Sam Truong, M.D.
NPI 1841516689 · Dermatology Physician · Lake Forest, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sam Truong, M.D. is a Dermatology Physician provider in Lake Forest, CA (NPI 1841516689).
Provider details
- NPI number
- 1841516689
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A113368 (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 tenure33% of score
16 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluorouracil | 169 | 151 |
| Clobetasol Propionate | 159 | 67 |
| Triamcinolone Acetonide | 100 | 78 |
| Hydrocortisone | 87 | 48 |
| Betamethasone/Propylene Glycbrand: Betamethasone Diprop Augmented | 85 | 52 |
| Ketoconazole | 85 | 42 |
| Tacrolimus | 78 | 48 |
| Fluocinonide | 78 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 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
Registry dates
- Enumerated
- 2010-04-19
- Last updated
- 2023-09-26
- Certified
- 2020-09-08
Frequently asked questions
- What is Sam Truong's NPI number?
- Sam Truong's National Provider Identifier (NPI) is 1841516689, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sam Truong's specialty?
- Sam Truong is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Sam Truong located?
- Sam Truong's practice location on file with NPPES is 23832 Rockfield Blvd Ste 220, Lake Forest, CA 92630-2876.
- What is Sam Truong's phone number?
- The practice phone number listed in the NPPES registry for Sam Truong is (949) 770-8115.
- Does Sam Truong accept Medicare?
- Sam Truong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sam Truong's NPI active?
- Yes — Sam Truong's NPI (1841516689) is active in the NPPES registry as of the last update on 2023-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.