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Active NPI 1154915338 Individual Practitioner Male Practitioner

Joel Masami Oyama , FNP-C

Nurse Practitioner - Family • Gresham, OR

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Joel Oyama, FNP-C is a certified Nurse Practitioner - Family practicing in Gresham, OR. With approximately 6 years of clinical experience since completing medical education in 2020, Joel Oyama delivers high-quality medical care to the local community at 440 NW DIVISION ST.

Joel Oyama maintains professional affiliations with Legacy Clinics Llc, Silverton Health and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

440 Nw Division St

Gresham, OR 970305506

Telephone 5032159500
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

Other

Graduation Year

2020

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Nurse Practitioner - Family in Gresham, OR

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
6 Yrs -3.0 yrs vs City Avg
City Avg: 9.0 Yrs
State Avg: 11.2 Yrs
Regional Practice Density
42 Specialists

Practicing in Gresham, OR (2410 Statewide)

Telehealth Adoption Rate
14.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
63.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Oyama (6 Years) 6 Yrs
Gresham Specialty Average (9.0 Years) 9.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
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
26 23 $222.00 $84.12
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
26 23 $44.00 $14.30

Medical Specialties & State Licenses

CMS Verified: 2026-07-07
Nurse Practitioner - Family Primary Specialty

NUCC Taxonomy Code: 363LF0000X

State License OR 202101694NP-PP

Definition to come...

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
500790037 (OR)

Hospital & Practice Group Affiliations

Silverton Health

1475 Mount Hood Ave, Woodburn, OR 970719199

Phone: 5038738853

Legacy Clinics Llc

25050 Se Stark St, Gresham, OR 970303383

Phone: 5036741848

Legacy Clinics Llc

1130 Nw 22nd Ave, Portland, OR 972102969

Phone: 5034138988

Legacy Clinics Llc

25050 Se Stark St, Gresham, OR 970303383

Phone: 5036741520

Silverton Health

1475 Mount Hood Ave, Woodburn, OR 970719066

Phone: 5039822174

Silverton Health

1475 Mount Hood Ave, Woodburn, OR 970719263

Practice Associates & Co-Workers

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

20 Associated Practitioners
Katie Ketterling-Thornburg , APRN, FNP-C

Nurse Practitioner - Family

NPI 1114489093

Advanced Practice Registered Nurse, Family Nurse Practitioner (Certified)

Laura Vasquez Sanchez

Registered Nurse - Ambulatory Care

NPI 1114875861
Robert Mayer , AGPCNP

Nurse Practitioner - Gerontology

NPI 1154753457
Amanda Hinojosa , RD

Dietitian, Registered

NPI 1285283358

Registered Dietitian

Dr. Robert Bailey , MD

Internal Medicine

NPI 1346288123

Doctor of Medicine (M.D.)

Erika Larson , QMHP-R

Counselor - Mental Health

NPI 1427778026

QMHPR

Career & Practice History Timeline

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

10 Historical Events
📍
Updated Practice Location July 07, 2026

Registered at 440 NW DIVISION ST, GRESHAM, OR 970305506 (Tel: 5032159500)

📍
Updated Business Mailing Address July 07, 2026

Registered at 440 NW DIVISION ST, GRESHAM, OR 970305506

📍
Updated Practice Location January 14, 2026

Registered at 25050 SE STARK ST, MOB 4, SUITE 265, GRESHAM, OR 97030 (Tel: 5036741520)

📍
Updated Business Mailing Address April 07, 2021

Registered at PO BOX 3417, PORTLAND, OR 972083417

NPI Profile Active February 27, 2021

NPI status registered as active in NPPES database

📍
Updated Practice Location February 27, 2021

Registered at 347 FAIRVIEW ST, SILVERTON, OR 973811916 (Tel: 5038735667)

📍
Updated Business Mailing Address February 27, 2021

Registered at 661 SE ACACIA LN, GRESHAM, OR 970802015 (Tel: 5037012224)

👤
Provider Name / Credentials Updated February 27, 2021

Recorded as JOEL OYAMA, FNP-C

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 27, 2021

Nurse Practitioner (License #202101694NP-PP in OR)

🟢
Initial NPI Registration & Enumeration February 27, 2021

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: 1154915338
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: February 27, 2021
Last Update: July 07, 2026
Sole Proprietor: No

Mailing Address

440 Nw Division St

Gresham, OR 970305506

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.