Chang Lai, MD
NPI 1437234598 · Internal Medicine Physician · Honolulu, HI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chang Lai, MD is a Internal Medicine Physician provider in Honolulu, HI (NPI 1437234598).
Provider details
- NPI number
- 1437234598
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD6970 (HI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,466 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 699 | $134 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 243 | $95 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 227 | $52 |
| Advance Care Planning, First 30 Minutes99497 | 205 | $84 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 192 | $136 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 218 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,943 | 525 |
| Losartan Potassium | 1,872 | 470 |
| Amlodipine Besylate | 1,595 | 395 |
| Rosuvastatin Calcium | 743 | 221 |
| Tamsulosin Hcl | 703 | 184 |
| Metformin Hclbrand: Metformin Hcl Er | 644 | 179 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$5,330 across 155 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
- 2006-10-26
- Last updated
- 2007-11-09
Frequently asked questions
- What is Chang Lai's NPI number?
- Chang Lai's National Provider Identifier (NPI) is 1437234598, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chang Lai's specialty?
- Chang Lai is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Chang Lai located?
- Chang Lai's practice location on file with NPPES is 1380 Lusitana St, Honolulu, HI 96813-2461.
- What is Chang Lai's phone number?
- The practice phone number listed in the NPPES registry for Chang Lai is (808) 537-6761.
- Does Chang Lai accept Medicare?
- Chang Lai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chang Lai's NPI active?
- Yes — Chang Lai's NPI (1437234598) is active in the NPPES registry as of the last update on 2007-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.