Karen Law, MD
NPI 1205253150 · Family Medicine Physician · Chula Vista, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Law, MD is a Family Medicine Physician provider in Chula Vista, CA (NPI 1205253150).
Provider details
- NPI number
- 1205253150
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A138534 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
85 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 85 | $9 |
Typical Medicare-allowed amounts for these services range $9–$9 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 139 | 48 |
| Amlodipine Besylate | 88 | 28 |
| Metformin Hcl | 76 | 23 |
| Losartan Potassium | 74 | 23 |
| Lisinopril | 56 | 17 |
| Diclofenac Sodium | 34 | 18 |
| Fluticasone Propionate | 34 |
Practice location
Mailing address
Additional practice locations (1)
- 2400 E 8th StNational City, CA 91950-2956Phone: (619) 662-4100
Registry dates
- Enumerated
- 2014-03-27
- Last updated
- 2022-07-21
- Certified
- 2022-03-01
Frequently asked questions
- What is Karen Law's NPI number?
- Karen Law's National Provider Identifier (NPI) is 1205253150, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Law's specialty?
- Karen Law is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Law located?
- Karen Law's practice location on file with NPPES is 678 3rd Ave, Chula Vista, CA 91910-5736.
- What is Karen Law's phone number?
- The practice phone number listed in the NPPES registry for Karen Law is (619) 662-4100.
- Does Karen Law accept Medicare?
- Karen Law is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Law's NPI active?
- Yes — Karen Law's NPI (1205253150) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.