DR. MELVIN H YAMASE (M.D.) – Internal Medicine Physician, NPI 1386672475

DR. MELVIN H YAMASE (M.D.) is a healthcare provider. based in Lake oswego, Oregon. specializing in Internal Medicine Physician. They hold the professional credentials M.D.. They hold a License No. MD15185 (OR). The NPI Number for DR. MELVIN H YAMASE (M.D.) is 1386672475

Main info

Male
40 Years Of Experience
Accepts Medicare Assignment
Name
DR. MELVIN H YAMASE (M.D.)
NPI
1386672475
Phone
(503) 797-2250
Address
6 CENTERPOINTE DRIVE
Enumeration Date
29 June 2006
Last Update Date
15 July 2014

Doctor Profile

Medical School Name
UNIVERSITY OF HAWAII JOHN A. BURNS SCHOOL OF MEDICINE
Secondary Phone
5036441171
Graduation Year
1986 (40 years ago)
PAC ID
3072640077
Group Practice PAC ID
8325941446
Professional Enrollment ID
I20100428000985
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

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Provider Addresses for DR. MELVIN H YAMASE (M.D.)

  • 6, Centerpointe Drive, Westlake, Lake Oswego, Clackamas County, Oregon, 97035, United States

    STE 200

    LAKE OSWEGO, OR 97035

    Phone: (503) 797-2250

    Fax: (503) 914-0335

    Type: Mailing

  • 1185, South Elm Street, Canby, Clackamas County, Oregon, 97013, United States

    CANBY, OR 97013

    Phone: (503) 723-4660

    Fax: (503) 266-6649

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 97035)

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Provider's Procedures

DR. MELVIN H YAMASE (M.D.) performs procedures in Internal Medicine Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
INTERNAL MEDICINEOR83036Hemoglobin A1C level11255
INTERNAL MEDICINEOR85610Blood test, clotting time14817

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8325941446View full group profile
NameSpecialtyState
Family PracticeOR
Nurse PractitionerOR
A L L E R G Y/ I M M U N O L O G YOR
-OR
Family PracticeOR
-OR
-OR
Physician AssistantOR
Family PracticeOR
Nurse PractitionerOR

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Frequently asked questions

Where can patients find DR. MELVIN H YAMASE (M.D.)'s NPI?
You can confirm DR. MELVIN H YAMASE (M.D.) with NPI 1386672475; it appears in the national provider directory.
Is DR. MELVIN H YAMASE (M.D.) currently active in the NPI registry?
CMS-published data lists DR. MELVIN H YAMASE (M.D.) as an active registrant.
What kind of provider is DR. MELVIN H YAMASE (M.D.)?
The page reflects Internal Medicine Physician for DR. MELVIN H YAMASE (M.D.). Clinical services aligned with this taxonomy classification.
What location metadata exists for DR. MELVIN H YAMASE (M.D.)?
The page summarizes Lake Oswego, Oregon for DR. MELVIN H YAMASE (M.D.); expand the address list for detail.
Is this NPI for an individual or an organization?
This listing corresponds to an Individual Provider.

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