Matthew A Stack, PA C
Matthew A Stack is a Physician Assistant provider (Physician Assistant) practicing in Ithaca, MI, registered in the NPPES registry with NPI 1033108667 since 2005.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1033108667 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Matthew A Stack |
| Credential | PA C |
| Sex | Male |
| Practice address | 121 N PINE RIVER ST, Ithaca, MI, 48847 |
| Phone | 9892870662 |
| Enumeration date | 2005-10-17 |
| Last updated in NPPES | 2026-02-05 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103T00000X | Psychologist | Secondary | 6301007939 | MI |
| 363AM0700X | Medical Physician Assistant | Secondary | — | — |
| 363A00000X | Physician Assistant | Secondary | 2782 | AZ |
| 363A00000X | Physician Assistant | Primary | 5601003961 | MI |
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| P00140431 | Other | AZ | RAILROAD |
| 0852900260 | Other | MI | BCBSM |
| 762246 | Medicaid | AZ | — |
| 50155318 | Other | NM | MEDICAID |
Copy-ready billing details
Provider: Matthew Stack, PA C NPI: 1033108667 Taxonomy: 363A00000X (Physician Assistant) Address: 121 N PINE RIVER ST, Ithaca, MI, 48847
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1376580175 | Michael Stack MD PC | Organization | Rural Health Clinic/Center | Ithaca, MI |
| 1932146685 | Michael Stack | Individual | Family Medicine Physician | Ithaca, MI |
| 1528210366 | Elizabeth Hackert-Neff | Individual | Professional Counselor | Ithaca, MI |
| 1538301668 | Mymichigan Medical Center Alma | Organization | Rural Health Clinic/Center | Ithaca, MI |
| 1043704133 | Cora Pavlik | Individual | Family Nurse Practitioner | Ithaca, MI |
| 1982321378 | Aubree Akers | Individual | Family Nurse Practitioner | Ithaca, MI |
| 1174381974 | Trauma and Addiction Solutions Pllc | Organization | Mental Health Clinic/Center (Including Community Mental Health Center) | Ithaca, MI |
Verify this record
Cross-check NPI 1033108667 against the authoritative CMS record: view Matthew A Stack on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-02-05.