Gregory Scott Marshall, D.D.S.
General Practice Dentistry · Gun Barrel City, TX
Gregory Scott Marshall, D.D.S. is a general practice dentistry with a practice address in Gun Barrel City, Texas, and NPI 1497976690, issued on May 2, 2007. Check the license (Texas 22175, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Scott Marshall
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 22175 TX
Self-reported in NPPES; status is on the state search - Practice location
- 435 Legendary LN, Gun Barrel City, TX 75156
- Phone
- (903) 887-1916
- Enumerated
- May 2, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 10,056 in Texas → Look up another NPI →
Verify Gregory Scott Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 22175Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average general practice dentistry in 2024
245 Medicare Part D claims for 141 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 29 claims were for opioids.
Most prescribed
- Amoxicillin107 claims
- Amoxicillin-Clavulanate Potass32 claims
- Chlorhexidine Gluconate30 claims
- Acetaminophen-Codeine23 claims
- Clindamycin Hcl15 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.
Gregory Scott Marshall among 10,056 general practice dentistry records in Texas
Gregory Scott Marshall, D.D.S. is one of 10,056 general practice dentistry records with a practice address in Texas. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 27% of them.
- NPI issued2007 · 27% of these records are older, 52% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 general practice dentistry records list a practice address in Gun Barrel City
They are 6 of the 85 NPPES records with a practice address in Gun Barrel City, and 10,056 general practice dentistry records in Texas.
All 10,056 in Texas → Every provider in Gun Barrel City → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Anshu Bansal, DDSGun Barrel City, TX 751561871983312
- Wandy Connolly, DMDGun Barrel City, TX 751561487468393
- Veronique Matthews, DMDGun Barrel City, TX 751561205536521
- Miguel Padilla, DMDGun Barrel City, TX 751561285319418
- Bruce Thurston, D.D.S.Gun Barrel, TX 751561548412943
- Kenneth Underriner, D.D.S.Gun Barrel City, TX 751561366562878
- Alan Martin, DDSRed Oak, TX 751541518076215
- Corinne Pearson, DENTISTRed Oak, TX 751541588652382
Common questions
What is Gregory Scott Marshall, D.D.S.'s NPI number?
Gregory Scott Marshall, D.D.S.'s National Provider Identifier (NPI) is 1497976690, issued on May 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Scott Marshall, D.D.S. located?
The NPPES record lists a practice address at 435 Legendary LN, Gun Barrel City, TX, 75156. Phone: (903) 887-1916. Providers update this record themselves, so call before visiting.
How can I verify Gregory Scott Marshall, D.D.S.'s license?
NPPES lists Texas license number 22175, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory Scott Marshall, D.D.S. prescribe under Medicare Part D?
In 2024, Gregory Scott Marshall, D.D.S. had 245 Medicare Part D claims for 141 beneficiaries; the average among general practice dentistry prescribers was 83. 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.