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OLIVER NEIL REFUGIO M.D., M.P.H.
NPI 1144727355
Internal Medicine in Sylmar, CA

Active since April 12, 2018PECOS EnrolledAccepts Medicare Assignment
14445 OLIVE VIEW DR, SYLMAR, CA 91342(747) 210-3000 Get Directions Write a Review

NPPES record last updated: October 7, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 7, 2020, May 3, 2018, Apr 12, 2018 (3 updates tracked since 2018).

About Oliver Neil Refugio M.d., M.p.h. NPPES

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

OLIVER NEIL REFUGIO M.D., M.P.H. (NPI 1144727355) is an individual internal medicine provider in Sylmar, California, licensed in California (A166041) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS, maintains a secondary practice location in Anaheim, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1144727355
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameOLIVER NEIL REFUGIOCredential: M.D., M.P.H.
Location Address14445 OLIVE VIEW DRSylmar, CA 91342-1437
Mailing Address14445 Olive View DrSylmar, CA 91342-1437
Phone(747) 210-3000
Sole ProprietorYes
Medical School CMSOtherGraduated 2018
Enumeration DateApril 12, 2018
Last NPPES UpdateOctober 7, 20203 updates tracked since enumeration
NPPES CertifiedOctober 7, 2020
✔ NPI 1144727355 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A166041
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.
14445 OLIVE VIEW DR, Sylmar, CA 91342
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Secondary Practice Location 1

Location 11138 N Voyager LnAnaheim, CA 92801-1735 · Phone (562) 881-1316

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

Oliver Neil Refugio M.d., M.p.h. 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 ID9537542246
PECOS Enrollment IDI20220812002087
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 Reassignments

2

Medicare enrollment records show Oliver Neil Refugio reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

County Of Los Angeles Auditor Controller
0.2 mi
General Acute Care Hospital
14445 OLIVE VIEW DR
Sylmar, CA 91342
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: County Of Los Angeles
  • 1,939 clinicians in this Medicare group
NPI 1134159320 (818) 364-3031
Bartz-Altadonna Community Health Center
30 mi
Federally Qualified Health Center (FQHC)
43322 GINGHAM AVE
Lancaster, CA 93535
  • Reassigned Medicare billing, California enrollment
  • 70 clinicians in this Medicare group
NPI 1811279763 (661) 874-4050

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 91342 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

COUNTY OF LOS ANGELES AUDITOR CONTROLLER
General Acute Care Hospital
14445 OLIVE VIEW DR
SYLMAR, CA 91342
Los Angeles County (818) 364-1555
DENNIS POON
Nurse Practitioner (Family)
14445 OLIVE VIEW DR
SYLMAR, CA 91342
Los Angeles County (747) 210-3000
SERENA KE MD
Student in an Organized Health Care Education/Training Program
14445 OLIVE VIEW DR
SYLMAR, CA 91342
Los Angeles County (747) 210-3205
DR. PAUL I LIU M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
14445 OLIVE VIEW DR, ROOM 1A116
SYLMAR, CA 91342
Los Angeles County (818) 364-4033
DR. ARTHUR JENG M.D.
Internal Medicine (Infectious Disease)
14445 OLIVE VIEW DR, 2B182
SYLMAR, CA 91342
Los Angeles County (818) 364-3205
MRS. CECILIA CORONADO PTA
Physical Therapy Assistant
14445 OLIVE VIEW DR
SYLMAR, CA 91342
Los Angeles County (747) 210-4245
COUNTY OF LOS ANGELES AUDITOR CONTROLLER
General Acute Care Hospital
14445 OLIVE VIEW DR
SYLMAR, CA 91342
Los Angeles County (818) 364-1555
MR. ANDRIY A KUZNETSOV PT
Physical Therapist
14445 OLIVE VIEW DR
SYLMAR, CA 91342
Los Angeles County (818) 364-4245

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 Oliver Neil Refugio's NPI number?

The NPI number for Oliver Neil Refugio is 1144727355. It was assigned to this individual provider in the NPPES registry on April 12, 2018.

Where is Oliver Neil Refugio located?

Oliver Neil Refugio practices at 14445 Olive View Dr, Sylmar, CA 91342. The listed phone number is (747) 210-3000.

What is Oliver Neil Refugio's specialty?

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

Is Oliver Neil Refugio enrolled in Medicare?

Yes. Oliver Neil Refugio 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 organizations bill Medicare for Oliver Neil Refugio's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Oliver Neil Refugio reassigns Medicare benefits to 2 organizations: County Of Los Angeles Auditor Controller (Sylmar, CA) and Bartz-Altadonna Community Health Center (Lancaster, CA). Each 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 Oliver Neil Refugio's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Oliver Neil Refugio was last updated on October 7, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.