Thomas Mastri, M.D.
NPI 1073566642 · Gastroenterology Physician · Fredericksburg, VA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Mastri, M.D. is a Gastroenterology Physician provider in Fredericksburg, VA (NPI 1073566642).
Provider details
- NPI number
- 1073566642
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0101228933 (VA)
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
20 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
1,388 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 | 299 | $123 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 200 | $77 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 184 | $236 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 153 | $99 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 74 | $166 |
| Measurement of Liver Stiffness |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 349 | 114 |
| Omeprazole | 274 | 79 |
| Famotidine | 258 | 87 |
| Esomeprazole Magnesium | 54 | 20 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 46 | 45 |
| Linaclotidebrand: Linzess | 45 | 19 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$568 across 28 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
- 2006-05-17
- Last updated
- 2014-01-31
Frequently asked questions
- What is Thomas Mastri's NPI number?
- Thomas Mastri's National Provider Identifier (NPI) is 1073566642, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Mastri's specialty?
- Thomas Mastri is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Mastri located?
- Thomas Mastri's practice location on file with NPPES is 2601 Fall Hill Ave, Fredericksburg, VA 22401-3323.
- What is Thomas Mastri's phone number?
- The practice phone number listed in the NPPES registry for Thomas Mastri is (504) 371-9696.
- Does Thomas Mastri accept Medicare?
- Thomas Mastri is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Mastri's NPI active?
- Yes — Thomas Mastri's NPI (1073566642) is active in the NPPES registry as of the last update on 2014-01-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.