Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1134756190 Individual Practitioner Female Practitioner

Dr. Tammy Luan , MD

Colon & Rectal Surgery • Seattle, WA

Professional Overview & Biography Verified Profile Summary

Dr. Tammy Luan, MD is a registered healthcare professional specializing in Colon & Rectal Surgery in Seattle, WA. Practice services are available at 1101 MADISON ST STE 510 under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

1101 Madison St Ste 510

Seattle, WA 981043557

Telephone 2063866600
Associated Practice Facility / Clinic
🏢 Dynacare Northwest, Inc Facility NPI 1942504402

Specialty Benchmarks & Practice Insights

Comparative analytics for Colon & Rectal Surgery in Seattle, WA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 19.1 Yrs
State Avg: 20.0 Yrs
Regional Practice Density
18 Specialists

Practicing in Seattle, WA (46 Statewide)

Telehealth Adoption Rate
55.6% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2026-07-31
Colon & Rectal Surgery Primary Specialty

NUCC Taxonomy Code: 208C00000X

State License CA A208483

A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.

Surgery

NUCC Taxonomy Code: 208600000X

State License CA A208483

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Practice Associates & Co-Workers

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

16 Associated Practitioners
Dr. Lindsay Sceats , MD

Colon & Rectal Surgery

NPI 1023405487

Doctor of Medicine (M.D.)

Anna Pagliaro , ARNP

Nurse Practitioner

NPI 1124738430

Advanced Registered Nurse Practitioner

Dr. Joyce Pang , MD

Colon & Rectal Surgery

NPI 1164956959

Doctor of Medicine (M.D.)

Dr. Crystal Koerner , MD

Colon & Rectal Surgery

NPI 1235524703

Doctor of Medicine (M.D.)

NPI 1376103580

Doctor of Medicine (M.D.)

NPI 1417321936

Master of Science in Nursing, Registered Nurse, Family Nurse Practitioner (Board Certified)

Career & Practice History Timeline

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

10 Historical Events
📍
Updated Business Mailing Address July 31, 2026

Registered at 4060 FOURTH AVE STE 510, SAN DIEGO, CA 921032121 (Tel: 6196864011)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 31, 2026

Surgery (License #A208483 in CA)

📍
Updated Practice Location July 15, 2025

Registered at 1101 MADISON ST STE 510, SEATTLE, WA 981043557 (Tel: 2063866600)

📍
Updated Business Mailing Address July 15, 2025

Registered at 1101 MADISON ST STE 510, SEATTLE, WA 981043557 (Tel: 2063866600)

NPI Profile Active March 26, 2020

NPI status registered as active in NPPES database

📍
Updated Practice Location March 26, 2020

Registered at 5301 S CONGRESS AVE, ATLANTIS, FL 334621149 (Tel: 5615481711)

📍
Updated Business Mailing Address March 26, 2020

Registered at 5301 S CONGRESS AVE, ATLANTIS, FL 334621149 (Tel: 4086215095)

👤
Provider Name / Credentials Updated March 26, 2020

Recorded as TAMMY LUAN, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 26, 2020

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration March 26, 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: 1134756190
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 26, 2020
Last Update: July 31, 2026
Sole Proprietor: No

Mailing Address

4060 Fourth Ave Ste 510

San Diego, CA 921032121

Phone: 6196864011

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.