Mark A. Ellis, DDS
Dentist · Cass Lake, MN
Mark A. Ellis, DDS is a dentist with a practice address in Cass Lake, Minnesota, and NPI 1154655082, issued on Sep 24, 2009. Check the license with the Minnesota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark A. Ellis
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 0025030 TX
Self-reported in NPPES; status is on the state search - Practice location
- 425 7TH St NW, Cass Lake, MN 56633
- Phone
- (218) 335-3230
- Enumerated
- Sep 24, 2009
- Record last updated
- Oct 26, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 1,794 in Minnesota → Look up another NPI →
Also registered at 425 7TH St NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tiffany Beckman, M.D., M.P.H.Endocrinology, Diabetes & Metabolism Physician1174528939
- Katharine BertinRegistered Nurse1295684025
- Karen Black, RNLicensed Practical Nurse1346366630
Verify Mark A. Ellis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Minnesota board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average dentist in 2024
17 Medicare Part D claims for 15 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.
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 A. Ellis among 1,794 dentist records in Minnesota
Mark A. Ellis, DDS is one of 1,794 dentist records with a practice address in Minnesota. 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 2009, is newer than 48% of them.
- NPI issued2009 · 48% of these records are older, 50% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileNo · 1% of these records are
- Record last updated2009 · 69% 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 Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 dentist records list a practice address in Cass Lake
They are 3 of the 169 NPPES records with a practice address in Cass Lake, and 1,794 dentist records in Minnesota.
All 1,794 in Minnesota → Every provider in Cass Lake → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Brandy Larson, DDSCass Lake, MN 566331750450227
- Robert Mork, DDSCass Lake, MN 566331720189467
- Jeffrey Carter, DDSDeer River, MN 566361619949328
- Lucy Corrin, DDSBigfork, MN 566281770073322
- Suanne Dullard, DDSBigfork, MN 566281649218231
- Christine Gelo, D.D.SInternational Falls, MN 566491679920805
- Trevor Andrews, DDSBemidji, MN 566011013447069
- Ravi Gupta, D.D.S.Bemidji, MN 566011235435215
Common questions
What is Mark A. Ellis, DDS's NPI number?
Mark A. Ellis, DDS's National Provider Identifier (NPI) is 1154655082, issued on Sep 24, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Mark A. Ellis, DDS located?
The NPPES record lists a practice address at 425 7TH St NW, Cass Lake, MN, 56633. Phone: (218) 335-3230. Providers update this record themselves, so call before visiting.
How can I verify Mark A. Ellis, DDS's license?
Search the Minnesota board that licenses this profession; the NPPES record confirms identity only.
How much does Mark A. Ellis, DDS prescribe under Medicare Part D?
In 2024, Mark A. Ellis, DDS had 17 Medicare Part D claims for 15 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.