Mark Leeson
Social Worker · Holland, MI
Mark Leeson is a social worker with a practice address in Holland, Michigan, and NPI 1265805782, issued on Nov 5, 2015. Check the license (Michigan 6801095023, as entered in NPPES) with the Michigan board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark Leeson
- Primary taxonomy
- Social Worker 104100000X
- License number
- 6801095023 MI
Self-reported in NPPES; status is on the state search - Practice location
- 426 Century LN, Holland, MI 49423
- Phone
- (616) 396-5326
- Enumerated
- Nov 5, 2015
- Record last updated
- Nov 5, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest social worker records → All 9,114 in Michigan → Look up another NPI →
Also registered at 426 Century LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carrie Benchich, LPCCounselor1679946107
Verify Mark Leeson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 6801095023Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark Leeson among 9,114 social worker records in Michigan
Mark Leeson is one of 9,114 social worker records with a practice address in Michigan. 7% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2015, is newer than 36% of them.
- NPI issued2015 · 36% of these records are older, 58% newer
- In a Medicare fileNo · 7% of these records are
- In the CMS Doctors and Clinicians fileNo · 10% of these records are
- Record last updated2015 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
111 social worker records list a practice address in Holland
They are 111 of the 2,124 NPPES records with a practice address in Holland, and 9,114 social worker records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 9,114 in Michigan → Every provider in Holland → Social Worker nationwide →
The 8 social worker records with the nearest ZIP codes
- Naomi Betancourt, LMSWHolland, MI 494231639486038
- Claire BroekhuizenHolland, MI 494231205205754
- Susan Conrad, MSWHolland, MI 494231609110873
- Leah DreyerHolland, MI 494231124560065
- Judith Froedtert, LMSW, ACSW, DCSWHolland, MI 494231225143183
- Lorene Geary, LMSW, ACSWHolland, MI 494231730294687
- Elizabeth Harsevoort, LMSWHolland, MI 494231831407279
- Brandon MelnykHolland, MI 494231225570815
Common questions
What is Mark Leeson's NPI number?
Mark Leeson's National Provider Identifier (NPI) is 1265805782, issued on Nov 5, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Mark Leeson located?
The NPPES record lists a practice address at 426 Century LN, Holland, MI, 49423. Phone: (616) 396-5326. Providers update this record themselves, so call before visiting.
How can I verify Mark Leeson's license?
NPPES lists Michigan license number 6801095023, as entered by the provider. Search the Michigan 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. 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.