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NAOMI TSAI MD
NPI 1194667048
Internal Medicine in Portland, OR

Active since April 08, 2026PECOS Enrolled
5050 NE HOYT ST STE 540, PORTLAND, OR 97213(503) 215-6600 Get Directions Write a Review

NPPES record last updated: May 27, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 27, 2026, Apr 8, 2026 (2 updates tracked since 2026).

About Naomi Tsai Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NAOMI TSAI MD (NPI 1194667048) is an individual internal medicine provider in Portland, Oregon, licensed in Oregon (PG230106) and active in the NPI registry since April 2026. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1194667048
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameNAOMI TSAICredential: MD
Location Address5050 NE HOYT ST STE 540Portland, OR 97213-2985
Mailing Address5050 Ne Hoyt St Ste 540Portland, OR 97213-2985
Phone(503) 215-6600
Sole ProprietorNo
Enumeration DateApril 8, 2026
Last NPPES UpdateMay 27, 20262 updates tracked since enumeration
NPPES CertifiedMay 27, 2026
✔ NPI 1194667048 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in OR · PG230106
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
5050 NE HOYT ST STE 540, Portland, OR 97213
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Naomi Tsai Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97213 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$134.16 typical visit price
range $58.99 – $176.88
Typical copayment $33.54 (range $14.74 – $44.22)
Most-billed visit code 99204
Established Patient
$103.51 typical visit price
range $19.32 – $144.79
Typical copayment $25.87 (range $4.83 – $36.19)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHRISTOPHER M BENDER MD
Internal Medicine
5050 NE HOYT ST STE 540
PORTLAND, OR 97213
Multnomah County (503) 215-6600
KATHERINE M ERICKSON MD
Student in an Organized Health Care Education/Training Program
5050 NE HOYT ST STE 540
PORTLAND, OR 97213
Multnomah County (503) 215-6600
CYMON N KERSCH MD
Radiology (Radiation Oncology)
5050 NE HOYT ST STE 540
PORTLAND, OR 97213
Multnomah County (503) 215-6600
SHARON BOKYONG KIM M.D.
Internal Medicine
5050 NE HOYT ST STE 540
PORTLAND, OR 97213
Multnomah County (503) 215-6600
JOHN E RISING MD
Internal Medicine
5050 NE HOYT ST STE 540
PORTLAND, OR 97213
Multnomah County (503) 215-6600
ALEXANDER A HARTZELL MD
Internal Medicine
5050 NE HOYT ST STE 540
PORTLAND, OR 97213
Multnomah County (503) 215-6600
GAGE M LEMUNYAN MD
Student in an Organized Health Care Education/Training Program
5050 NE HOYT ST STE 540
PORTLAND, OR 97213
Multnomah County (503) 215-6600
JOHN JAMES HILDENBRAND
Internal Medicine
5050 NE HOYT ST STE 540
PORTLAND, OR 97213
Multnomah County (503) 215-6600

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Naomi Tsai's NPI number?

The NPI number for Naomi Tsai is 1194667048. It was assigned to this individual provider in the NPPES registry on April 8, 2026.

Where is Naomi Tsai located?

Naomi Tsai practices at 5050 NE Hoyt St Ste 540, Portland, OR 97213. The listed phone number is (503) 215-6600.

What is Naomi Tsai's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Naomi Tsai enrolled in Medicare?

Yes. Naomi Tsai is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Naomi Tsai was last updated on May 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.