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JOSHUA LEVI MAYFIELD PA-C
NPI 1144475559
Physician Assistant in Pomeroy, WA

Active since November 26, 2008PECOS Enrolled
66 N 6TH ST, POMEROY, WA 99347(509) 843-1591(509) 843-6157 Get Directions Write a Review

NPPES record last updated: June 9, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 9, 2025, Aug 18, 2017 (2 updates tracked since 2017).

About Joshua Levi Mayfield Pa-c NPPES

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

JOSHUA LEVI MAYFIELD PA-C (NPI 1144475559) is an individual physician assistant in Pomeroy, Washington, licensed in Washington (PA60055375) and active in the NPI registry since November 2008. He is enrolled in Medicare PECOS, is affiliated with St Joseph Regional Medical Center, and maintains a secondary practice location in Grand Coulee.

NPPES Registry Identity

NPI1144475559
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameJOSHUA LEVI MAYFIELDCredential: PA-C
Location Address66 N 6TH STPomeroy, WA 99347-9705
Mailing Address66 N 6th StPomeroy, WA 99347-9705 · (509) 843-1591 · Fax (509) 843-6157
Phone(509) 843-1591
Fax(509) 843-6157
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateNovember 26, 2008
Last NPPES UpdateJune 9, 20252 updates tracked since enumeration
NPPES CertifiedJune 9, 2025
✔ NPI 1144475559 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in WA · PA60055375
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
66 N 6TH ST, Pomeroy, WA 99347
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Other Names 1

Professional Name (2)Joshua Levi Mayfield Pa60055375

Secondary Practice Location 1

Location 1411 Fortuyn RdGrand Coulee, WA 99133-8718 · Phone (509) 633-1753

Other Identifiers 1

OtherPA60055375WA · Pa License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joshua Levi Mayfield Pa-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7113081472
PECOS Enrollment IDI20090130000588, I20100312000872
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 3

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.

Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
19 services18 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
16 services11 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
15 services15 patients

Hospital Affiliations CMS Care Compare 5

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

St Joseph Regional Medical Center

Acute Care Hospitals · Lewiston, ID
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number130003
Location415 Sixth StreetLewiston, ID 83501 · Nez Perce County
Emergency services Birthing friendly

Deaconess Medical Center

Acute Care Hospitals · Spokane, WA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500044
LocationW 800 Fifth AvenueSpokane, WA 99210 · Spokane County
Emergency services Birthing friendly

Garfield County Public Hospital District #1

Critical Access Hospitals · Pomeroy, WA
OwnershipGovernment - Hospital District or Authority
CMS Certification Number501301
Location66 North Sixth StreetPomeroy, WA 99347 · Garfield County
Emergency services

Coulee Medical Center

Critical Access Hospitals · Grand Coulee, WA
OwnershipGovernment - Hospital District or Authority
CMS Certification Number501308
Location411 Fortuyn RoadGrand Coulee, WA 99133 · Grant County
Emergency services

Whitman Hospital And Medical Center

Critical Access Hospitals · Colfax, WA
2/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number501327
Location1200 West FairviewColfax, WA 99111 · Whitman County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99347 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
$71.29 typical visit price
range $18.56 – $141.11
Typical copayment $17.82 (range $4.64 – $35.27)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers11 claims11 services$119.60 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 11

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

GARFIELD COUNTY MEMORIAL HOSPITAL DISTRICT
Skilled Nursing Facility
66 N 6TH ST
POMEROY, WA 99347
Garfield County (509) 843-1591
GARFIELD COUNTY HOSPITAL DISTRICT
Skilled Nursing Facility
66 N 6TH ST
POMEROY, WA 99347
Garfield County (509) 843-1591
GARFIELD COUNTY MEMORIAL HOSPITAL RADIOLOGY
General Acute Care Hospital (Critical Access)
66 N 6TH ST
POMEROY, WA 99347
Garfield County (509) 843-1591
SUZANNE M GROVE ARNP
Nurse Practitioner (Family)
66 N 6TH ST
POMEROY, WA 99347
Garfield County (509) 843-1591
JANIS J WHITEHEAD RN, FNP
Nurse Practitioner (Primary Care)
66 N 6TH ST
POMEROY, WA 99347
Garfield County (509) 843-1591
DR. MATHEW SLAYBAUGH DPT
Physical Therapist
66 N 6TH ST
POMEROY, WA 99347
Garfield County (509) 843-1591
GARFIELD COUNTY MEMORIAL HOSPITAL DISTRICT
Medicare Defined Swing Bed Unit
66 N 6TH ST
POMEROY, WA 99347
Garfield County (509) 843-1591
BRIAN ALAN MABRY BRIAN MABRY
Physician Assistant (Medical)
66 N 6TH ST
POMEROY, WA 99347
Garfield County (509) 843-1591

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 Joshua Mayfield's NPI number?

The NPI number for Joshua Mayfield is 1144475559. It was assigned to this individual provider in the NPPES registry on November 26, 2008. The provider is also known as Joshua Levi Mayfield Pa60055375.

Where is Joshua Mayfield located?

Joshua Mayfield practices at 66 N 6th St, Pomeroy, WA 99347. The listed phone number is (509) 843-1591.

What is Joshua Mayfield's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Joshua Mayfield enrolled in Medicare?

Yes. Joshua Mayfield is registered in the Medicare PECOS enrollment system.

What insurance does Joshua Mayfield accept?

Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Joshua Mayfield 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 Joshua Mayfield affiliated with any hospitals?

According to CMS data, Joshua Mayfield is affiliated with St Joseph Regional Medical Center, Deaconess Medical Center, Garfield County Public Hospital District #1, Coulee Medical Center and Whitman Hospital And Medical Center.

When was this NPI record last updated?

The NPPES record for Joshua Mayfield was last updated on June 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.