Erin Armstrong PA
Also known as
- Formerly known asWilliams, Erin
Source: NPPES public registry.
About this NPIWhat this record shows.
NPI 1700755766 is registered to Erin Armstrong PA, a Physician Assistant practising at 2100 W Iowa Ave in Chickasha, Oklahoma. Physician Assistant is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Erin Armstrong PA has been enumerated in the National Provider Identifier (NPI) registry since 2025.
Your brand here.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20260310001697Physician AssistantOK
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Erin Armstrong PA accepts. To confirm in-network status with your specific health plan, contact Erin Armstrong PA directly at (405) 224-2100.
Frequently asked
Yes. NPI 1700755766 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Physician Assistant is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (405) 224-2100.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Erin Armstrong PA is a Type-1 individual NPI.