Mark Joseph Lonergan, D.M.D.
Oral and Maxillofacial Surgery (Dentist) · Holland, MI
Mark Joseph Lonergan, D.M.D. is an oral and maxillofacial surgery (dentist) with a practice address in Holland, Michigan, and NPI 1952384521, issued on Nov 28, 2005. Check the license with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Joseph Lonergan
- Credential
- D.M.D.
- Primary taxonomy
- Oral and Maxillofacial Surgery (Dentist) 1223S0112X
- License number
- 2901016242 PA
Self-reported in NPPES; status is on the state search - Practice location
- 601 Michigan Ave, Holland, MI 49423
- Phone
- (616) 392-2329
- Enumerated
- Nov 28, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (616) 392-9610
- Medicaid IDs
- 2987145 MI
2980879 MI - Entity
- Type 1 · individual
8 nearest oral and maxillofacial surgery (dentist) records → All 237 in Michigan → Look up another NPI →
Also registered at 601 Michigan Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sabrina Ambrose, PTAPhysical Therapy Assistant1871521971
- Korrie Ashworth, PTPhysical Therapist1730318163
- Angela Kiekover, PTPhysical Therapist1891838694
- Brittany Mailloux-Kross, DDSGeneral Practice Dentistry1174844252
- Nicholas Platko, DPTPhysical Therapist1396021275
- Pamela Terborg, PTPhysical Therapist1386993772
Verify Mark Joseph Lonergan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan 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
10% more Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024
448 Medicare Part D claims for 189 beneficiaries, against an average of 406 among the 5,870 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 114 claims were for opioids.
Most prescribed
- Chlorhexidine Gluconate149 claims
- Amoxicillin144 claims
- Hydrocodone-Acetaminophen92 claims
- Acetaminophen-Codeine19 claims
- Amoxicillin-Clavulanate Potass16 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 Joseph Lonergan among 237 oral and maxillofacial surgery (dentist) records in Michigan
Mark Joseph Lonergan, D.M.D. is one of 237 oral and maxillofacial surgery (dentist) records with a practice address in Michigan. 73% 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, 91% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 27% of these records are
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223S0112X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Oral and Maxillofacial Surgery (Dentist) providers in Michigan
There are 237 oral and maxillofacial surgery (dentist) records in Michigan.
All 237 in Michigan → Every provider in Holland → Oral and Maxillofacial Surgery (Dentist) nationwide →
The 8 oral and maxillofacial surgery (dentist) records with the nearest ZIP codes
- Jeffrey Deyoung, D.D.S.Holland, MI 494231932638822
- George Kirby, M.D, D.D.S.Holland, MI 494231770846834
- Clare Van Wieren, D.D.S.Holland, MI 494231649254707
- Jeffrey Lindhout, DDS MSGrandville, MI 494181073506390
- Calvin Panah, DDSWyoming, MI 494181528713211
- David Strand, DDS,MSGrandville, MI 494181770675225
- Ashley HouleGrand Haven, MI 494171235526765
- Keith Nalley, DDS, MSGrand Haven, MI 494171528041605
Common questions
What is Mark Joseph Lonergan, D.M.D.'s NPI number?
Mark Joseph Lonergan, D.M.D.'s National Provider Identifier (NPI) is 1952384521, issued on Nov 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Joseph Lonergan, D.M.D. located?
The NPPES record lists a practice address at 601 Michigan Ave, Holland, MI, 49423. Phone: (616) 392-2329. Providers update this record themselves, so call before visiting.
How can I verify Mark Joseph Lonergan, D.M.D.'s license?
Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Joseph Lonergan, D.M.D. prescribe under Medicare Part D?
In 2024, Mark Joseph Lonergan, D.M.D. had 448 Medicare Part D claims for 189 beneficiaries; the average among oral and maxillofacial surgery (dentist) prescribers was 406. 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.