Active NPI 1063765741 Individual Practitioner Female Practitioner

Margaret Ann Walker , PA-C

Physician Assistant • Seattle, WA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Margaret Walker, PA-C is a certified Physician Assistant practicing in Seattle, WA. With approximately 15 years of clinical experience since completing medical education in 2011, Margaret Walker delivers high-quality medical care to the local community at 1550 N 115TH ST.

Margaret Walker is affiliated with The Association Of University Physicians and accepts Medicare assignment.

Frequently performed procedures and clinical services include 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, initial hospital care with moderate level of 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

1550 N 115th St

Seattle, WA 981338401

Telephone 2065205000

Associated Practice Facility / Clinic

🏢 Northwest Anesthesiologists, Ps Facility NPI 1932157625

Medicare Profile & Education

Medical School

Other

Graduation Year

2011

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Seattle, WA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

15 Yrs +4.7 yrs vs City Avg

City Avg: 10.3 Yrs

State Avg: 12.1 Yrs

Regional Practice Density

833 Specialists

Practicing in Seattle, WA (3774 Statewide)

Telehealth Adoption Rate

18.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

71.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Walker (15 Years) 15 Yrs

Seattle Specialty Average (10.3 Years) 10.3 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
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	185	103	$243.78	$69.31
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	61	59	$401.24	$114.84
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	51	44	$534.68	$154.43
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	22	19	$369.25	$102.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	186	101	$219.36	$71.14
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	84	80	$391.71	$116.89
99231 Follow-up hospital inpatient care per day, typically 15 minutes	35	31	$135.82	$44.42
99221 Initial hospital inpatient care per day, typically 30 minutes	17	17	$283.92	$74.40
99284 Emergency department visit with moderate level of medical decision making	17	17	$510.77	$106.42

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	172	90	$201.80	$64.00
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	59	56	$380.87	$121.38
99221 Initial hospital inpatient care per day, typically 30 minutes	27	24	$284.47	$89.79
99231 Follow-up hospital inpatient care per day, typically 15 minutes	24	18	$109.87	$34.54

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	79	57	$195.54	$65.20
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	51	50	$349.62	$123.28

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	101	73	$192.00	$66.15
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	52	52	$339.00	$125.88

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	189	124	$190.00	$64.25
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	93	91	$331.00	$124.16

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	131	88	$176.00	$65.46
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	91	90	$326.00	$122.89
99231 Follow-up hospital inpatient care per day, typically 15 minutes	84	79	$98.00	$35.21

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	153	101	$170.00	$63.26
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	99	83	$290.00	$90.36
36415 Insertion of needle into vein for collection of blood sample	86	57	$8.00	$2.94
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	84	83	$315.00	$120.49
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	68	48	$29.00	$10.45
80053 Blood test, comprehensive group of blood chemicals	62	45	$39.00	$11.26
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	46	46	$447.09	$136.02
85610 Blood test, clotting time	32	27	$15.00	$5.28
99213 Established patient office or other outpatient visit, typically 15 minutes	26	26	$197.00	$61.97
99231 Follow-up hospital inpatient care per day, typically 15 minutes	15	15	$95.00	$34.72

Medical Specialties & State Licenses

CMS Verified: 2021-08-02

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License WA PA60267720

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.

Physician Assistant - Medical

NUCC Taxonomy Code: 363AM0700X

State License WA PA60267720

Definition to come...

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

1063765741 (WA)

Hospital & Practice Group Affiliations

The Association Of University Physicians

1550 N 115th St, Seattle, WA 981338401

Phone: 2063640500

The Association Of University Physicians

1701 Columbia Rd, Seattle, WA 981950001

Phone: 2065983100

The Association Of University Physicians

1959 Ne Pacific St, Seattle, WA 981950001

Phone: 2065984333

The Association Of University Physicians

1570 N 115th St, Seattle, WA 981338401

Phone: 2063062800

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Sandhya Panch , MD

Internal Medicine - Hematology

NPI 1003043415

Doctor of Medicine (M.D.)

Hilary King , MA, RC

Counselor - Mental Health

NPI 1003068735

Master of Arts, RC

Dr. Afshin Shameli , MD, PhD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1003104357

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Dr. Timothy Menza , MD, PhD

Internal Medicine - Infectious Disease

NPI 1003105891

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Dr. Maria Corcorran , MD

Internal Medicine

NPI 1003159013

Doctor of Medicine (M.D.)

Dr. Justin Miller , PhD

Psychologist - Clinical

NPI 1003162314

Doctor of Philosophy (Ph.D.)

Career & Practice History Timeline

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

9 Historical Events

📍

Updated Practice Location August 02, 2021

Registered at 1550 N 115TH ST, SEATTLE, WA 981338401 (Tel: 2065205000)

📍

Updated Business Mailing Address August 02, 2021

Registered at PO BOX 50095, SEATTLE, WA 981455095 (Tel: 2065205700)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 02, 2021

Physician Assistant (License #PA60267720 in WA)

✅

NPI Profile Active June 02, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location June 02, 2015

Registered at 1624 S I ST, SUITE 305, TACOMA, WA 984055016 (Tel: 2534288700)

📍

Updated Business Mailing Address June 02, 2015

Registered at 2920 S MERIDIAN, SUITE 100, PUYALLUP, WA 983731428 (Tel: 2538414296)

👤

Provider Name / Credentials Updated June 02, 2015

Recorded as MARGARET WALKER, PA-C

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 02, 2015

Physician Assistant (License #PA60267720 in WA)

🟢

Initial NPI Registration & Enumeration October 18, 2012

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: 1063765741

Entity Type:

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

Enumeration Date: October 18, 2012

Last Update: August 02, 2021

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 50095

Seattle, WA 981455095

Phone: 2065205700

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.