Leo Jeng, M.D.
NPI 1821275959 · Endocrinology, Diabetes & Metabolism Physician · Plano, TX
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leo Jeng, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Plano, TX (NPI 1821275959).
Provider details
- NPI number
- 1821275959
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- N8797 (TX)
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
18 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
2,290 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) |
|---|---|---|
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 435 | $3 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 417 | $171 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 286 | $33 |
| Hemoglobin A1c Level83036 | 252 | $10 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 189 | $121 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 178 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 82 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 302 | 75 |
| Pioglitazone Hcl | 221 | 66 |
| Levothyroxine Sodium | 202 | 62 |
| Metformin Hclbrand: Metformin Hcl Er | 198 | 67 |
| Metformin Hcl | 146 | 46 |
| Rosuvastatin Calcium | 145 | 52 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,812 across 41 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
- 2008-01-31
- Last updated
- 2025-12-15
- Certified
- 2025-12-15
Frequently asked questions
- What is Leo Jeng's NPI number?
- Leo Jeng's National Provider Identifier (NPI) is 1821275959, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leo Jeng's specialty?
- Leo Jeng is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Leo Jeng located?
- Leo Jeng's practice location on file with NPPES is 4100 W 15th St Ste 202, Plano, TX 75093-5801.
- What is Leo Jeng's phone number?
- The practice phone number listed in the NPPES registry for Leo Jeng is (972) 943-5914.
- Does Leo Jeng accept Medicare?
- Leo Jeng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leo Jeng's NPI active?
- Yes — Leo Jeng's NPI (1821275959) is active in the NPPES registry as of the last update on 2025-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.