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Active NPI 1437785268 Individual Practitioner Male Practitioner

Derek F Andrzejewski , PA-C

Physician Assistant - Medical • Seattle, WA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Derek Andrzejewski, PA-C is a certified Physician Assistant - Medical practicing in Seattle, WA. With approximately 7 years of clinical experience since completing medical education in 2019, Derek Andrzejewski delivers high-quality medical care to the local community at 201 16TH AVE E.

Derek Andrzejewski is affiliated with Allergy Care Center A Medical Corporation and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, new patient outpatient office visit, x-ray of knee. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

201 16th Ave E

Seattle, WA 981125226

Telephone 2063263000
Fax 8775152975
Associated Practice Facility / Clinic
🏢 Central Hosp Group Hlth Facility NPI 1336251248

Medicare Profile & Education

Medical School

Other

Graduation Year

2019

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant - Medical in Seattle, WA

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
7 Yrs -7.8 yrs vs City Avg
City Avg: 14.8 Yrs
State Avg: 15.4 Yrs
Regional Practice Density
163 Specialists

Practicing in Seattle, WA (1096 Statewide)

Telehealth Adoption Rate
12.9% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
55.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Andrzejewski (7 Years) 7 Yrs
Seattle Specialty Average (14.8 Years) 14.8 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2022)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes
13 13 $189.00 $84.47

Medical Specialties & State Licenses

CMS Verified: 2026-03-16
Physician Assistant - Medical Primary Specialty

NUCC Taxonomy Code: 363AM0700X

State License WA PA70082059

Definition to come...

Physician Assistant - Medical

NUCC Taxonomy Code: 363AM0700X

State License CA PA57779

Definition to come...

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID State License
57779 (CA)

Hospital & Practice Group Affiliations

Allergy Care Center A Medical Corporation

2412 N Ponderosa Dr, Camarillo, CA 930102379

Phone: 8054828989

Allergy Care Center A Medical Corporation

430 E Avenida De Los Arboles, Thousand Oaks, CA 913603017

Phone: 8054931537

Secondary Practice Locations

2412 N Ponderosa Dr Ste B111

Camarillo, CA 930102379

Phone: 8054828989

2525 Erringer Rd

Simi Valley, CA 930652352

Phone: 8055271404

Practice Associates & Co-Workers

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

40 Associated Practitioners
Dr. Jaime Michaelson , MD

Obstetrics & Gynecology - Obstetrics

NPI 1003013426

Doctor of Medicine (M.D.)

Dr. Vivian Yu , MD

Obstetrics & Gynecology

NPI 1003348723

Doctor of Medicine (M.D.)

Dr. Andrew Feld , MD

Internal Medicine - Gastroenterology

NPI 1003818709

Doctor of Medicine (M.D.)

Dr. Michael Nevins , MD

Internal Medicine - Pulmonary Disease

NPI 1003969270

Doctor of Medicine (M.D.)

Carolyn Berg , LW

Social Worker

NPI 1013042076
Dr. Michael Cho , MD

Internal Medicine - Rheumatology

NPI 1013116722

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

9 Historical Events
📍
Updated Practice Location March 16, 2026

Registered at 201 16TH AVE E, SEATTLE, WA 981125226 (Tel: 2063263000)

📍
Updated Business Mailing Address March 16, 2026

Registered at 201 16TH AVE E, SEATTLE, WA 981125226 (Tel: 2063263000)

👤
Provider Name / Credentials Updated May 14, 2020

Recorded as DEREK ANDRZEJEWSKI, PA-C

NPI Profile Active March 12, 2020

NPI status registered as active in NPPES database

📍
Updated Practice Location March 12, 2020

Registered at 2412 N PONDEROSA DR STE B111, CAMARILLO, CA 930102379 (Tel: 8054828989)

📍
Updated Business Mailing Address March 12, 2020

Registered at 2412 N PONDEROSA DR STE B111, CAMARILLO, CA 930102379 (Tel: 8054828989)

👤
Provider Name / Credentials Updated March 12, 2020

Recorded as DEREK ANDRZEJEWSKI, PA

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 12, 2020

Physician Assistant (License #PA57779 in CA)

🟢
Initial NPI Registration & Enumeration March 12, 2020

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: 1437785268
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 12, 2020
Last Update: March 16, 2026
Sole Proprietor: No

Mailing Address

201 16th Ave E

Seattle, WA 981125226

Phone: 2063263000

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.