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LOUIS HOLMES
NPI 1356781017
Internal Medicine in Clackamas, OR

Active since June 26, 2013PECOS EnrolledAccepts Medicare Assignment
9900 SE SUNNYSIDE RD, CLACKAMAS, OR 97015(503) 652-2880 Get Directions Write a Review

NPPES record last updated: January 12, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jan 12, 2023, Feb 4, 2022 (2 updates tracked since 2022).

About Louis Holmes NPPES

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

LOUIS HOLMES (NPI 1356781017) is an individual internal medicine provider in Clackamas, Oregon, licensed in Oregon (MD190159) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS and is a graduate of Oregon Health Sciences University School Of Medicine (2015).

NPPES Registry Identity

NPI1356781017
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameLOUIS HOLMES
Location Address9900 SE SUNNYSIDE RDClackamas, OR 97015-9777
Mailing Address3181 Sw Sam Jackson Park Rd, OhsuPortland, OR 97239-3011
Phone(503) 652-2880
Sole ProprietorNo
Medical School CMSOregon Health Sciences University School Of MedicineGraduated 2015
Enumeration DateJune 26, 2013
Last NPPES UpdateJanuary 12, 20232 updates tracked since enumeration
NPPES CertifiedJanuary 12, 2023
✔ NPI 1356781017 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in OR · MD190159
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.
9900 SE SUNNYSIDE RD, Clackamas, OR 97015
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Kaiser Permanente.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Louis Holmes is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7113204447
PECOS Enrollment IDI20190104000954
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.

Medicare Billing Reassignment

Medicare enrollment records show Louis Holmes reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Kaiser Foundation Health Plan Of The Northwest
0.2 mi
Sleep Disorder Diagnostic
9717 SE SUNNYSIDE RD, 3RD FLOOR
Clackamas, OR 97015
  • Reassigned Medicare billing, Oregon and Washington enrollments
  • Also billed through NPI 1871848457 (Washington)
  • 3,207 clinicians in this Medicare group
NPI 1174851505 (503) 659-2454

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97015 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.

DR. RONALD LEE LOHMAN MD
Orthopaedic Surgery
9900 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (503) 571-4227
DR. SCOTT KEOLA MIYAKE M.D.
Internal Medicine (Nephrology)
9900 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (800) 813-2000
JO M MARTIN MD
Dermatology
9900 SE SUNNYSIDE RD, NW PERMANENTE PC, PHYSICIANS AND SURGEONS
CLACKAMAS, OR 97015
Clackamas County (503) 571-3332
DALE FOSSATI
Physician Assistant (Medical)
9900 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (503) 571-8240
SARAH COX MSW
Counselor (Mental Health)
9900 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (971) 235-7583
NOEL M LEE MD
Internal Medicine (Gastroenterology)
9900 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (800) 813-2000
MS. BRENDA LOU BUCK RD
Dietitian, Registered
9900 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (503) 571-3764
DR. JEFFERY ZHU HU MD
Dermatology
9900 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (800) 813-2000

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 Louis Holmes's NPI number?

The NPI number for Louis Holmes is 1356781017. It was assigned to this individual provider in the NPPES registry on June 26, 2013.

Where is Louis Holmes located?

Louis Holmes practices at 9900 SE Sunnyside Rd, Clackamas, OR 97015. The listed phone number is (503) 652-2880.

What is Louis Holmes's specialty?

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

Is Louis Holmes enrolled in Medicare?

Yes. Louis Holmes is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Louis Holmes's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Louis Holmes reassigns Medicare benefits to Kaiser Foundation Health Plan Of The Northwest (Clackamas, OR). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Louis Holmes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Louis Holmes accept?

Health plans from Kaiser Permanente list Louis Holmes as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Louis Holmes was last updated on January 12, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.