Thanavut Jiansakul, M.D.
NPI 1558507665 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thanavut Jiansakul, M.D. is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1558507665).
Provider details
- NPI number
- 1558507665
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- EL141036 (ME)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 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 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 56 | 22 |
| Lisinopril | 39 | 14 |
| Amlodipine Besylate | 36 | 14 |
| Ibuprofen | 30 | 13 |
| Gabapentin | 29 | 14 |
| Omeprazole | 26 | 15 |
| Metformin Hcl | 25 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$131 across 5 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
- 2008-12-18
- Last updated
- 2023-01-05
- Certified
- 2023-01-05
Frequently asked questions
- What is Thanavut Jiansakul's NPI number?
- Thanavut Jiansakul's National Provider Identifier (NPI) is 1558507665, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thanavut Jiansakul's specialty?
- Thanavut Jiansakul is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thanavut Jiansakul located?
- Thanavut Jiansakul's practice location on file with NPPES is 954 N Vermont Ave, Los Angeles, CA 90029-3529.
- What is Thanavut Jiansakul's phone number?
- The practice phone number listed in the NPPES registry for Thanavut Jiansakul is (562) 867-7999.
- Does Thanavut Jiansakul accept Medicare?
- Thanavut Jiansakul is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thanavut Jiansakul's NPI active?
- Yes — Thanavut Jiansakul's NPI (1558507665) is active in the NPPES registry as of the last update on 2023-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.