Karen Lau, M.D.
NPI 1548595580 · Family Medicine Physician · Anaheim, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Lau, M.D. is a Family Medicine Physician provider in Anaheim, CA (NPI 1548595580).
Provider details
- NPI number
- 1548595580
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A109171 (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
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
619 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 324 | $138 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 90 | $21 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 86 | $140 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 51 | $98 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 34 | $194 |
| Administration of Influenza Virus VaccineG0008 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 110 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 418 | 127 |
| Rosuvastatin Calcium | 367 | 114 |
| Levothyroxine Sodium | 337 | 102 |
| Losartan Potassium | 271 | 78 |
| Amlodipine Besylate | 226 | 72 |
| Escitalopram Oxalate | 123 | 37 |
Practice location
Mailing address
Additional practice locations (2)
- 2540 N Santiago BlvdOrange, CA 92867-1862Phone: (714) 921-1030Fax: (714) 921-1032
- 1010 W La Veta Ave Ste 750Orange, CA 92868-4312Phone: (714) 639-9401Fax: (714) 919-8804
Registry dates
- Enumerated
- 2009-10-08
- Last updated
- 2025-11-22
- Certified
- 2025-11-22
Frequently asked questions
- What is Karen Lau's NPI number?
- Karen Lau's National Provider Identifier (NPI) is 1548595580, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Lau's specialty?
- Karen Lau is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Lau located?
- Karen Lau's practice location on file with NPPES is 761 S Weir Canyon Rd Ste 185, Anaheim, CA 92808-1947.
- What is Karen Lau's phone number?
- The practice phone number listed in the NPPES registry for Karen Lau is (714) 282-6934.
- Does Karen Lau accept Medicare?
- Karen Lau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Lau's NPI active?
- Yes — Karen Lau's NPI (1548595580) is active in the NPPES registry as of the last update on 2025-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.