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MARIANNE GUINTU USI NP
NPI 1104507466
Nurse Practitioner - Gerontology in San Bernardino, CA

Active since July 28, 2023PECOS EnrolledAccepts Medicare Assignment
401 E HIGHLAND AVE STE 551, SAN BERNARDINO, CA 92404(909) 882-9150(909) 883-8972 Get Directions Write a Review

NPPES record last updated: March 12, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 12, 2026, Nov 26, 2025, Jul 28, 2023 (3 updates tracked since 2023).

About Marianne Guintu Usi Np NPPES

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

MARIANNE GUINTU USI NP (NPI 1104507466) is an individual gerontology provider in San Bernardino, California, licensed in California (NP95011934) and active in the NPI registry since July 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1104507466
Entity TypeIndividualFemale
Primary Taxonomy363LG0600X
Provider Legal NameMARIANNE GUINTU USICredential: NP
Location Address401 E HIGHLAND AVE STE 551San Bernardino, CA 92404-3840
Mailing Address3660 Park Sierra Dr Ste 203Riverside, CA 92505-3071 · (951) 687-3400 · Fax (951) 687-7630
Phone(909) 882-9150
Fax(909) 883-8972
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateJuly 28, 2023
Last NPPES UpdateMarch 12, 20263 updates tracked since enumeration
NPPES CertifiedMarch 12, 2026
✔ NPI 1104507466 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · GerontologyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LG0600X
License✔ Licensed in CA · NP95011934
401 E HIGHLAND AVE STE 551, San Bernardino, CA 92404
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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

Marianne Guintu Usi Np 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 ID2365805017
PECOS Enrollment IDI20230828003263
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92404 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
$91.88 typical visit price
range $59.60 – $179.42
Typical copayment $22.97 (range $14.90 – $44.85)
Most-billed visit code 99203
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
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 4

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

SAPNA GOPAL SINGH MD
Internal Medicine (Nephrology)
401 E HIGHLAND AVE STE 551
SAN BERNARDINO, CA 92404
San Bernardino County (909) 882-9150
DR. SREESH GOPAL IYENGAR MD
Internal Medicine (Nephrology)
401 E HIGHLAND AVE STE 551
SAN BERNARDINO, CA 92404
San Bernardino County (909) 882-9150
PARAG MEHTANI M.D.
Internal Medicine (Nephrology)
401 E HIGHLAND AVE STE 551
SAN BERNARDINO, CA 92404
San Bernardino County (909) 882-9150
DR. ASHOK NATH M.D.,
Internal Medicine (Nephrology)
401 E HIGHLAND AVE STE 551
SAN BERNARDINO, CA 92404
San Bernardino County (909) 882-9150

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 Marianne Usi's NPI number?

The NPI number for Marianne Usi is 1104507466. It was assigned to this individual provider in the NPPES registry on July 28, 2023.

Where is Marianne Usi located?

Marianne Usi practices at 401 E Highland Ave Ste 551, San Bernardino, CA 92404. The listed phone number is (909) 882-9150.

What is Marianne Usi's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.

Is Marianne Usi enrolled in Medicare?

Yes. Marianne Usi 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.

When was this NPI record last updated?

The NPPES record for Marianne Usi was last updated on March 12, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.