Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Mark J Erwin, PA-C
Physician Assistant in Spokane, WA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1881693919
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Registry record
Entity type Individual (Type 1)
Name Mr. Mark J Erwin
Credential PA-C
Sex Male
Practice address 5633 N Lidgerwood St, Spokane, WA, 99208
Phone (509) 252-6336
Fax (509) 252-6337
Enumeration date Jul 20, 2005
Last updated in NPPES Mar 30, 2016
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA10004364 (WA) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 8331779 | Medicaid | WA | - |
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.
Frequently asked questions
Is NPI 1881693919 active?
Yes, as of the latest NPPES snapshot, NPI 1881693919 is active (record last updated 2016-03-30).
How do I verify Mark Erwin's NPI record?
Cross-check NPI 1881693919 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-30.