Thomas G. Preston, M.D.
Internal Medicine Physician · Birmingham, AL
Thomas G. Preston, M.D. is an internal medicine physician with a practice address in Birmingham, Alabama, and NPI 1942203369, issued on May 31, 2005. Check the license (Alabama 8818, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Thomas G. Preston
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 8818 AL
Self-reported in NPPES; status is on the state search - Practice location
- 3508 Bermuda Dr, Birmingham, AL 35210
- Phone
- (205) 951-8222
- Enumerated
- May 31, 2005
- Record last updated
- Jan 30, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,705 in Alabama → Look up another NPI →
Verify Thomas G. Preston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlabama Board of Medical Examiners
Search for license 8818Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
13 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Thomas G. Preston among 1,705 internal medicine physician records in Alabama
Thomas G. Preston, M.D. is one of 1,705 internal medicine physician records with a practice address in Alabama. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2009 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
487 internal medicine physician records list a practice address in Birmingham
They are 487 of the 15,795 NPPES records with a practice address in Birmingham, and 1,705 internal medicine physician records in Alabama.
All 1,705 in Alabama → Every provider in Birmingham → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- James Pirkle, M.D.Birmingham, AL 352101861664054
- John Watkins, MDIrondale, AL 352101528081353
- Daniel Williams, MDBirmingham, AL 352101922055284
- Grayce Arnold, D.O.Birmingham, AL 352091992936876
- Sarah Bagwell, MDHomewood, AL 352091629488101
- Emily Baillio, M.D.Birmingham, AL 352111245207877
- Marcus Bell, M.D.Birmingham, AL 352091083934095
- Steve Boger, M.D.Birmingham, AL 352111740209048
Common questions
What is Thomas G. Preston, M.D.'s NPI number?
Thomas G. Preston, M.D.'s National Provider Identifier (NPI) is 1942203369, issued on May 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Thomas G. Preston, M.D. located?
The NPPES record lists a practice address at 3508 Bermuda Dr, Birmingham, AL, 35210. Phone: (205) 951-8222. Providers update this record themselves, so call before visiting.
How can I verify Thomas G. Preston, M.D.'s license?
NPPES lists Alabama license number 8818, as entered by the provider. Search the Alabama Board of Medical Examiners at https://www.albme.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas G. Preston, M.D. prescribe under Medicare Part D?
In 2024, Thomas G. Preston, M.D. had 13 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.