NPPES file of Aug 9, 2026

David Schlagel, M.D.

Psychiatry Physician · Sioux Falls, SD

David Schlagel, M.D. is a psychiatry physician with a practice address in Sioux Falls, South Dakota, and NPI 1861512766, issued on Apr 2, 2007. Check the license (South Dakota 10467, 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
1861512766
Name
David Schlagel
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
10467 SD
4301079677 MI
53776 WI
Self-reported in NPPES; status is on the state search
Practice location
4400 W 69TH St Ste 1500, Sioux Falls, SD 57108
Phone
(605) 322-5700
Enumerated
Apr 2, 2007
Record last updated
Jul 21, 2022
Medicare enrollment
Enrolled (PECOS I20170829001729); may accept Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2002
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4400 W 69TH St Ste 1500

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

  1. Hannah Devries, MDAddiction Psychiatry Physician1023547486
  2. Trisha Gaudig, PHDClinical Psychologist1821524836
  3. Brenda Nour, PH.D.Clinical Psychologist1073840260
  4. Jennifer Oligmueller, M.D.Psychiatry Physician1982136461
  5. Justin VonkPsychiatric/Mental Health Nurse Practitioner1063372654

Verify David Schlagel 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 10467
    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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3.9 times the Medicare Part D claims of the average psychiatry physician in 2024

3,858 Medicare Part D claims for 236 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. David Schlagel3,858
  2. Specialty average1,000

Most prescribed

  1. Trazodone Hcl417 claims
  2. Quetiapine Fumarate293 claims
  3. Mirtazapine213 claims
  4. Sertraline Hcl208 claims
  5. Buspirone Hcl176 claims
  6. Bupropion Xl159 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.

David Schlagel among 112 psychiatry physician records in South Dakota

David Schlagel, M.D. 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 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 46% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 54% of these records are
  • Graduated2002 · median 2007 among the 61 with a school on file
  • Record last updated2022 · 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).

Psychiatry Physician providers in South Dakota

There are 112 psychiatry physician records in South Dakota.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Lisa Amiotte, M.D.Sioux Falls, SD 571081871565333
  2. Berne Bahnson, M.D.Sioux Falls, SD 571081871565499
  3. Heather Chester Adam, M.D.Sioux Falls, SD 571081366538233
  4. Matthew Eggers, MDSioux Falls, SD 571081780793976
  5. William Fuller, M.D.Sioux Falls, SD 571081518939024
  6. Christopher Hanley, MDSioux Falls, SD 571081265655948
  7. Clifford McNaughton, M.D., DDSSioux Falls, SD 571081184697633
  8. Melissa Spanggaard, D.O.Sioux Falls, SD 571081295902773

Common questions

What is David Schlagel, M.D.'s NPI number?

David Schlagel, M.D.'s National Provider Identifier (NPI) is 1861512766, issued on Apr 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is David Schlagel, M.D. located?

The NPPES record lists a practice address at 4400 W 69TH St Ste 1500, Sioux Falls, SD, 57108. Phone: (605) 322-5700. Providers update this record themselves, so call before visiting.

How can I verify David Schlagel, M.D.'s license?

NPPES lists South Dakota license number 10467, 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 David Schlagel, M.D. prescribe under Medicare Part D?

In 2024, David Schlagel, M.D. had 3,858 Medicare Part D claims for 236 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.