Leo Tynan, MD
NPI 1811937303 · Internal Medicine Physician · Fredericksburg, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leo Tynan, MD is a Internal Medicine Physician provider in Fredericksburg, TX (NPI 1811937303).
Provider details
- NPI number
- 1811937303
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- H0895 (TX)
Specialties & taxonomies
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
3,048 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 456 | $122 |
| 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 | 421 | $16 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 395 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 365 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 254 | $8 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 96 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 211 | 44 |
| Atorvastatin Calcium | 161 | 39 |
| Amlodipine Besylate | 159 | 42 |
| Pantoprazole Sodium | 142 | 41 |
| Rosuvastatin Calcium | 142 | 42 |
| Alprazolam | 137 | 23 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-07
- Last updated
- 2011-04-04
Frequently asked questions
- What is Leo Tynan's NPI number?
- Leo Tynan's National Provider Identifier (NPI) is 1811937303, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leo Tynan's specialty?
- Leo Tynan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leo Tynan located?
- Leo Tynan's practice location on file with NPPES is 1308 South Highway 16, Fredericksburg, TX 78624-5058.
- What is Leo Tynan's phone number?
- The practice phone number listed in the NPPES registry for Leo Tynan is (830) 997-2181.
- Does Leo Tynan accept Medicare?
- Leo Tynan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leo Tynan's NPI active?
- Yes — Leo Tynan's NPI (1811937303) is active in the NPPES registry as of the last update on 2011-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.