD 570781689699811
  8. Chung Tuan, M.D.Yankton, SD 570781972639862

Common questions

What is Michael George Nicholas, DO's NPI number?

Michael George Nicholas, DO's National Provider Identifier (NPI) is 1215687975, issued on Mar 25, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Michael George Nicholas, DO located?

The NPPES record lists a practice address at 2525 Fox Run Pkwy Ste 204, Yankton, SD, 57078. Phone: (605) 665-5100. Providers update this record themselves, so call before visiting.

How can I verify Michael George Nicholas, DO's license?

NPPES lists South Dakota license number 18678, 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 Michael George Nicholas, DO prescribe under Medicare Part D?

In 2024, Michael George Nicholas, DO had 200 Medicare Part D claims for 24 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.