Francis Lansang, M.D.
NPI 1346391927 · Family Medicine Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Francis Lansang, M.D. is a Family Medicine Physician provider in Knoxville, TN (NPI 1346391927).
Provider details
- NPI number
- 1346391927
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 69149 (TN)
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
19 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
584 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 177 | $112 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 103 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 88 | $80 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 55 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 52 | $8 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 28 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 142 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 317 | 136 |
| Gabapentin | 282 | 77 |
| Amlodipine Besylate | 246 | 105 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 244 | 62 |
| Levothyroxine Sodium | 205 | 82 |
| Alprazolam | 160 | 41 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,206 across 74 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
- 2007-01-12
- Last updated
- 2023-11-02
- Certified
- 2023-11-02
Frequently asked questions
- What is Francis Lansang's NPI number?
- Francis Lansang's National Provider Identifier (NPI) is 1346391927, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Francis Lansang's specialty?
- Francis Lansang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Francis Lansang located?
- Francis Lansang's practice location on file with NPPES is 2001 Laurel Ave Ste 101, Knoxville, TN 37916-1866.
- What is Francis Lansang's phone number?
- The practice phone number listed in the NPPES registry for Francis Lansang is (865) 549-4444.
- Does Francis Lansang accept Medicare?
- Francis Lansang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Francis Lansang's NPI active?
- Yes — Francis Lansang's NPI (1346391927) is active in the NPPES registry as of the last update on 2023-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.