Lawrence Tierney, M.D.
NPI 1053440222 · Gastroenterology Physician · Saint Charles, MO
Lawrence Tierney, M.D. is a Gastroenterology Physician provider in Saint Charles, MO (NPI 1053440222).
Provider details
- NPI number
- 1053440222
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- R8J21 (MO)
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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
488 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) |
|---|---|---|
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 142 | $112 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 80 | $241 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 73 | $98 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 70 | $75 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 31 | $166 |
| Colorectal Cancer Screening; Colonoscopy on Individual at High Risk |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 244 | 233 |
| Pantoprazole Sodium | 157 | 76 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 136 | 127 |
| Sod Sulf/Pot Chloride/Mag Sulfbrand: Sutab | 62 | 58 |
| Omeprazole | 48 | 20 |
| Famotidine | 19 | — |
| Sod Picosulf/Mag Ox/Citric Ac |
Practice location
Mailing address
Additional practice locations (1)
- #6 Jungermann CircleSuite 103St. Peters, MO 63376-1618Phone: (636) 928-0022Fax: (636) 928-0023
Registry dates
- Enumerated
- 2007-03-05
- Last updated
- 2020-11-24
- Certified
- 2020-11-24
Frequently asked questions
- What is Lawrence Tierney's NPI number?
- Lawrence Tierney's National Provider Identifier (NPI) is 1053440222, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lawrence Tierney's specialty?
- Lawrence Tierney is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Lawrence Tierney located?
- Lawrence Tierney's practice location on file with NPPES is 400 1st Capitol Dr Ste 201, Saint Charles, MO 63301-2882.
- What is Lawrence Tierney's phone number?
- The practice phone number listed in the NPPES registry for Lawrence Tierney is (636) 669-2332.
- Is Lawrence Tierney's NPI active?
- Yes — Lawrence Tierney's NPI (1053440222) is active in the NPPES registry as of the last update on 2020-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.