Weldon Mallgren, D.O.
NPI 1841384021 · Psychiatry Physician · Claremore, OK
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Weldon Mallgren, D.O. is a Psychiatry Physician provider in Claremore, OK (NPI 1841384021).
Provider details
- NPI number
- 1841384021
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 2466 (OK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 115 | 37 |
| Quetiapine Fumarate | 76 | 28 |
| Lamotrigine | 75 | 21 |
| Fluoxetine Hcl | 74 | 21 |
| Aripiprazole | 73 | 25 |
| Methylphenidate Hcl | 69 | 17 |
| Lorazepam | 64 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$199 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-03
- Last updated
- 2011-03-01
Frequently asked questions
- What is Weldon Mallgren's NPI number?
- Weldon Mallgren's National Provider Identifier (NPI) is 1841384021, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Weldon Mallgren's specialty?
- Weldon Mallgren is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Weldon Mallgren located?
- Weldon Mallgren's practice location on file with NPPES is 17599 S Highway 88, Claremore, OK 74017-0801.
- What is Weldon Mallgren's phone number?
- The practice phone number listed in the NPPES registry for Weldon Mallgren is (918) 342-9530.
- Does Weldon Mallgren accept Medicare?
- Weldon Mallgren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Weldon Mallgren's NPI active?
- Yes — Weldon Mallgren's NPI (1841384021) is active in the NPPES registry as of the last update on 2011-03-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.