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DR. GUILLERMO SAENZ ZAVALA MD
NPI 1720475478
Family Medicine in Fontana, CA

Active since April 21, 2015PECOS EnrolledAccepts Medicare Assignment
17234 VALLEY BLVD, FONTANA, CA 92335(909) 427-5084(909) 427-5022 Get Directions Write a Review

NPPES record last updated: August 2, 2018. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Guillermo Saenz Zavala Md NPPES

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

DR. GUILLERMO SAENZ ZAVALA MD (NPI 1720475478) is an individual family medicine provider in Fontana, California, licensed in California (A153513) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2012).

NPPES Registry Identity

NPI1720475478
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. GUILLERMO SAENZ ZAVALACredential: MD
Location Address17234 VALLEY BLVDFontana, CA 92335
Mailing Address17234 Valley BlvdFontana, CA 92335
Phone(909) 427-5084
Fax(909) 427-5022
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateApril 21, 2015
Last NPPES UpdateAugust 2, 2018
✔ NPI 1720475478 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · A153513
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
17234 VALLEY BLVD, Fontana, CA 92335
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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

Dr. Guillermo Saenz Zavala 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 ID1658613450
PECOS Enrollment IDI20190426000962
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.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
153 services98 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
34 services34 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
30 services30 patients
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211
This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.
21 services15 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
19 services19 patients
Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit G0438
An annual wellness visit is a yearly appointment with your doctor to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's an opportunity to discuss your health status and goals and get a plan tailored for you.
19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92335 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 20

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

VENKATA SAITEJA PAMIDIMUKKALA DO
Student in an Organized Health Care Education/Training Program
17234 VALLEY BLVD
FONTANA, CA 92335
San Bernardino County (925) 819-4476
JAMI WANG DO
Psychiatry & Neurology (Psychiatry)
17234 VALLEY BLVD, BUILDING A
FONTANA, CA 92335
San Bernardino County (909) 427-5679
URVASHI SINGH
Student in an Organized Health Care Education/Training Program
17234 VALLEY BLVD, BUILDING A
FONTANA, CA 92335
San Bernardino County (909) 427-5679
GENISE URSIE JADE BROWNE MD
Student in an Organized Health Care Education/Training Program
17234 VALLEY BLVD, BUILDING A
FONTANA, CA 92335
San Bernardino County (407) 309-0538
DR. ALEXANDER JASON BRESSLER DO
Family Medicine
17234 VALLEY BLVD
FONTANA, CA 92335
San Bernardino County (909) 427-5084
DR. GREISHKA NICOLE CORDERO BAEZ MD
Student in an Organized Health Care Education/Training Program
17234 VALLEY BLVD, BUILDING A
FONTANA, CA 92335
San Bernardino County (909) 427-5679
DR. JING YA GAO DO
Student in an Organized Health Care Education/Training Program
17234 VALLEY BLVD
FONTANA, CA 92335
San Bernardino County (833) 574-2273
EMILY ISABEL MULDER
Student in an Organized Health Care Education/Training Program
17234 VALLEY BLVD, BUILDING A
FONTANA, CA 92335
San Bernardino County (833) 574-2273

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 Guillermo Saenz Zavala's NPI number?

The NPI number for Guillermo Saenz Zavala is 1720475478. It was assigned to this individual provider in the NPPES registry on April 21, 2015.

Where is Guillermo Saenz Zavala located?

Guillermo Saenz Zavala practices at 17234 Valley Blvd, Fontana, CA 92335. The listed phone number is (909) 427-5084.

What is Guillermo Saenz Zavala's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Guillermo Saenz Zavala enrolled in Medicare?

Yes. Guillermo Saenz Zavala 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 Guillermo Saenz Zavala was last updated on August 2, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.