DR. XIOMARA MICHELLE CASTILLO RIVERA MD
NPI 1740866599
Internal Medicine in Newport, OR

Active since March 22, 2021PECOS EnrolledAccepts Medicare Assignment
36 SW NYE ST, NEWPORT, OR 97365(541) 265-4947 Get Directions Write a Review

NPPES record last updated: February 11, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 16, 2025, Mar 22, 2021 (2 updates tracked since 2021).

About Dr. Xiomara Michelle Castillo Rivera Md NPPES

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

DR. XIOMARA MICHELLE CASTILLO RIVERA MD (NPI 1740866599) is an individual internal medicine provider in Newport, Oregon, licensed in Oregon (MD227151) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, is affiliated with Samaritan North Lincoln Hospital, and is a graduate of Ponce School Of Medicine (2019).

NPPES Registry Identity

NPI1740866599
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. XIOMARA MICHELLE CASTILLO RIVERACredential: MD
Location Address36 SW NYE STNewport, OR 97365-3821
Mailing Address745 W Moana Ln Ste 300Reno, NV 89509-4980 · (775) 327-5471
Sole ProprietorYes
Medical School CMSPonce School Of MedicineGraduated 2019
Enumeration DateMarch 22, 2021
Last NPPES UpdateFebruary 11, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 11, 2026
NPI 1740866599 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in OR · MD227151 Licensed in NV · 26810 Licensed in AZ · 75107
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.
36 SW NYE ST, Newport, OR 97365

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Xiomara Michelle Castillo Rivera Md 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 ID3476942103
PECOS Enrollment IDI20251119002772
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.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Samaritan North Lincoln Hospital

Critical Access Hospitals · Lincoln City, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number381302
Location3043 NE 28th StreetLincoln City, OR 97367 · Lincoln County
Emergency services Birthing friendly

Samaritan Pacific Community Hospital

Critical Access Hospitals · Newport, OR
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number381314
Location930 SW Abbey StreetNewport, OR 97365 · Lincoln County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97365 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
$126.25 typical visit price
range $54.96 – $166.64
Typical copayment $31.56 (range $13.74 – $41.66)
Most-billed visit code 99204
Established Patient
$97.16 typical visit price
range $17.68 – $136.19
Typical copayment $24.29 (range $4.42 – $34.04)
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.

Clinic/Center
36 SW NYE ST
NEWPORT, OR 97365
Counselor (Mental Health)
36 SW NYE ST
NEWPORT, OR 97365
Nurse's Aide
36 SW NYE ST
NEWPORT, OR 97365
Nurse Practitioner (Family)
36 SW NYE ST
NEWPORT, OR 97365
Community Health Worker
36 SW NYE ST
NEWPORT, OR 97365
Family Medicine
36 SW NYE ST
NEWPORT, OR 97365
Counselor (Addiction (Substance Use Disorder))
36 SW NYE ST
NEWPORT, OR 97365
Counselor (Mental Health)
36 SW NYE ST
NEWPORT, OR 97365

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 Xiomara Castillo Rivera's NPI number?

The NPI number for Xiomara Castillo Rivera is 1740866599. It was assigned to this individual provider in the NPPES registry on March 22, 2021.

Where is Xiomara Castillo Rivera located?

Xiomara Castillo Rivera practices at 36 SW Nye St, Newport, OR 97365. The listed phone number is (541) 265-4947.

What is Xiomara Castillo Rivera's specialty?

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

Is Xiomara Castillo Rivera enrolled in Medicare?

Yes. Xiomara Castillo Rivera 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.

Is Xiomara Castillo Rivera affiliated with any hospitals?

According to CMS data, Xiomara Castillo Rivera is affiliated with Samaritan North Lincoln Hospital and Samaritan Pacific Community Hospital.

When was this NPI record last updated?

The NPPES record for Xiomara Castillo Rivera was last updated on February 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.