Individual provider

Astin Mills, AG-ACNP

Adult Health Nurse Practitioner Acute Care Nurse Practitioner Medicare enrolled

Astin Mills, AG-ACNP is an Acute Care Nurse Practitioner in Portland, OR, registered under NPI 1255151544. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 3181 SW SAM JACKSON PARK RD, Portland, OR 97239. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

3181 SW SAM JACKSON PARK RD, Portland, OR 97239 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
10033752 OR Adult Health Nurse Practitioner
10033752 OR Acute Care Nurse Practitioner primary

This provider holds licence 10033752 issued in OR. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Nurse Practitioner
PAC ID
9830612449
Enrollment ID
I20250325000366

Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Acute Care covers

Definition to come... NUCC Health Care Provider Taxonomy, code 363LA2100X
Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner Acute Care

All registered taxonomy codes

This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
363LA2200X Adult Health Nurse Practitioner Adult Health 10033752 OR
363LA2100X Acute Care Nurse Practitioner Acute Care 10033752 OR primary

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1255151544 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateOct 12, 2024
Last updatedJun 2, 2026
StatusActive
Sole proprietorNo
GenderFemale
CredentialAG-ACNP
Practice address 3181 SW SAM JACKSON PARK RD
Portland, OR 97239
(503) 494-8311
Mailing address 1400 SW 5TH AVE STE 500
Portland, OR 97201
Other names Astin Bush Other Name
This record was updated on Jun 2, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1255151544 passes the NPI check digit test The final digit 4 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 2 5 5 1 5 1 5 4
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 2 1 5 2 5 2 5 8

Sum = 56 · next multiple of 10 = 60 · check digit = 4 · actual last digit = 4

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1255151544?
NPI 1255151544 is the National Provider Identifier assigned to Astin Mills, AG-ACNP in Portland, OR. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Acute Care cover?
Definition to come...
How do I contact Astin Mills, AG-ACNP?
The phone number on file with NPPES is (503) 494-8311, last updated Jun 2, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Astin Mills, AG-ACNP accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1255151544 a valid number?
Yes. 1255151544 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.