Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SAINT ALPHONSUS MEDICAL CENTER- ONTARIO INC
NPI 1629397781
Internal Medicine in Ontario, OR

Active since May 27, 2010
351 SW 9TH ST, ONTARIO, OR 97914(541) 881-7000(541) 881-7186 Get Directions Write a Review

NPPES record last updated: September 8, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 8, 2026, Jun 16, 2025, Jan 24, 2023 and 3 more (6 updates tracked since 2018).

About Saint Alphonsus Medical Center- Ontario Inc NPPES

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

SAINT ALPHONSUS MEDICAL CENTER- ONTARIO INC (NPI 1629397781) is a healthcare organization registered as an internal medicine in Ontario, Oregon and active in the NPI registry since May 2010. The organization lists Marcie Harper, Cfo, as its authorized official.

NPPES Registry Identity

NPI1629397781
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameSAINT ALPHONSUS MEDICAL CENTER- ONTARIO INC
Location Address351 SW 9TH STOntario, OR 97914-2639
Mailing Address351 Sw 9th StOntario, OR 97914-2639 · (541) 881-7000 · Fax (541) 881-7186
Fax(541) 881-7186
Organization SubpartNo
Authorized OfficialMarcie HarperCfo · (208) 367-7192
Enumeration DateMay 27, 2010
Last NPPES UpdateSeptember 8, 20266 updates tracked since enumeration
NPPES CertifiedSeptember 8, 2026
✔ NPI 1629397781 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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 ListedRadiology · Diagnostic RadiologyTaxonomy 2085R0202X
351 SW 9TH ST, Ontario, OR 97914

Other Identifiers 3

Medicaid134311OR
Medicaid003346600ID
Medicaid805333100ID

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Saint Alphonsus Medical Center- Ontario Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

49

Medicare enrollment records show 49 clinicians reassign Medicare billing to Saint Alphonsus Medical Center- Ontario Inc, which bills Medicare for the services they deliver. Of these, 4 practice at this address and 20 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 13

Nurse Practitioner11
Obstetrics/Gynecology9
General Surgery7
Pediatric Medicine6
Family Practice4
Orthopedic Surgery3
Emergency Medicine2
Podiatry2
5 other specialties5

Nearest to this location (20)

See all 49
Pathology
NPI 1659319549
351 SW 9TH ST
Ontario, OR 97914
(541) 881-5331
✔ PECOSSame address
Obstetrics/Gynecology
NPI 1124001862
1050 SW 3RD AVE STE 3200
Ontario, OR 97914
(541) 881-2325
✔ PECOS✔ Accepts MedicareSame address
Otolaryngology
NPI 1538144225
1050 SW 3RD AVE STE 1200
Ontario, OR 97914
(541) 881-7451
✔ PECOS✔ Accepts MedicareSame address
General Surgery
NPI 1801892104
1050 SW 3RD AVE STE 2600
Ontario, OR 97914
(541) 881-2330
✔ PECOS✔ Accepts MedicareSame address
Family Practice
NPI 1235198995
1077 SW 3RD AVE
Ontario, OR 97914
(541) 889-0771
✔ PECOS✔ Accepts Medicare0.1 mi
General Surgery
NPI 1437240009
351 SW 9TH ST
Ontario, OR 97914
(541) 881-7184
✔ PECOS✔ Accepts Medicare0.1 mi
Obstetrics/Gynecology
NPI 1639328412
351 SW 9TH ST
Ontario, OR 97914
(541) 881-7184
✔ PECOS✔ Accepts Medicare0.1 mi
Family Practice
NPI 1295718096
1050 SW 3RD AVE STE 2600
Ontario, OR 97914
(208) 302-2080
✔ PECOS✔ Accepts Medicare0.1 mi
General Surgery
NPI 1508083635
1050 SW 3RD AVE STE 2600
Ontario, OR 97914
(541) 881-2330
✔ PECOS✔ Accepts Medicare0.1 mi
Nurse Practitioner
NPI 1477015378
1050 SW 3RD AVE STE 2600
Ontario, OR 97914
(208) 302-2080
✔ PECOS✔ Accepts Medicare0.1 mi
Nurse Practitioner
NPI 1346767563
1050 SW 3RD AVE STE 1800
Ontario, OR 97914
(208) 302-0000
✔ PECOS✔ Accepts Medicare0.1 mi
Obstetrics/Gynecology
NPI 1316064512
1050 SW 3RD AVE STE 3200
Ontario, OR 97914
(541) 881-2325
✔ PECOS✔ Accepts Medicare0.1 mi
General Surgery
NPI 1831713924
1050 SW 3RD AVE STE 3201
Ontario, OR 97914
(541) 881-2330
✔ PECOS✔ Accepts Medicare0.1 mi
Orthopedic Surgery
NPI 1922041961
910 NW 16TH ST STE 205
Fruitland, ID 83619
(208) 452-8100
✔ PECOS✔ Accepts Medicare2.6 mi
Podiatry
NPI 1508387028
910 NW 16TH ST STE 102
Fruitland, ID 83619
(208) 452-8150
✔ PECOS✔ Accepts Medicare2.6 mi
Internal Medicine
NPI 1699883447
910 NW 16TH ST STE 102
Fruitland, ID 83619
(208) 452-8015
✔ PECOS✔ Accepts Medicare2.6 mi
Orthopedic Surgery
NPI 1811383524
910 NW 16TH ST STE 205
Fruitland, ID 83619
(208) 452-8100
✔ PECOS✔ Accepts Medicare2.6 mi
Orthopedic Surgery
NPI 1154310597
910 NW 16TH STREET STE 205
Fruitland, ID 83619
(208) 452-3111
✔ PECOS✔ Accepts Medicare2.6 mi
Nurse Practitioner
NPI 1982174199
910 NW 16TH ST STE 101
Fruitland, ID 83619
(208) 452-8000
✔ PECOS✔ Accepts Medicare2.6 mi
Family Practice
NPI 1780078857
910 NW 16TH SUITE 101
Fruitland, ID 83619
(208) 452-8000
✔ PECOS✔ Accepts Medicare2.6 mi
See all 49 clinicians

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

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 Saint Alphonsus Medical Center- Ontario Inc's NPI number?

The NPI number for Saint Alphonsus Medical Center- Ontario Inc is 1629397781. It was assigned to this organization in the NPPES registry on May 27, 2010.

Where is Saint Alphonsus Medical Center- Ontario Inc located?

Saint Alphonsus Medical Center- Ontario Inc is located at 351 SW 9th St, Ontario, OR 97914. The listed phone number is (541) 881-7000.

What is Saint Alphonsus Medical Center- Ontario Inc's specialty?

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

Is Saint Alphonsus Medical Center- Ontario Inc enrolled in Medicare?

Yes. Saint Alphonsus Medical Center- Ontario Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Saint Alphonsus Medical Center- Ontario Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 49 clinicians in 13 Medicare specialties reassign their Medicare billing to Saint Alphonsus Medical Center- Ontario Inc. A 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 the clinician's services. The largest specialties are Nurse Practitioner (11), Obstetrics/Gynecology (9) and General Surgery (7). Of these, 4 practice at this address and 20 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Saint Alphonsus Medical Center- Ontario Inc accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., Molina Healthcare and Regence BlueCross BlueShield of Oregon list Saint Alphonsus Medical Center- Ontario Inc 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 Saint Alphonsus Medical Center- Ontario Inc was last updated on September 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 47 days 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.