Lorene Siaw, MD
NPI 1417002510 · Internal Medicine Physician · Wailuku, HI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lorene Siaw, MD is a Internal Medicine Physician provider in Wailuku, HI (NPI 1417002510).
Provider details
- NPI number
- 1417002510
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD-8917 (HI)
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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
159 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) |
|---|---|---|
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 62 | $181 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 28 | $93 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 23 | $134 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 23 | $110 |
| Nursing Facility Discharge Management, More Than 30 Minutes99316 | 23 | $132 |
Typical Medicare-allowed amounts for these services range $93–$181 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 87 | 14 |
| Gabapentin | 57 | 11 |
| Amlodipine Besylate | 32 | — |
| Divalproex Sodium | 29 | — |
| Tamsulosin Hcl | 27 | — |
| Trazodone Hcl | 26 | — |
| Lactulose | 26 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-25
- Last updated
- 2008-04-07
Frequently asked questions
- What is Lorene Siaw's NPI number?
- Lorene Siaw's National Provider Identifier (NPI) is 1417002510, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lorene Siaw's specialty?
- Lorene Siaw is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lorene Siaw located?
- Lorene Siaw's practice location on file with NPPES is 2180 Main St, Wailuku, HI 96793-1666.
- What is Lorene Siaw's phone number?
- The practice phone number listed in the NPPES registry for Lorene Siaw is (808) 242-6464.
- Does Lorene Siaw accept Medicare?
- Lorene Siaw is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lorene Siaw's NPI active?
- Yes — Lorene Siaw's NPI (1417002510) is active in the NPPES registry as of the last update on 2008-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.