Lilian Tran, MD
NPI 1134190234 · Internal Medicine Physician · Rancho Santa Margarita, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lilian Tran, MD is a Internal Medicine Physician provider in Rancho Santa Margarita, CA (NPI 1134190234).
Provider details
- NPI number
- 1134190234
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A69137 (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 tenure28% of score
20 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
444 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 135 | $6 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 125 | $96 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 88 | $17 |
| Advance Care Planning, First 30 Minutes99497 | 33 | $25 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 26 | $98 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 251 | 72 |
| Metformin Hcl | 115 | 34 |
| Levothyroxine Sodium | 107 | 32 |
| Amlodipine Besylate | 104 | 33 |
| Lisinopril | 94 | 30 |
| Simvastatin | 93 | 29 |
| Montelukast Sodium | 92 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-28
- Last updated
- 2019-01-22
Frequently asked questions
- What is Lilian Tran's NPI number?
- Lilian Tran's National Provider Identifier (NPI) is 1134190234, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lilian Tran's specialty?
- Lilian Tran is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lilian Tran located?
- Lilian Tran's practice location on file with NPPES is 29472 Avenida De Las Bandera, Rancho Santa Margarita, CA 92688-2651.
- What is Lilian Tran's phone number?
- The practice phone number listed in the NPPES registry for Lilian Tran is (949) 459-9968.
- Does Lilian Tran accept Medicare?
- Lilian Tran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lilian Tran's NPI active?
- Yes — Lilian Tran's NPI (1134190234) is active in the NPPES registry as of the last update on 2019-01-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.