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SYDNEY GUENTHER
NPI 1740038603
Nurse Practitioner - Women's Health in San Jose, CA

Active since May 07, 2024PECOS Enrolled
5440 THORNWOOD DR STE G, SAN JOSE, CA 95123(408) 281-9777 Get Directions Write a Review

NPPES record last updated: May 21, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 21, 2026, May 7, 2024 (2 updates tracked since 2024).

About Sydney Guenther NPPES

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

SYDNEY GUENTHER (NPI 1740038603) is an individual women's health provider in San Jose, California, licensed in California (95039490) and active in the NPI registry since May 2024. She is enrolled in Medicare PECOS and maintains a secondary practice location in Lynn.

NPPES Registry Identity

NPI1740038603
Entity TypeIndividualFemale
Primary Taxonomy363LW0102X
Provider Legal NameSYDNEY GUENTHER
Location Address5440 THORNWOOD DR STE GSan Jose, CA 95123-1217
Mailing Address5440 Thornwood Dr Ste GSan Jose, CA 95123-1217
Phone(408) 281-9777
Sole ProprietorNo
Enumeration DateMay 7, 2024
Last NPPES UpdateMay 21, 20262 updates tracked since enumeration
NPPES CertifiedMay 21, 2026
✔ NPI 1740038603 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Women's HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LW0102X
License✔ Licensed in CA · 95039490
5440 THORNWOOD DR STE G, San Jose, CA 95123
Open in Google Maps ↗

Secondary Practice Location 1

Location 120 Central AveLynn, MA 01901-1201 · Phone (781) 581-3900

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sydney Guenther 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95123 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
$106.47 typical visit price
range $70.37 – $206.04
Typical copayment $26.61 (range $17.59 – $51.51)
Most-billed visit code 99203
Established Patient
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
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 4

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

GAURI VATS FNP
Nurse Practitioner (Family)
5440 THORNWOOD DR STE G
SAN JOSE, CA 95123
Santa Clara County (408) 574-1000
JAINABA DUMBUYA PA
Physician Assistant
5440 THORNWOOD DR STE G
SAN JOSE, CA 95123
Santa Clara County (408) 281-9777
LUCY CAMPOSANO-HIDALGO RN
Registered Nurse
5440 THORNWOOD DR STE G
SAN JOSE, CA 95123
Santa Clara County (408) 281-9777
AJA BASU FNP
Nurse Practitioner (Family)
5440 THORNWOOD DR STE G
SAN JOSE, CA 95123
Santa Clara County (408) 281-9777

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 Sydney Guenther's NPI number?

The NPI number for Sydney Guenther is 1740038603. It was assigned to this individual provider in the NPPES registry on May 7, 2024.

Where is Sydney Guenther located?

Sydney Guenther practices at 5440 Thornwood Dr Ste G, San Jose, CA 95123. The listed phone number is (408) 281-9777.

What is Sydney Guenther's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Women's Health, with taxonomy code 363LW0102X.

Is Sydney Guenther enrolled in Medicare?

Yes. Sydney Guenther is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Sydney Guenther was last updated on May 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.