NPPES file of Aug 9, 2026

William C. Fuller, M.D.

Psychiatry Physician · Sioux Falls, SD

William C. Fuller, M.D. is a psychiatry physician with a practice address in Sioux Falls, South Dakota, and NPI 1518939024, issued on Feb 7, 2006. Check the license (South Dakota 2080, 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
1518939024
Name
William C. Fuller
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
2080 SD
Self-reported in NPPES; status is on the state search
Practice location
4400 W 69TH St, Sioux Falls, SD 57108
Phone
(605) 322-5700
Enumerated
Feb 7, 2006
Record last updated
Dec 11, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(605) 322-5704
Medicaid IDs
46022474352 NE
7100103 SD
1958108 IA
12200 ND
Medicare enrollment
Enrolled (PECOS I20050914000614); may accept Medicare assignment
Medical or professional school
University Of Nebraska College Of Medicine, 1972
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

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

  1. Julia Alzoubaidi, PH.D.School Psychologist1134674476
  2. Berne Bahnson, M.D.Psychiatry Physician1871565499
  3. Jacob BentsonSocial Worker1508799891
  4. Michael Bergan, M.D.Neurology Physician1487888012
  5. Ann Bowden, MDChild & Adolescent Psychiatry Physician1134389299
  6. Alyssa Butterfield, PHARMDPharmacist1679454318

Verify William C. Fuller 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 2080
    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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47% more Medicare Part D claims than the average psychiatry physician in 2024

1,465 Medicare Part D claims for 86 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. William Fuller1,465
  2. Specialty average1,000

Most prescribed

  1. Clonazepam113 claims
  2. Alprazolam92 claims
  3. Lorazepam66 claims
  4. Mirtazapine64 claims
  5. Trazodone Hcl57 claims
  6. Topiramate43 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.

Industry payments in 2024: $551.83

12 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Fuller$551.83
  2. Specialty average$4,954.93

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Psychiatry Physician providers in South Dakota

There are 112 psychiatry physician records in South Dakota.

Other psychiatry physician records in South Dakota

  1. Arslan Ahmed, DOFort Meade, SD1649626151
  2. Seth Ahrendt, M.D.Sioux Falls, SD1639565757
  3. Lisa Amiotte, M.D.Sioux Falls, SD1871565333
  4. Kent Andre, MDSioux Falls, SD1245425974
  5. Natalie Armijo, M.D.Sioux Falls, SD1932246881
  6. Jennifer Assam, MDSioux Falls, SD1982198776
  7. Berne Bahnson, M.D.Sioux Falls, SD1871565499
  8. Francis Bandettini, D.O.Sioux Falls, SD1942325428
  9. Christiaan Bates, MDSioux Falls, SD1235795329
  10. Abbey Bauman, MDSioux Falls, SD1467072066

Common questions

What is William C. Fuller, M.D.'s NPI number?

William C. Fuller, M.D.'s National Provider Identifier (NPI) is 1518939024, issued on Feb 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William C. Fuller, M.D. located?

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

How can I verify William C. Fuller, M.D.'s license?

NPPES lists South Dakota license number 2080, 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 William C. Fuller, M.D. prescribe under Medicare Part D?

In 2024, William C. Fuller, M.D. had 1,465 Medicare Part D claims for 86 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.