Active NPI 1144475559 Individual Practitioner Male Practitioner

Joshua Levi Mayfield , PA-C

Physician Assistant • Pomeroy, WA

Professional Overview & Biography Verified Profile Summary

Joshua Mayfield, PA-C is a certified Physician Assistant practicing in Pomeroy, WA. With approximately 18 years of clinical experience since completing medical education in 2008, Joshua Mayfield delivers high-quality medical care to the local community at 66 N 6TH ST.

Joshua Mayfield maintains professional affiliations with Spokane Emergency Care Physicians Pllc, Douglas, Grant, Lincoln And Okanogan Counties Public Hospital District, Public Hospital District No 3 Of Whitman County and does not directly accept Medicare assignment.

Frequently performed procedures and clinical services include hospital discharge day management, subsequent hospital care with moderate levelof medical decision making, if using time, at least, initial hospital care with straightforward or low-level medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

66 N 6th St

Pomeroy, WA 993479705

Telephone 5098431591

Fax 5098436157

Associated Practice Facility / Clinic

🏢 Garfield County Memorial Hospital District Facility NPI 1023119500

Medicare Profile & Education

Medical School

Other

Graduation Year

2008

Medicare Assignment

Not Specified

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Pomeroy, WA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

18 Yrs Matches City Avg

City Avg: 18.0 Yrs

State Avg: 12.1 Yrs

Regional Practice Density

1 Specialists

Practicing in Pomeroy, WA (3774 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

76.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Mayfield (18 Years) 18 Yrs

Pomeroy Specialty Average (18.0 Years) 18.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99238 Hospital discharge day management, 30 minutes or less	19	18	$411.47	$67.39
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	16	11	$228.00	$65.50
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	15	15	$403.73	$108.44

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	13	13	$1930.00	$145.86

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	44	44	$1930.00	$147.96
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	17	17	$75.00	$6.94
99217 Hospital observation care on day of discharge	16	16	$554.38	$59.72
99284 Emergency department visit with moderate level of medical decision making	16	16	$1307.00	$101.72
93042 Interpretation and report of electrical activity of heart using 1-3 leads	15	15	$65.00	$5.78
99291 Critical care, first 30-74 minutes	11	11	$2471.00	$181.48

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	40	39	$1916.92	$150.68
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	30	30	$75.00	$7.06
99283 Emergency department visit with low level of medical decision making	14	13	$689.00	$60.91
99291 Critical care, first 30-74 minutes	12	12	$2471.00	$185.22

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	64	63	$1881.00	$149.32
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	51	51	$73.59	$7.35
99284 Emergency department visit with moderate level of medical decision making	44	44	$1280.23	$102.63
99283 Emergency department visit with low level of medical decision making	29	27	$665.34	$55.81
99291 Critical care, first 30-74 minutes	21	21	$2423.00	$191.58
99224 Subsequent observation care, typically 15 minutes per day	19	14	$160.37	$34.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	304	296	$1956.07	$148.29
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	193	191	$87.41	$7.32
99284 Emergency department visit with moderate level of medical decision making	177	166	$1308.75	$100.94
99283 Emergency department visit with low level of medical decision making	152	135	$694.42	$52.97
99291 Critical care, first 30-74 minutes	67	67	$2434.70	$191.14
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	35	19	$95.00	$21.95

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	267	251	$1960.79	$145.38
99284 Emergency department visit with moderate level of medical decision making	163	153	$1324.60	$99.46
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	155	150	$96.20	$7.22
99283 Emergency department visit with low level of medical decision making	141	119	$697.45	$52.46
99291 Critical care, first 30-74 minutes	61	60	$2454.89	$189.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99284 Emergency department visit with moderate level of medical decision making	236	220	$1275.44	$97.82
99285 Emergency department visit for life threatening or functioning severity	235	231	$1885.89	$143.60
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	151	148	$92.70	$7.10
99283 Emergency department visit with low level of medical decision making	118	101	$674.16	$51.60
99291 Critical care, first 30-74 minutes	11	11	$2224.00	$186.63

Medical Specialties & State Licenses

CMS Verified: 2025-06-09

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License WA PA60055375

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.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID Pa License

PA60055375 (WA)

Hospital & Practice Group Affiliations

Public Hospital District No 3 Of Whitman County

1210 W Fairview St, Colfax, WA 991119552

Phone: 5093974717

Public Hospital District No 3 Of Whitman County

1200 W Fairview St, Colfax, WA 991119552

Phone: 5093973435

Spokane Emergency Care Physicians Pllc

800 W 5th Ave, Spokane, WA 992042803

Phone: 5094737101

Sound Physicians Emergency Medicine Of Washington Pllc

3810 Plaza Way, Kennewick, WA 993382722

Phone: 5099417000

Douglas, Grant, Lincoln And Okanogan Counties Public Hospital District

411 Fortuyn Rd, Grand Coulee, WA 991338718

Phone: 5096331753

Public Hospital District No 3 Of Whitman County

1200 W Fairview St, Colfax, WA 991119552

Phone: 5093973435551

Garfield County Memorial Hospital District

446 Pataha St, Pomeroy, WA 993478634

Phone: 5098431591

Spokane Emergency Care Physicians Pllc

12606 E Mission Ave, Spokane Valley, WA 992163421

Phone: 5094735177

Public Hospital District No 3 Of Whitman County

1200 W Fairview Rd, Colfax, WA 991119552

Garfield County Memorial Hospital District

66 N 6th St, Pomeroy, WA 993479705

Secondary Practice Locations

411 Fortuyn Rd

Grand Coulee, WA 991338718

Phone: 5096331753

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

5 Associated Practitioners

Suzanne Grove , ARNP

Nurse Practitioner - Family

NPI 1124127071

Advanced Registered Nurse Practitioner

Janis Whitehead , RN, FNP

Nurse Practitioner - Primary Care

NPI 1316930795

Registered Nurse, Family Nurse Practitioner

Dr. Mathew Slaybaugh , DPT

Physical Therapist

NPI 1336628791

Doctor of Physical Therapy

Brian Mabry , BRIAN MABRY

Physician Assistant - Medical

NPI 1427300052

BRIANMABRY

Brianna Shrofe

Nurse's Aide

NPI 1457200933

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

11 Historical Events

✅

NPI Profile Active August 18, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location August 18, 2017

Registered at 66 N 6TH ST, POMEROY, WA 993479705 (Tel: 5098431591)

📍

Updated Business Mailing Address August 18, 2017

Registered at 66 N 6TH ST, POMEROY, WA 993479705 (Tel: 5098431591)

👤

Provider Name / Credentials Updated August 18, 2017

Recorded as JOSHUA MAYFIELD, PA-C

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 18, 2017

Physician Assistant (License #PA60055375 in WA)

✅

NPI Profile Active November 26, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location November 26, 2008

Registered at 66 N 6TH ST, POMEROY, WA 993479705 (Tel: 5098431591)

📍

Updated Business Mailing Address November 26, 2008

Registered at 66 N 6TH ST, POMEROY, WA 993479705 (Tel: 5098431591)

👤

Provider Name / Credentials Updated November 26, 2008

Recorded as JOSHUA MAYFIELD, PA-C

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 26, 2008

Emergency Medical Technician, Basic (License #PA60055375 in WA)

🟢

Initial NPI Registration & Enumeration November 26, 2008

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1144475559

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: November 26, 2008

Last Update: June 09, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

66 N 6th St

Pomeroy, WA 993479705

Phone: 5098431591

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.