Individual
MARK ZELLNER
Active
Sole proprietor
Yes
Provider details
NPI number
Gender
Man
Credential
MS
Contact information
Practice address
142 E MAUMEE ST, ADRIAN, MI 49221-2735
(517) 442-2991
Mailing address
143 UNION ST, HILLSDALE, MI 49242-1331
(517) 442-2991
Taxonomy
Speciality
Code
Description
License number
State
101YM0800X
Mental Health Counselor
Primary
6451024862
MI
Other
Enumeration date
03/16/2026
Last updated
03/16/2026
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