Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Kristi Lynn Hainstock, PHD

Individual provider Psychologist · NPI 1639444391

Dr. Kristi Lynn Hainstock, PHD is a Clinical Psychologist in Bay City, Michigan. Qualified in 2011, 15 years ago. Practices with Partners in Change Psychological and Community Services, PLC, a 20-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
15
Licensed in
MI
In the registry since
2012
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

2919 Wilder Rd Ste 2
Bay City, MI 48706-9299
Phone: (989) 671-5757
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 6301015359 (MI)

Record details

NPI number1639444391
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedMarch 14, 2012
Last updated in NPPESMarch 26, 2021
Certification dateMarch 26, 2021

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Partners In Change Psychological And Community Services, Plc — 20 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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