Doctor profile · Federal record

Dr. Weldon Mallgren, D.O.

Psychiatry Physician (CMS: Psychiatry) · Claremore, OK

  • NPI 1841384021
  • Accepts Medicare
  • 33 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
17599 S Highway 88
Claremore, OK 740170801
(918) 342-9530
fax (918) 342-9533
Mailing address
114 W Delaware Ave
Nowata, OK 740482601

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
March 1, 2011
Year of graduation
1993 — 33 yrs since
Specialty taxonomy
2084P0800X — NUCC code
State license (1)
Oklahoma #2466
Medicaid
OK #100227390C

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841384021. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
24
Distinct HCPCS
1
Medicare allowed
$2,249
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 24 19 $94

In context: peer comparison

Among 2 peers in Claremore Psychiatry Physician, average services per provider: 294. This provider delivers 0.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$199
Transactions
3
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Alkermes, INC. 1 $125.17
Teva Pharmaceuticals USA, INC. 1 $57.43
Otsuka America Pharmaceutical, INC. 1 $16.44

By nature of payment

Food and Beverage
$199

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,187
Patients
398
Total drug cost
$30,696
Drug Type Claims Patients Total cost
Clonazepam Generic 117 34 $848
Quetiapine Fumarate Generic 112 37 $1,963
Fluoxetine Hcl Generic 96 29 $896
Prazosin Hcl Generic 82 26 $2,977
Lamotrigine Generic 79 29 $608
Aripiprazole Generic 78 32 $4,109
Clozapine Generic 74 11 $10,128
Gabapentin Generic 73 28 $2,409
Mirtazapine Generic 73 30 $764
Trazodone Hcl Generic 73 30 $943

Frequently asked questions

Auto-generated from federal data
What is Dr. Weldon Mallgren's medical specialty?
Dr. Weldon Mallgren practices Psychiatry Physician in Claremore, OK.
Where does Dr. Weldon Mallgren practice?
Dr. Weldon Mallgren practices at 17599 S Highway 88, Claremore, OK 740170801. Office phone: 9183429530.
What is Dr. Weldon Mallgren's NPI?
Dr. Weldon Mallgren's National Provider Identifier (NPI) is 1841384021, issued by NPPES.
Does Dr. Weldon Mallgren accept Medicare assignment?
Yes. Dr. Weldon Mallgren accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Weldon Mallgren commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.