David Firmage, DMD
Dentist · Sherman, TX
David Firmage, DMD is a dentist with a practice address in Sherman, Texas, and NPI 1508242793, issued on Aug 11, 2015. Check the license (Texas 33828, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- David Firmage
- Credential
- DMD
- Primary taxonomy
- Dentist 122300000X
- License number
- 33828 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2112 Monte Cristo Dr, Sherman, TX 75092
- Phone
- (903) 892-0593
- Enumerated
- Aug 11, 2015
- Entity
- Type 1 · individual
Also registered at 2112 Monte Cristo Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Billy Gray, DDSGeneral Practice Dentistry1346333739
Verify David Firmage in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 33828Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
16% fewer Medicare Part D claims than the average dentist in 2024
76 Medicare Part D claims for 41 beneficiaries, against an average of 90 among the 51,502 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin45 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: $59.42
3 payments, mostly food and beverage; the largest payer was Solventum Corporation. The 32,932 providers of this specialty with any payment received $579.61 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.
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Common questions
What is David Firmage, DMD's NPI number?
David Firmage, DMD's National Provider Identifier (NPI) is 1508242793, issued on Aug 11, 2015. An NPI identifies a provider in billing; it is not a license.
Where is David Firmage, DMD located?
The NPPES record lists a practice address at 2112 Monte Cristo Dr, Sherman, TX, 75092. Phone: (903) 892-0593. Providers update this record themselves, so call before visiting.
How can I verify David Firmage, DMD's license?
NPPES lists Texas license number 33828, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does David Firmage, DMD prescribe under Medicare Part D?
In 2024, David Firmage, DMD had 76 Medicare Part D claims for 41 beneficiaries; the average among dentist prescribers was 90. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.