Karen Weisman, MD
NPI 1134100944 · Internal Medicine Physician · Corvallis, OR
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Weisman, MD is a Internal Medicine Physician provider in Corvallis, OR (NPI 1134100944).
Provider details
- NPI number
- 1134100944
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD 19502 (OR)
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
20 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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 126 | 12 |
| Buprenorphine Hcl | 58 | — |
| Alprazolam | 38 | — |
| Lorazepam | 26 | — |
| Prazosin Hcl | 26 | — |
| Buprenorphine Hcl/Naloxone Hclbrand: Suboxone | 24 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$54 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
- 2005-11-09
- Last updated
- 2011-05-05
Frequently asked questions
- What is Karen Weisman's NPI number?
- Karen Weisman's National Provider Identifier (NPI) is 1134100944, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Weisman's specialty?
- Karen Weisman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Weisman located?
- Karen Weisman's practice location on file with NPPES is 2310 Nw Kings Blvd, Corvallis, OR 97330-3925.
- What is Karen Weisman's phone number?
- The practice phone number listed in the NPPES registry for Karen Weisman is (541) 754-1530.
- Does Karen Weisman accept Medicare?
- Karen Weisman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Weisman's NPI active?
- Yes — Karen Weisman's NPI (1134100944) is active in the NPPES registry as of the last update on 2011-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.