Matthew A. Stack, PA C
Physician Assistant · Ithaca, MI
Matthew A. Stack, PA C is a physician assistant 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 A. Stack
- Credential
- PA C
- Primary taxonomy
- Physician Assistant 363A00000X
- 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
- Record last updated
- Feb 5, 2026
- Medicaid ID
- 762246 AZ
- Medicare enrollment
- Enrolled (PECOS I20101013000935); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 6,989 in Michigan → Look up another NPI →
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 A. 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
33% fewer Medicare Part D claims than the average physician assistant in 2024
554 Medicare Part D claims for 46 beneficiaries, against an average of 830 among the 101,058 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; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 64,719 providers of this specialty with any payment received $841.65 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.
Bills Medicare through 2 group practices
- Genesee Health SystemFlint, MI
- Trauma And Addiction Solutions, PLLCIthaca, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew A. Stack among 6,989 physician assistant records in Michigan
Matthew A. Stack, PA C is one of 6,989 physician assistant records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 98% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2002 · median 2017 among the 4,739 with a school on file
- Record last updated2026 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 physician assistant records list a practice address in Ithaca
They are 3 of the 52 NPPES records with a practice address in Ithaca, and 6,989 physician assistant records in Michigan.
All 6,989 in Michigan → Every provider in Ithaca → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Catherine Chimo, PAIthaca, MI 488471508896523
- Thomas Knight, PA CIthaca, MI 488471396719878
- Jonathon Baxter, PA-CIonia, MI 488461417423526
- Patricia Donahue, PAIonia, MI 488461972841419
- Linda Ducat, PA-CIonia, MI 488461528133683
- Blake GeschkeIonia, MI 488461710422696
- Paul Lanzon, P.A.Ionia, MI 488461265751424
- Jamie Manning, P.A.Ionia, MI 488461720414923
Common questions
What is Matthew A. Stack, PA C's NPI number?
Matthew A. 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 A. 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 A. 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 A. Stack, PA C prescribe under Medicare Part D?
In 2024, Matthew A. Stack, PA C had 554 Medicare Part D claims for 46 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions 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.
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.