Margaret Hu, MD
NPI 1619046844 · Internal Medicine Physician · Kailua, HI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Hu, MD is a Internal Medicine Physician provider in Kailua, HI (NPI 1619046844).
Provider details
- NPI number
- 1619046844
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD-12161 (HI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
24 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 24 | $82 |
Typical Medicare-allowed amounts for these services range $82–$82 (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 · 88 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 754 | 276 |
| Amlodipine Besylate | 280 | 98 |
| Losartan Potassium | 280 | 107 |
| Lisinopril | 213 | 77 |
| Levothyroxine Sodium | 150 | 53 |
| Metformin Hclbrand: Metformin Hcl Er | 110 | 35 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-06
- Last updated
- 2021-06-03
- Certified
- 2021-06-03
Frequently asked questions
- What is Margaret Hu's NPI number?
- Margaret Hu's National Provider Identifier (NPI) is 1619046844, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Hu's specialty?
- Margaret Hu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Hu located?
- Margaret Hu's practice location on file with NPPES is 201 Hamakua Dr, Kailua, HI 96734-3984.
- What is Margaret Hu's phone number?
- The practice phone number listed in the NPPES registry for Margaret Hu is (808) 432-3400.
- Does Margaret Hu accept Medicare?
- Margaret Hu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Hu's NPI active?
- Yes — Margaret Hu's NPI (1619046844) is active in the NPPES registry as of the last update on 2021-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.