MARIA WEN-YU LIAO OTERA MD
NPI 1386831071
Internal Medicine in Harbor City, CA

Active since September 27, 2007PECOS EnrolledAccepts Medicare Assignment
25825 VERMONT AVE, HARBOR CITY, CA 90710(310) 325-5111 Get Directions Write a Review

NPPES record last updated: December 16, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Maria Wen-yu Liao Otera Md NPPES

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

MARIA WEN-YU LIAO OTERA MD (NPI 1386831071) is an individual internal medicine provider in Harbor City, California, licensed in California (A64909) and active in the NPI registry since September 2007. She is enrolled in Medicare PECOS and is a graduate of Georgetown University School Of Medicine (1996).

NPPES Registry Identity

NPI1386831071
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMARIA WEN-YU LIAO OTERACredential: MD
Location Address25825 VERMONT AVEHarbor City, CA 90710-3518
Mailing Address393 E Walnut St, 3rd Floor Phr SystemsPasadena, CA 91188-0001
Sole ProprietorNo
Medical School CMSGeorgetown University School Of MedicineGraduated 1996
Enumeration DateSeptember 27, 2007
Last NPPES UpdateDecember 16, 2021
NPPES CertifiedDecember 16, 2021
✔ NPI 1386831071 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 · A64909
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.
25825 VERMONT AVE, Harbor City, CA 90710

Other Names 1

Professional Name (2)Maria Wen- Yu Liao Md

Other Identifiers 1

Medicaid00A649090CA

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

Maria Wen-yu Liao Otera 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 ID7113974411
PECOS Enrollment IDI20050407000780
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 Maria Otera reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Health Maintenance Organization
25825 VERMONT AVE
Harbor City, CA 90710
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group

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 90710 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.

Pharmacist
25825 VERMONT AVE
HARBOR CITY, CA 90710
Pharmacist
25825 VERMONT AVE
HARBOR CITY, CA 90710
Respiratory Therapist, Registered (Neonatal/Pediatrics)
25825 VERMONT AVE
HARBOR CITY, CA 90710
Internal Medicine (Pulmonary Disease)
25825 VERMONT AVE
HARBOR CITY, CA 90710
Pharmacist
25825 VERMONT AVE
HARBOR CITY, CA 90710
Internal Medicine
25825 VERMONT AVE
HARBOR CITY, CA 90710
Internal Medicine
25825 VERMONT AVE
HARBOR CITY, CA 90710
Otolaryngology (Plastic Surgery within the Head & Neck)
25825 VERMONT AVE
HARBOR CITY, CA 90710

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 Maria Otera's NPI number?

The NPI number for Maria Otera is 1386831071. It was assigned to this individual provider in the NPPES registry on September 27, 2007. The provider is also known as Maria Wen- Yu Liao MD.

Where is Maria Otera located?

Maria Otera practices at 25825 Vermont Ave, Harbor City, CA 90710. The listed phone number is (310) 325-5111.

What is Maria Otera's specialty?

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

Is Maria Otera enrolled in Medicare?

Yes. Maria Otera 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 Maria Otera's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Otera reassigns Medicare benefits to Southern California Permanente Medical Group (Harbor City, 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 Maria Otera'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 Maria Otera was last updated on December 16, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.