Karen Dewar, M.D
NPI 1265629000 · Internal Medicine Physician · Sylmar, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Dewar, M.D is a Internal Medicine Physician provider in Sylmar, CA (NPI 1265629000).
Provider details
- NPI number
- 1265629000
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Female
- Sole proprietor
- Yes
- License
- A93536 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 |
|---|---|---|
| Furosemide | 98 | 37 |
| Losartan Potassium | 87 | 34 |
| Lisinopril | 65 | 23 |
| Amlodipine Besylate | 63 | 26 |
| Hydralazine Hcl | 63 | 27 |
| Sevelamer Carbonate | 54 | 23 |
| Potassium Chloride | 50 | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-09-25
- Last updated
- 2021-11-04
- Certified
- 2021-11-04
Frequently asked questions
- What is Karen Dewar's NPI number?
- Karen Dewar's National Provider Identifier (NPI) is 1265629000, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Dewar's specialty?
- Karen Dewar is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Dewar located?
- Karen Dewar's practice location on file with NPPES is 14445 Olive View Dr, Sylmar, CA 91342-1437.
- What is Karen Dewar's phone number?
- The practice phone number listed in the NPPES registry for Karen Dewar is (818) 364-3205.
- Does Karen Dewar accept Medicare?
- Karen Dewar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Dewar's NPI active?
- Yes — Karen Dewar's NPI (1265629000) is active in the NPPES registry as of the last update on 2021-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.