Active NPI 1962502385 Individual Practitioner Male Practitioner

John James Walker , MPAS, DSC, APA-C

Physician Assistant • Winchester, VA

Professional Overview & Biography Verified Profile Summary

John Walker, MPAS, DSC, APA-C is a registered healthcare professional specializing in Physician Assistant in Winchester, VA. Practice services are available at 1870 AMHERST ST STE C under active NPI credentials.

Frequently performed procedures and clinical services include established patient outpatient office visit, initial hospital care with straightforward or low-level medical decision making, if using time, at least, initial hospital inpatient care per day. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1870 Amherst St Ste C

Winchester, VA 226012841

Telephone 5405360153

Associated Practice Facility / Clinic

🏢 Winchester Medical Center Facility NPI 1679369482

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Winchester, VA

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 8.9 Yrs

State Avg: 10.5 Yrs

Regional Practice Density

217 Specialists

Practicing in Winchester, VA (4432 Statewide)

Telehealth Adoption Rate

10.6% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

71.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

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
99213 Established patient office or other outpatient visit, typically 15 minutes	75	65	$244.00	$75.09
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	41	41	$367.00	$103.46
99221 Initial hospital inpatient care per day, typically 30 minutes	28	28	$273.00	$67.00
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	15	15	$438.40	$137.83

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	75	66	$351.12	$106.86
99221 Initial hospital inpatient care per day, typically 30 minutes	47	47	$273.00	$69.93
99213 Established patient office or other outpatient visit, typically 15 minutes	40	35	$241.00	$76.32
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$412.36	$129.50

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	40	38	$323.23	$109.99
99221 Initial hospital inpatient care per day, typically 30 minutes	35	34	$248.74	$85.17
99213 Established patient office or other outpatient visit, typically 15 minutes	28	27	$201.18	$77.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	69	53	$148.94	$78.82
99221 Initial hospital inpatient care per day, typically 30 minutes	45	44	$204.00	$84.51
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	35	29	$227.89	$112.08

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	103	91	$148.73	$64.90
99221 Initial hospital inpatient care per day, typically 30 minutes	42	42	$204.00	$87.05
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	24	24	$216.33	$93.10
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	22	20	$217.73	$94.95
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$146.80	$65.72

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	46	43	$143.19	$63.30
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	24	24	$212.35	$90.46
99221 Initial hospital inpatient care per day, typically 30 minutes	19	18	$194.12	$83.37
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	18	$211.86	$93.48

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	20	20	$145.00	$64.09
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	17	$212.00	$94.90
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$213.00	$95.62

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	29	28	$212.00	$89.59
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	16	16	$213.00	$98.25
36415 Insertion of needle into vein for collection of blood sample	13	13	$9.31	$2.77

Medical Specialties & State Licenses

CMS Verified: 2024-04-24

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License VA 0110005462

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.

Practice Associates & Co-Workers

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

5 Associated Practitioners

Brooklyn Williamson

Nurse Practitioner

NPI 1205622354

Dr. Tariq Nayfeh , MD

Orthopaedic Surgery

NPI 1215988217

Doctor of Medicine (M.D.)

Bailey O'bannon

Physician Assistant - Medical

NPI 1396126330

Richard Gilbert , PA-C

Physician Assistant - Medical

NPI 1659677458

Physician Assistant (Certified)

Dr. Andrew Brown , MD

Orthopaedic Surgery

NPI 1679777478

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

12 Historical Events

📍

Updated Business Mailing Address April 24, 2024

Registered at 220 CAMPUS BLVD STE 210, WINCHESTER, VA 226012889 (Tel: 5405365100)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) April 24, 2024

Physician Assistant (License #0110005462 in VA)

📍

Updated Practice Location July 10, 2019

Registered at 1870 AMHERST ST STE C, WINCHESTER, VA 226012841 (Tel: 5405360153)

📍

Updated Business Mailing Address July 10, 2019

Registered at 220 CAMPUS BLVD STE 100, WINCHESTER, VA 226012888 (Tel: 5405365100)

📍

Updated Practice Location March 22, 2018

Registered at 3918 CENTREVILLE RD, CHANTILLY, VA 201513224 (Tel: 7036576925)

📍

Updated Business Mailing Address March 22, 2018

Registered at 5000 COX RD, GLEN ALLEN, VA 230609263 (Tel: 8049685700)

✅

NPI Profile Active August 09, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location August 09, 2016

Registered at 5000 COX RD, GLEN ALLEN, VA 230609263 (Tel: 7855642820)

📍

Updated Business Mailing Address August 09, 2016

Registered at 24149 STATESBORO PL, ASHBURN, VA 201481775 (Tel: 7855642820)

👤

Provider Name / Credentials Updated August 09, 2016

Recorded as JOHN WALKER, MPAS, DSC, APA-C

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 09, 2016

Physician Assistant (License #0110005462 in VA)

🟢

Initial NPI Registration & Enumeration September 25, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for John Walker. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1962502385

Entity Type:

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

Enumeration Date: September 25, 2006

Last Update: April 24, 2024

Sole Proprietor: No

Update or Correct Profile

Mailing Address

220 Campus Blvd Ste 210

Winchester, VA 226012889

Phone: 5405365100

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.