William Clendenin, MD
NPI 1083791875 · Psychiatry Physician · Saint Louis, MO
William Clendenin, MD is a Psychiatry Physician provider in Saint Louis, MO (NPI 1083791875).
Provider details
- NPI number
- 1083791875
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- R3819 (MO)
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 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lorazepam | 107 | 18 |
| Trazodone Hcl | 88 | 17 |
| Risperidone | 75 | 11 |
| Benztropine Mesylate | 56 | — |
| Clozapine | 55 | — |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 48 | 11 |
| Haloperidol | 44 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$121 across 1 record (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
- 2006-11-01
- Last updated
- 2008-02-08
Frequently asked questions
- What is William Clendenin's NPI number?
- William Clendenin's National Provider Identifier (NPI) is 1083791875, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Clendenin's specialty?
- William Clendenin is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is William Clendenin located?
- William Clendenin's practice location on file with NPPES is 7428 Ethel Ave, Saint Louis, MO 63117-1608.
- What is William Clendenin's phone number?
- The practice phone number listed in the NPPES registry for William Clendenin is (314) 567-0560.
- Is William Clendenin's NPI active?
- Yes — William Clendenin's NPI (1083791875) is active in the NPPES registry as of the last update on 2008-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.