Caroline Lau, MD
NPI 1942663091 · Obstetrics & Gynecology Physician · Honolulu, HI
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Caroline Lau, MD is a Obstetrics & Gynecology Physician provider in Honolulu, HI (NPI 1942663091).
Provider details
- NPI number
- 1942663091
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
220 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 112 | $94 |
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 52 | $40 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 39 | $59 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 17 | $126 |
Typical Medicare-allowed amounts for these services range $40–$126 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alendronate Sodium | 85 | 27 |
| Estradiol | 73 | 24 |
| Raloxifene Hcl | 72 | 24 |
| Estrogens, Conjugatedbrand: Premarin | 35 | 11 |
| Risedronate Sodium | 28 | — |
| Estradiolbrand: Yuvafem | 25 | — |
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 21 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$215 across 10 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
- 2016-04-05
- Last updated
- 2020-08-19
- Certified
- 2020-08-19
Frequently asked questions
- What is Caroline Lau's NPI number?
- Caroline Lau's National Provider Identifier (NPI) is 1942663091, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Caroline Lau's specialty?
- Caroline Lau is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Caroline Lau located?
- Caroline Lau's practice location on file with NPPES is 1319 Punahou St, Honolulu, HI 96826-1001.
- What is Caroline Lau's phone number?
- The practice phone number listed in the NPPES registry for Caroline Lau is (808) 203-6518.
- Does Caroline Lau accept Medicare?
- Caroline Lau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Caroline Lau's NPI active?
- Yes — Caroline Lau's NPI (1942663091) is active in the NPPES registry as of the last update on 2020-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.