Mark Tranby, DMD
Dentist · Springfield, OR
Mark Tranby, DMD is a dentist with a practice address in Springfield, Oregon, and NPI 1346490331, issued on Sep 25, 2008. Check the license (Oregon D9188, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Tranby
- Credential
- DMD
- Primary taxonomy
- Dentist 122300000X
- License number
- D9188 OR
Self-reported in NPPES; status is on the state search - Practice location
- 227 Q St, Springfield, OR 97477
- Phone
- (541) 726-9300
- Enumerated
- Sep 25, 2008
- Record last updated
- Sep 25, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (541) 726-9449
- Entity
- Type 1 · individual
8 nearest dentist records → All 1,246 in Oregon → Look up another NPI →
Also registered at 227 Q St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christian Hanson, DMDGeneral Practice Dentistry1417260381
- Dan Mullins, D.D.S.General Practice Dentistry1629296256
- Benjamin Saikin, D.M.D.General Practice Dentistry1548679327
- Rebecca Tansey, D.M.D.Dentist1750763694
Verify Mark Tranby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license D9188Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average dentist in 2024
44 Medicare Part D claims for 27 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 13 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen12 claims
- Ibuprofen12 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.
Mark Tranby among 1,246 dentist records in Oregon
Mark Tranby, DMD is one of 1,246 dentist records with a practice address in Oregon. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 39% of them.
- NPI issued2008 · 39% of these records are older, 55% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2008 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dentist providers in Oregon
There are 1,246 dentist records in Oregon.
All 1,246 in Oregon → Every provider in Springfield → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Lavanya Bikki, D.D.S.Springfield, OR 974771205184496
- Alison Cadaret, D.D.S., PCSpringfield, OR 974771275514267
- Coleman Dow, DMDSpringfield, OR 974771063792422
- Ronald Ewert, DDSSpringfield, OR 974771568689990
- Caleb Hareb, DDSSpringfield, OR 974771740115070
- Madeleine Hoskins, DDSSpringfield, OR 974771871221986
- Elizabeth Sasse, DDSSpringfield, OR 974771205181146
- Whitney Smith, DDSSpringfield, OR 974771396150710
Common questions
What is Mark Tranby, DMD's NPI number?
Mark Tranby, DMD's National Provider Identifier (NPI) is 1346490331, issued on Sep 25, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Mark Tranby, DMD located?
The NPPES record lists a practice address at 227 Q St, Springfield, OR, 97477. Phone: (541) 726-9300. Providers update this record themselves, so call before visiting.
How can I verify Mark Tranby, DMD's license?
NPPES lists Oregon license number D9188, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Tranby, DMD prescribe under Medicare Part D?
In 2024, Mark Tranby, DMD had 44 Medicare Part D claims for 27 beneficiaries; the average among dentist prescribers was 86. 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.