Samantha Louise Zarro, MD
Gastroenterology Physician · Dallas, TX
Samantha Louise Zarro, MD is a gastroenterology physician with a practice address in Dallas, Texas, and NPI 1477179984, issued on Jun 20, 2020. Check the license (Texas U4055, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Samantha Louise Zarro
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- U4055 TX
2020017122 MO
2021041272 MO
Self-reported in NPPES; status is on the state search - Practice location
- 3500 Gaston Ave, Dallas, TX 75246
- Phone
- (496) 515-8057
- Enumerated
- Jun 20, 2020
- Record last updated
- Jun 12, 2023
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,478 in Texas → Look up another NPI →
Also registered at 3500 Gaston Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Samantha Louise Zarro in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license U4055Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average gastroenterology physician in 2024
87 Medicare Part D claims for 20 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Atorvastatin Calcium11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $2,233.50
56 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Samantha Louise Zarro among 1,478 gastroenterology physician records in Texas
Samantha Louise Zarro, MD is one of 1,478 gastroenterology physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 97% of them.
- NPI issued2020 · 97% of these records are older, 1% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileNo · 79% of these records are
- Record last updated2023 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Texas
There are 1,478 gastroenterology physician records in Texas.
All 1,478 in Texas → Every provider in Dallas → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Michael Allen, MDDallas, TX 752461043265796
- Clement Boland, MDDallas, TX 752461619921038
- Angela Carollo, M.D.Dallas, TX 752461306805585
- Blair Conner, M.D.Dallas, TX 752461992764922
- Themistocles Dassopoulos, MDDallas, TX 752461326083148
- Daniel Demarco, M.D.Dallas, TX 752461558320903
- Esmail Elwazir, M.D.Dallas, TX 752461598741944
- John Hamilton, M.D.Dallas, TX 752461033179213
Common questions
What is Samantha Louise Zarro, MD's NPI number?
Samantha Louise Zarro, MD's National Provider Identifier (NPI) is 1477179984, issued on Jun 20, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Samantha Louise Zarro, MD located?
The NPPES record lists a practice address at 3500 Gaston Ave, Dallas, TX, 75246. Phone: (496) 515-8057. Providers update this record themselves, so call before visiting.
How can I verify Samantha Louise Zarro, MD's license?
NPPES lists Texas license number U4055, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Samantha Louise Zarro, MD prescribe under Medicare Part D?
In 2024, Samantha Louise Zarro, MD had 87 Medicare Part D claims for 20 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.