Daniel James Mergen, D.D.S.
General Practice Dentistry · Spokane, WA
Daniel James Mergen, D.D.S. is a general practice dentistry with a practice address in Spokane, Washington, and NPI 1548253982, issued on Aug 30, 2005. Check the license (Washington DE00009968, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Daniel James Mergen
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- DE00009968 WA
Self-reported in NPPES; status is on the state search - Practice location
- 902 W 14TH Ave, Spokane, WA 99204
- Phone
- (509) 747-5186
- Enumerated
- Aug 30, 2005
- Record last updated
- Sep 1, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 3,196 in Washington → Look up another NPI →
Also registered at 902 W 14TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jack Ossello, DDSDentist1215038591
- Jeffrey Regelin, DMDGeneral Practice Dentistry1942305610
Verify Daniel James Mergen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license DE00009968Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average general practice dentistry in 2024
54 Medicare Part D claims for 44 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin33 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.
Daniel James Mergen among 3,196 general practice dentistry records in Washington
Daniel James Mergen, D.D.S. is one of 3,196 general practice dentistry records with a practice address in Washington. 57% 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, 95% newer
- In a Medicare fileYes · 57% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2016 · 72% 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
141 general practice dentistry records list a practice address in Spokane
They are 141 of the 14,049 NPPES records with a practice address in Spokane, and 3,196 general practice dentistry records in Washington.
All 3,196 in Washington → Every provider in Spokane → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- James Breeden, D.D.S.Spokane, WA 992041215949185
- George Gerbing, DDSSpokane, WA 992041306975222
- Creigh House, DMDSpokane, WA 992041568531143
- Janine Johnson, D.D.S.Spokane, WA 992041134261795
- Jeffrey Regelin, DMDSpokane, WA 992041942305610
- Anthony Wells, DMDSpokane, WA 992041669273801
- Andrew Biggs, DMDSpokane, WA 992051841225729
- David Clapp, D.M.D.Spokane, WA 992051568407161
Common questions
What is Daniel James Mergen, D.D.S.'s NPI number?
Daniel James Mergen, D.D.S.'s National Provider Identifier (NPI) is 1548253982, issued on Aug 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Daniel James Mergen, D.D.S. located?
The NPPES record lists a practice address at 902 W 14TH Ave, Spokane, WA, 99204. Phone: (509) 747-5186. Providers update this record themselves, so call before visiting.
How can I verify Daniel James Mergen, D.D.S.'s license?
NPPES lists Washington license number DE00009968, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Daniel James Mergen, D.D.S. prescribe under Medicare Part D?
In 2024, Daniel James Mergen, D.D.S. had 54 Medicare Part D claims for 44 beneficiaries; the average among general practice dentistry prescribers was 83. 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.