Mark W. Hamm, DMD
General Practice Dentistry · Roseburg, OR
Mark W. Hamm, DMD is a general practice dentistry with a practice address in Roseburg, Oregon, and NPI 1225035207, issued on Jul 5, 2005. Check the license (Oregon 5836, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark W. Hamm
- Credential
- DMD
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 5836 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1313 W Harvard Ave, Roseburg, OR 97470
- Phone
- (541) 673-3355
- Enumerated
- Jul 5, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (541) 673-1533
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 1,888 in Oregon → Look up another NPI →
Verify Mark W. Hamm in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 5836Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $183.49
1 payment: gift; the largest payer was Ultradent Products Inc. The 41,669 providers of this specialty with any payment received $597.01 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.
Mark W. Hamm among 1,888 general practice dentistry records in Oregon
Mark W. Hamm, DMD is one of 1,888 general practice dentistry records with a practice address in Oregon. 60% 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, 85% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2026 · 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 1223G0001X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
37 general practice dentistry records list a practice address in Roseburg
They are 37 of the 1,928 NPPES records with a practice address in Roseburg, and 1,888 general practice dentistry records in Oregon.
All 1,888 in Oregon → Every provider in Roseburg → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Brannick Adams, D.D.S.Roseburg, OR 974701376577700
- Michael Bratland, DMDRoseburg, OR 974701235128745
- David Eichman, DDSRoseburg, OR 974701295746410
- David Finlay, DMDRoseburg, OR 974701851459168
- James Lee, DDSRoseburg, OR 974701861437873
- Mike Lee, DDSRoseburg, OR 974701962572859
- Scott McAdoo, DDSRoseburg, OR 974701376536979
- Bruce Parker, DDSRoseburg, OR 974701750492054
Common questions
What is Mark W. Hamm, DMD's NPI number?
Mark W. Hamm, DMD's National Provider Identifier (NPI) is 1225035207, issued on Jul 5, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark W. Hamm, DMD located?
The NPPES record lists a practice address at 1313 W Harvard Ave, Roseburg, OR, 97470. Phone: (541) 673-3355. Providers update this record themselves, so call before visiting.
How can I verify Mark W. Hamm, DMD's license?
NPPES lists Oregon license number 5836, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity 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.