NPPES file of Aug 9, 2026

Kristi Lynn Hainstock, PHD

Psychologist · Bay City, MI

Kristi Lynn Hainstock, PHD is a psychologist with a practice address in Bay City, Michigan, and NPI 1639444391, issued on Mar 14, 2012. Check the license (Michigan 6301015359, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639444391
Name
Kristi Lynn Hainstock
Credential
PHD
Primary taxonomy
Psychologist 103T00000X
License number
6301015359 MI
Self-reported in NPPES; status is on the state search
Practice location
2919 Wilder RD, Bay City, MI 48706
Phone
(989) 671-5757
Enumerated
Mar 14, 2012
Record last updated
Mar 26, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140721000456); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest psychologist records → All 2,549 in Michigan → Look up another NPI →

Also registered at 2919 Wilder RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Molly BaderBehavior Technician1689364903
  2. Lauren BedellBehavior Analyst1447133376
  3. Alyssa Bickel, SLPSpeech-Language Pathologist1588117857
  4. Tracy Brandenburg, MDInternal Medicine Physician1700989704
  5. Ashley Burgoyne, M.S. CCC-SLP, BCBASpeech-Language Pathologist1851725337
  6. Alexis Corless, BCBABehavior Analyst1497324859

Verify Kristi Lynn Hainstock in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 6301015359    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Michigan license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Partners IN Change Psychological And Community Services, PLCMidland, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kristi Lynn Hainstock among 2,549 psychologist records in Michigan

Kristi Lynn Hainstock, PHD is one of 2,549 psychologist records with a practice address in Michigan. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 53% of them.

  • NPI issued2012 · 53% of these records are older, 44% newer
  • In a Medicare fileYes · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 12% of these records are
  • Graduated2011 · median 1999 among the 308 with a school on file
  • Record last updated2021 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychologist providers in Michigan

There are 2,549 psychologist records in Michigan.

All 2,549 in Michigan → Every provider in Bay City → Psychologist nationwide →

The 8 psychologist records with the nearest ZIP codes

  1. Lynn Butterfield, LMSW LLPBay City, MI 487061487751095
  2. Nancy Gardner, LP, LPCBay City, MI 487061871723577
  3. Kelsey Laskowski, TLLPBay City, MI 487061942699590
  4. Joseph Miller, PSYDBay City, MI 487061285742759
  5. David Pickering, M.S. LLPBay City, MI 487061437446903
  6. Michael Wilson, M.S. LLPBay City, MI 487061386931848
  7. Patrick BakerBay City, MI 487081932520293
  8. Deborah Hastings, MA LLPBay City, MI 487081295926400

Common questions

What is Kristi Lynn Hainstock, PHD's NPI number?

Kristi Lynn Hainstock, PHD's National Provider Identifier (NPI) is 1639444391, issued on Mar 14, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Kristi Lynn Hainstock, PHD located?

The NPPES record lists a practice address at 2919 Wilder RD, Bay City, MI, 48706. Phone: (989) 671-5757. Providers update this record themselves, so call before visiting.

How can I verify Kristi Lynn Hainstock, PHD's license?

NPPES lists Michigan license number 6301015359, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.