Karen Kwan, M.D.
NPI 1316042542 · General Practice Physician · Torrance, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Kwan, M.D. is a General Practice Physician provider in Torrance, CA (NPI 1316042542).
Provider details
- NPI number
- 1316042542
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A88896 (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
19 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 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 235 | 70 |
| Dexamethasone | 50 | 19 |
| Tamoxifen Citrate | 43 | 15 |
| Ondansetron Hcl | 41 | 20 |
| Exemestane | 34 | 12 |
| Ribociclib Succinatebrand: Kisqali | 27 | — |
| Lenalidomide | 27 | — |
| Imatinib Mesylate | 26 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-13
- Last updated
- 2021-11-30
Frequently asked questions
- What is Karen Kwan's NPI number?
- Karen Kwan's National Provider Identifier (NPI) is 1316042542, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Kwan's specialty?
- Karen Kwan is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Kwan located?
- Karen Kwan's practice location on file with NPPES is 1000 W Carson St, Torrance, CA 90502-2004.
- What is Karen Kwan's phone number?
- The practice phone number listed in the NPPES registry for Karen Kwan is (310) 222-2465.
- Does Karen Kwan accept Medicare?
- Karen Kwan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Kwan's NPI active?
- Yes — Karen Kwan's NPI (1316042542) is active in the NPPES registry as of the last update on 2021-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.