GRAYCEN DUFFY ARNP
NPI 1851839682
Nurse Practitioner - Family in Walla Walla, WA

Active since January 31, 2017PECOS EnrolledAccepts Medicare Assignment
380 CHASE AVE, WALLA WALLA, WA 99362(509) 897-3700(509) 897-5575 Get Directions Write a Review

NPPES record last updated: May 11, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 11, 2021, Jan 31, 2017 (2 updates tracked since 2017).

About Graycen Duffy Arnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GRAYCEN DUFFY ARNP (NPI 1851839682) is an individual family provider in Walla Walla, Washington, licensed in Washington (AP 60725057) and active in the NPI registry since January 2017. She is enrolled in Medicare PECOS, is affiliated with Providence St Mary Medical Center, and maintains a secondary practice location in Walla Walla.

NPPES Registry Identity

NPI1851839682
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameGRAYCEN DUFFYCredential: ARNP
Location Address380 CHASE AVEWalla Walla, WA 99362-2924
Mailing Address380 Chase AveWalla Walla, WA 99362-2924 · (509) 897-3700 · Fax (509) 897-5575
Fax(509) 897-5575
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateJanuary 31, 2017
Last NPPES UpdateMay 11, 20212 updates tracked since enumeration
NPPES CertifiedMay 11, 2021
NPI 1851839682 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License Licensed in WA · AP 60725057
380 CHASE AVE, Walla Walla, WA 99362

Secondary Practice Location 1

Location 11111 S 2nd AveWalla Walla, WA 99362-4118 · Phone (509) 897-3700 · Fax (509) 897-5575

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Graycen Duffy Arnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4981988607
PECOS Enrollment IDI20170224001065
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
292 services251 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
94 services89 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
58 services53 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
40 services35 patients
Training for self-care or home management, each 15 minutes 97535
This service involves training sessions, each lasting 15 minutes, focused on teaching you essential self-care or home management skills. You'll learn techniques to manage your health condition at home, promoting independence and enhancing your quality of life.
35 services34 patients
Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes 97110
This therapy involves exercises to boost strength, endurance, flexibility, and range of motion. Each session lasts 15 minutes. The goal is to improve physical function and overall health. It's a safe, beneficial method for enhancing well-being and fitness.
19 services19 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Providence St Mary Medical Center

Acute Care Hospitals · Walla Walla, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500002
Location401 W Poplar StWalla Walla, WA 99362 · Walla Walla County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99362 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$88.29 typical visit price
range $57.27 – $172.80
Typical copayment $22.07 (range $14.31 – $43.20)
Most-billed visit code 99203
Established Patient
$100.78 typical visit price
range $18.56 – $141.11
Typical copayment $25.19 (range $4.64 – $35.27)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Physician Assistant
380 CHASE AVE
WALLA WALLA, WA 99362
Durable Medical Equipment & Medical Supplies
380 CHASE AVE
WALLA WALLA, WA 99362
Nurse Practitioner (Family)
380 CHASE AVE
WALLA WALLA, WA 99362
Pharmacist
380 CHASE AVE
WALLA WALLA, WA 99362
Physician Assistant (Surgical)
380 CHASE AVE
WALLA WALLA, WA 99362
Surgery
380 CHASE AVE
WALLA WALLA, WA 99362
Physical Therapist (Geriatrics)
380 CHASE AVE
WALLA WALLA, WA 99362
Surgery
380 CHASE AVE
WALLA WALLA, WA 99362

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Graycen Duffy's NPI number?

The NPI number for Graycen Duffy is 1851839682. It was assigned to this individual provider in the NPPES registry on January 31, 2017.

Where is Graycen Duffy located?

Graycen Duffy practices at 380 Chase Ave, Walla Walla, WA 99362. The listed phone number is (509) 897-3700.

What is Graycen Duffy's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Graycen Duffy enrolled in Medicare?

Yes. Graycen Duffy is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Graycen Duffy accept?

Health plans from Moda Health Plan, Inc., PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Graycen Duffy as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Graycen Duffy affiliated with any hospitals?

According to CMS data, Graycen Duffy is affiliated with Providence St Mary Medical Center.

When was this NPI record last updated?

The NPPES record for Graycen Duffy was last updated on May 11, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.