Doctor profile · Federal record

Dr. William Fuller, M.D.

Psychiatry Physician (CMS: Psychiatry) · Sioux Falls, SD

  • NPI 1518939024
  • Accepts Medicare
  • 54 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4400 W 69Th St, Ste 1500
Sioux Falls, SD 571088170
(605) 322-5700
fax (605) 322-5704
Mailing address
2400 S. Minnesota Ave, Ste 100
Sioux Falls, SD 571053762

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
December 11, 2013
Year of graduation
1972 — 54 yrs since
Specialty taxonomy
2084P0800X — NUCC code
State license (1)
South Dakota #2080
Medicaid (5)
NE #46022474352 · SD #7100103 · IA #1958108 · ND #12200 · MN #394885400

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1518939024. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
216
Distinct HCPCS
2
Medicare allowed
$21,622
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 197 111 $103
99213 Established patient office or other outpatient visit, 20-29 minutes 19 17 $71

In context: peer comparison

Among 13 peers in Sioux Falls Psychiatry Physician, average services per provider: 109. This provider delivers 2.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$552
Transactions
12
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
E.R. Squibb & Sons, L.L.C. 2 $200.42
Tris Pharma INC 1 $124.14
Teva Pharmaceuticals USA, INC. 1 $100.98
Janssen Pharmaceuticals, INC 3 $55.23
Neurocrine Biosciences, INC. 2 $28.84
Otsuka America Pharmaceutical, INC. 1 $16.69
Ironshore Pharmaceuticals INC. 1 $13.55
Corium, LLC 1 $11.98

By nature of payment

Food and Beverage
$552

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
787
Patients
62
Total drug cost
$18,149
Drug Type Claims Patients Total cost
Clonazepam Generic 103 24 $1,384
Lorazepam Generic 98 26 $1,372
Alprazolam Generic 85 0 $1,708
Mirtazapine Generic 58 12 $921
Trazodone Hcl Generic 53 0 $801
Bupropion Xl (Bupropion Hcl) Brand 48 0 $1,478
Fluoxetine Hcl Generic 42 0 $718
Olanzapine Generic 41 0 $671
Prazosin Hcl Generic 41 0 $794
Gabapentin Generic 40 0 $678

Frequently asked questions

Auto-generated from federal data
What is Dr. William Fuller's medical specialty?
Dr. William Fuller practices Psychiatry Physician in Sioux Falls, SD.
Where does Dr. William Fuller practice?
Dr. William Fuller practices at 4400 W 69Th St, Sioux Falls, SD 571088170. Office phone: 6053225700.
What is Dr. William Fuller's NPI?
Dr. William Fuller's National Provider Identifier (NPI) is 1518939024, issued by NPPES.
Does Dr. William Fuller accept Medicare assignment?
Yes. Dr. William Fuller accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Fuller commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.