Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mary Holwerda

Individual provider Professional Counselor · NPI 1114597580

Mary Holwerda is a Mental Health Counselor in Grand Haven, Michigan. Qualified in 2003, 23 years ago. Practices with Start and Associates Psychological Support LLC, an 8-clinician group and accepts Medicare assignment.

Years since qualifying
23
In the registry since
2021
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Practice location Address checks out

320 Columbus Ave
Grand Haven, MI 49417-1289
Phone: (616) 607-4476
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Professional Counselor (primary) Taxonomy 101YP2500X · Licence 6401009154

Record details

NPI number1114597580
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedJune 29, 2021
Last updated in NPPESJune 29, 2021
Certification dateJune 29, 2021
Mailing address320 Columbus Ave, Grand Haven, MI 49417-1289

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyMENTAL HEALTH COUNSELOR
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Start And Associates Psychological Support Llc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Grand Haven