Matthew Stack, PA C
Psychologist · Ithaca, MI
Matthew Stack, PA C is a psychologist with a practice address in Ithaca, Michigan, and NPI 1033108667, issued on Oct 17, 2005. Check the license (Michigan 5601003961, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Matthew Stack
- Credential
- PA C
- Primary taxonomy
- Psychologist 103T00000X
- License numbers
- 5601003961 MI
6301007939 MI
2782 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 121 N Pine River St, Ithaca, MI 48847
- Phone
- (989) 287-0662
- Enumerated
- Oct 17, 2005
- Entity
- Type 1 · individual
Also registered at 121 N Pine River St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aubree Akers, FNPFamily Nurse Practitioner1982321378
- Elizabeth Hackert-Neff, MA LPCProfessional Counselor1528210366
- Cora Pavlik, FNPFamily Nurse Practitioner1043704133
- Michael Stack, M.D.Family Medicine Physician1932146685
Verify Matthew Stack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 5601003961Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
25% fewer Medicare Part D claims than the average psychologist in 2024
554 Medicare Part D claims for 46 beneficiaries, against an average of 741 among the 100 providers of this specialty who prescribed in Part D.
Most prescribed
- Mirtazapine33 claims
- Quetiapine Fumarate27 claims
- Divalproex Sodium25 claims
- Olanzapine25 claims
- Paliperidone Er25 claims
- Aripiprazole22 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $40.29
2 payments, mostly food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc.. The 36 providers of this specialty with any payment received $1,861.74 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospital and facility affiliations
- Genesee Health SystemFlint, MI
- Trauma And Addiction Solutions, PLLCIthaca, MI
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
1 psychologist records list a Ithaca practice address
They are 1 of the 52 NPPES records with a Ithaca practice address, and 2,558 psychologist records in Michigan.
Other psychologist records in Michigan
- Linda Aardema, PSY S PCBirmingham, MI1659391670
- Azad Abbasi, M.S.Detroit, MI1043632862
- Ann Abbey, MA, LLP, RYTRoyal Oak, MI1962034736
- Ban Abbo, MA, LLPCommerce Township, MI1588992499
- Sarah Abdel-Wahab-O'Brien, LLPYpsilanti, MI1518614262
- Inaam AbdulkarimWalled Lake, MI1891392577
- Max Abelman, M. A., L. L. P.Detroit, MI1346433505
- Jeannah Rose Abou AssalyAnn Arbor, MI1174483515
- Atara Abramsky, PH.DSouthfield, MI1497182828
- Maha Abu-Hamdan, PHD, LLPOxford, MI1356689327
Common questions
What is Matthew Stack, PA C's NPI number?
Matthew Stack, PA C's National Provider Identifier (NPI) is 1033108667, issued on Oct 17, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Stack, PA C located?
The NPPES record lists a practice address at 121 N Pine River St, Ithaca, MI, 48847. Phone: (989) 287-0662. Providers update this record themselves, so call before visiting.
How can I verify Matthew Stack, PA C's license?
NPPES lists Michigan license number 5601003961, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Matthew Stack, PA C prescribe under Medicare Part D?
In 2024, Matthew Stack, PA C had 554 Medicare Part D claims for 46 beneficiaries; the average among psychologist prescribers was 741. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.