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VANESSA RAE MARTINEZ GUERRA
NPI 1093400970
Internal Medicine in Fremont, CA

Active since April 06, 2023PECOS Enrolled
2000 MOWRY AVE, FREMONT, CA 94538(510) 797-1111 Get Directions Write a Review

NPPES record last updated: June 22, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

About Vanessa Rae Martinez Guerra NPPES

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

VANESSA RAE MARTINEZ GUERRA (NPI 1093400970) is an individual internal medicine provider in Fremont, California, licensed in California (A205972) and active in the NPI registry since April 2023. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1093400970
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameVANESSA RAE MARTINEZ GUERRA
Location Address2000 MOWRY AVEFremont, CA 94538-1716
Mailing Address2000 Mowry AveFremont, CA 94538-1716
Phone(510) 797-1111
Sole ProprietorNo
Enumeration DateApril 6, 2023
Last NPPES UpdateJune 22, 2026
NPPES CertifiedJune 22, 2026
✔ NPI 1093400970 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 · A205972
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.
2000 MOWRY AVE, Fremont, CA 94538
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Other Names 1

Former Name (1)Dr. Vanessa Rae Moore Md

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Vanessa Rae Martinez Guerra 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 94538 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

TESFOM BERHE CCP
Perfusionist
2000 MOWRY AVE
FREMONT, CA 94538
Alameda County (510) 797-1111
MRS. SHERRIE DENISE KNEEBONE N.P.
Nurse Practitioner (Family)
2000 MOWRY AVE
FREMONT, CA 94538
Alameda County (510) 795-2004
DR. ALEXANDER P SAH MD
Orthopaedic Surgery (Adult Reconstructive Orthopaedic Surgery)
2000 MOWRY AVE, CENTER FOR JOINT REPLACEMENT BLDG
FREMONT, CA 94538
Alameda County (510) 818-7200
JESSICA YOUNG NP
Nurse Practitioner (Family)
2000 MOWRY AVE
FREMONT, CA 94538
Alameda County (510) 797-1111
PAUL VINCENT AGUILERA MD
Internal Medicine
2000 MOWRY AVE
FREMONT, CA 94538
Alameda County (510) 797-1111
DR. ANKUR AJAY DOSHI MD
Radiology (Vascular & Interventional Radiology)
2000 MOWRY AVE
FREMONT, CA 94538
Alameda County (510) 818-7362
MEDIHA SIDDIQUI JALEEL MD
Internal Medicine
2000 MOWRY AVE
FREMONT, CA 94538
Alameda County (510) 797-1111
DR. LYN MARISE DOS SANTOS MD
Pediatrics
2000 MOWRY AVE
FREMONT, CA 94538
Alameda County (510) 795-2002

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 Vanessa Martinez Guerra's NPI number?

The NPI number for Vanessa Martinez Guerra is 1093400970. It was assigned to this individual provider in the NPPES registry on April 6, 2023. The provider is also known as Dr. Vanessa Rae Moore MD.

Where is Vanessa Martinez Guerra located?

Vanessa Martinez Guerra practices at 2000 Mowry Ave, Fremont, CA 94538. The listed phone number is (510) 797-1111.

What is Vanessa Martinez Guerra's specialty?

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

Is Vanessa Martinez Guerra enrolled in Medicare?

Yes. Vanessa Martinez Guerra is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Vanessa Martinez Guerra was last updated on June 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.