Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1205396397 Individual Practitioner Female Practitioner

Dr. Tamar Virtelle Lan Walker , MD, MBA

Surgery • Portland, OR

Professional Overview & Biography Verified Profile Summary

Dr. Tamar Walker, MD, MBA is a certified Surgery practicing in Portland, OR. With approximately 7 years of clinical experience since graduating from University Of Southern California Keck School Of Medicine in 2019, Dr. Walker delivers high-quality medical care to the local community at 3303 S BOND AVE.

Dr. Walker does not directly accept Medicare assignment.

Practice Location & Contact Primary Location

Practice Address

3303 S Bond Ave

Portland, OR 972394501

Telephone 5034944373
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

University Of Southern California Keck School Of Medicine

Graduation Year

2019

Medicare Assignment

Not Specified

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Portland, OR

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
7 Yrs -13.9 yrs vs City Avg
City Avg: 20.9 Yrs
State Avg: 23.3 Yrs
Regional Practice Density
177 Specialists

Practicing in Portland, OR (555 Statewide)

Telehealth Adoption Rate
23.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Walker (7 Years) 7 Yrs
Portland Specialty Average (20.9 Years) 20.9 Yrs

Medical Specialties & State Licenses

CMS Verified: 2025-07-22
Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License OR MD219471

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.

Surgery

NUCC Taxonomy Code: 208600000X

State License DC MD600004247

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.

Secondary Practice Locations

1200 Pecan St Se

Washington, DC 200322652

Phone: 7714446200

Practice Associates & Co-Workers

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

40 Associated Practitioners
Dr. Atif Zaman , MD

Internal Medicine - Gastroenterology

NPI 1003821513

Doctor of Medicine (M.D.)

Dr. Fouad Otaki , MD

Internal Medicine - Gastroenterology

NPI 1013229996

Doctor of Medicine (M.D.)

Eryn Mckim , RN

Registered Nurse - Ambulatory Care

NPI 1023557238

Registered Nurse

Julie Larson , RN-BSN

Registered Nurse - Ambulatory Care

NPI 1023557477

RNBSN

Armando Armenta

Nurse Practitioner - Family

NPI 1033783675
NPI 1053518944

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

10 Historical Events
📍
Updated Business Mailing Address July 22, 2025

Registered at 1400 SW 5TH AVE STE 500, PORTLAND, OR 972015537

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 22, 2025

Surgery (License #MD600004247 in DC)

📍
Updated Practice Location April 02, 2025

Registered at 3303 S BOND AVE, PORTLAND, OR 972394501 (Tel: 5034944373)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 02, 2025

Surgery (License #MD219471 in OR)

NPI Profile Active March 23, 2019

NPI status registered as active in NPPES database

📍
Updated Practice Location March 23, 2019

Registered at 5301 SOUTH CONGRESS AVENUE, 3 SOUTH, ATLANTIS, FL 33462 (Tel: 5615481711)

📍
Updated Business Mailing Address March 23, 2019

Registered at 5301 SOUTH CONGRESS AVENUE, 3 SOUTH, ATLANTIS, FL 33462 (Tel: 5615481711)

👤
Provider Name / Credentials Updated March 23, 2019

Recorded as TAMAR WALKER, MD, MBA

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 23, 2019

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration March 23, 2019

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: 1205396397
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 23, 2019
Last Update: July 22, 2025
Sole Proprietor: No

Mailing Address

1400 Sw 5th Ave Ste 500

Portland, OR 972015537

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.