Dennis Weimer, MD
NPI 1255467577 · Psychiatry Physician · Fresno, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dennis Weimer, MD is a Psychiatry Physician provider in Fresno, CA (NPI 1255467577).
Provider details
- NPI number
- 1255467577
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 25488 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Paliperidone Palmitatebrand: Invega Sustenna | 137 | 22 |
| Clozapine | 132 | — |
| Benztropine Mesylate | 79 | 17 |
| Haloperidol Decanoate | 60 | 12 |
| Divalproex Sodium | 60 | — |
| Divalproex Sodiumbrand: Divalproex Sodium Er | 51 | 13 |
| Trazodone Hcl | 39 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 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
- 2007-02-23
- Last updated
- 2023-05-11
- Certified
- 2023-05-11
Frequently asked questions
- What is Dennis Weimer's NPI number?
- Dennis Weimer's National Provider Identifier (NPI) is 1255467577, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dennis Weimer's specialty?
- Dennis Weimer is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Dennis Weimer located?
- Dennis Weimer's practice location on file with NPPES is 4441 E Kings Canyon Rd, Fresno, CA 93702-3604.
- What is Dennis Weimer's phone number?
- The practice phone number listed in the NPPES registry for Dennis Weimer is (559) 600-5755.
- Does Dennis Weimer accept Medicare?
- Dennis Weimer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dennis Weimer's NPI active?
- Yes — Dennis Weimer's NPI (1255467577) is active in the NPPES registry as of the last update on 2023-05-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.