Lan Nguyen, MD
NPI 1265753040 · Internal Medicine Physician · Honolulu, HI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lan Nguyen, MD is a Internal Medicine Physician provider in Honolulu, HI (NPI 1265753040).
Provider details
- NPI number
- 1265753040
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A118694 (CA)
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 tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
674 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 543 | $113 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 74 | $108 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 57 | $160 |
Typical Medicare-allowed amounts for these services range $108–$160 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 26 | 26 |
| Atorvastatin Calcium | 18 | 18 |
| Oxycodone Hcl | 18 | 18 |
| Gabapentin | 15 | 15 |
| Metoprolol Succinate | 15 | 13 |
| Ciprofloxacin Hcl | 13 | 13 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$142 across 1 record (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
Additional practice locations (2)
- 91-2141 Fort Weaver RdEwa Beach, HI 96706-1993Phone: (808) 366-8167Fax: (855) 437-1594
- 46-006 Nana PlKaneohe, HI 96744-3644Phone: (619) 957-4907
Registry dates
- Enumerated
- 2010-06-16
- Last updated
- 2021-07-23
- Certified
- 2021-06-27
Frequently asked questions
- What is Lan Nguyen's NPI number?
- Lan Nguyen's National Provider Identifier (NPI) is 1265753040, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lan Nguyen's specialty?
- Lan Nguyen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lan Nguyen located?
- Lan Nguyen's practice location on file with NPPES is 1301 Punchbowl St, Honolulu, HI 96813-2402.
- What is Lan Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Lan Nguyen is (808) 366-8167.
- Does Lan Nguyen accept Medicare?
- Lan Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lan Nguyen's NPI active?
- Yes — Lan Nguyen's NPI (1265753040) is active in the NPPES registry as of the last update on 2021-07-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.