Ruth Mize Thomson, DO
Internal Medicine Physician · Flat Rock, NC
Ruth Mize Thomson, DO is an internal medicine physician with a practice address in Flat Rock, North Carolina, and NPI 1144337965, issued on Aug 25, 2006. Check the license (North Carolina 2021-03352, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ruth Mize Thomson
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 2021-03352 NC
18374 NH
34-006681 OH
Self-reported in NPPES; status is on the state search - Practice location
- 571 S Allen RD, Flat Rock, NC 28731
- Phone
- (828) 692-6178
- Enumerated
- Aug 25, 2006
- Record last updated
- Aug 18, 2022
- Fax
- (828) 692-2365
- Medicaid ID
- 2247036 OH
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,056 in North Carolina → Look up another NPI →
Also registered at 571 S Allen RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Denise Airey, FNP-CNurse Practitioner1336387596
- Ashley Albers, DOHospice and Palliative Medicine (Internal Medicine) Physician1881825446
- Brittany Alexander, FNPNurse Practitioner1750152005
- Bonnie Baker, MDInternal Medicine Physician1245341106
- Emily Baldwin, AGNPGerontology Nurse Practitioner1912567579
- Michael Barnett, MDInternal Medicine Physician1326254053
Verify Ruth Mize Thomson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 2021-03352Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
152 Medicare Part D claims for 78 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Levothyroxine Sodium15 claims
- Lorazepam11 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.
Ruth Mize Thomson among 4,056 internal medicine physician records in North Carolina
Ruth Mize Thomson, DO is one of 4,056 internal medicine physician records with a practice address in North Carolina. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 52% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2022 · 48% 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 North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 internal medicine physician records list a practice address in Flat Rock
They are 8 of the 148 NPPES records with a practice address in Flat Rock, and 4,056 internal medicine physician records in North Carolina.
All 4,056 in North Carolina → Every provider in Flat Rock → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bonnie Baker, MDFlat Rock, NC 287311245341106
- Michael Barnett, MDFlat Rock, NC 287311326254053
- Stephen Brown, MDFlat Rock, NC 287311225011901
- Dennis Kabasan, MDFlat Rock, NC 287311043279516
- Michael Marschke, M.D.Flat Rock, NC 287311285734665
- Caitlin Siropaides, D.O.Flat Rock, NC 287311912263724
- Andrew Westbrook, M.D.Flat Rock, NC 287311841391208
- Matthew Moye, D.O.Fairview, NC 287301942508866
Common questions
What is Ruth Mize Thomson, DO's NPI number?
Ruth Mize Thomson, DO's National Provider Identifier (NPI) is 1144337965, issued on Aug 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ruth Mize Thomson, DO located?
The NPPES record lists a practice address at 571 S Allen RD, Flat Rock, NC, 28731. Phone: (828) 692-6178. Providers update this record themselves, so call before visiting.
How can I verify Ruth Mize Thomson, DO's license?
NPPES lists North Carolina license number 2021-03352, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ruth Mize Thomson, DO prescribe under Medicare Part D?
In 2024, Ruth Mize Thomson, DO had 152 Medicare Part D claims for 78 beneficiaries; 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.