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MARILOU ORPILLA OSTREA MD
NPI 1427347590
Pediatrics in Turlock, CA

Active since March 29, 2011PECOS Enrolled
3100 WEST CHRISTOFFERSEN PARKWAY, TURLOCK, CA 95382(209) 632-3901 Get Directions Write a Review

NPPES record last updated: April 13, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Marilou Orpilla Ostrea Md NPPES

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

MARILOU ORPILLA OSTREA MD (NPI 1427347590) is an individual pediatrics provider in Turlock, California, licensed in California (A113702) and active in the NPI registry since March 2011. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1427347590
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameMARILOU ORPILLA OSTREACredential: MD
Location Address3100 WEST CHRISTOFFERSEN PARKWAYTurlock, CA 95382-9547
Mailing Address600 Coffee RdModesto, CA 95355-4201 · (209) 521-6097
Phone(209) 632-3901
Sole ProprietorNo
Enumeration DateMarch 29, 2011
Last NPPES UpdateApril 13, 2015
✔ NPI 1427347590 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A113702
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
3100 WEST CHRISTOFFERSEN PARKWAY, Turlock, CA 95382
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Other Identifiers 1

OtherA113702CA · Medical License

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marilou Orpilla Ostrea Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Marilou Ostrea reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sutter Valley Medical Foundation
9.9 mi
Multi-Specialty
600 COFFEE RD
Modesto, CA 95355
  • Reassigned Medicare billing, California enrollment
  • 3,056 clinicians in this Medicare group
NPI 1669846986 (209) 524-1211

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 95382 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
$90.32 typical visit price
range $58.87 – $176.60
Typical copayment $22.58 (range $14.71 – $44.15)
Most-billed visit code 99203
Established Patient
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
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 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SUTTER GOULD MEDICAL FOUNDATION
Family Medicine
3100 WEST CHRISTOFFERSEN PARKWAY
TURLOCK, CA 95382
Stanislaus County (209) 632-3901
SUTTER VALLEY MEDICAL FOUNDATION
Durable Medical Equipment & Medical Supplies
3100 WEST CHRISTOFFERSEN PARKWAY
TURLOCK, CA 95382
Stanislaus County (209) 632-3901
EDMOND GHAHRAMANI M.D.
Family Medicine
3100 WEST CHRISTOFFERSEN PARKWAY
TURLOCK, CA 95382
Stanislaus County (209) 632-3901

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 Marilou Ostrea's NPI number?

The NPI number for Marilou Ostrea is 1427347590. It was assigned to this individual provider in the NPPES registry on March 29, 2011.

Where is Marilou Ostrea located?

Marilou Ostrea practices at 3100 West Christoffersen Parkway, Turlock, CA 95382. The listed phone number is (209) 632-3901.

What is Marilou Ostrea's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Marilou Ostrea enrolled in Medicare?

Yes. Marilou Ostrea is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Marilou Ostrea's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marilou Ostrea reassigns Medicare benefits to Sutter Valley Medical Foundation (Modesto, CA). 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 Marilou Ostrea'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 Marilou Ostrea was last updated on April 13, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.