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SILVIA ALONZO MS, PA-C
NPI 1942586623
Physician Assistant - Medical in Diamond Bar, CA

Active since October 26, 2011PECOS EnrolledAccepts Medicare Assignment
1514 VALLEY VISTA DR, DIAMOND BAR, CA 91765(909) 860-1144(909) 860-7684 Get Directions Write a Review

NPPES record last updated: October 14, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Oct 14, 2021, Oct 19, 2020, Nov 15, 2018 and 1 more (4 updates tracked since 2017).

About Silvia Alonzo Ms, Pa-c NPPES

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

SILVIA ALONZO MS, PA-C (NPI 1942586623) is an individual medical provider in Diamond Bar, California, licensed in California (PA21842) and active in the NPI registry since October 2011. She is enrolled in Medicare PECOS and is a graduate of Other (2011).

NPPES Registry Identity

NPI1942586623
Entity TypeIndividualFemale
Primary Taxonomy363AM0700X
Provider Legal NameSILVIA ALONZOCredential: MS, PA-C
Location Address1514 VALLEY VISTA DRDiamond Bar, CA 91765-3929
Mailing Address1514 Valley Vista DrDiamond Bar, CA 91765-3929 · (909) 860-1144 · Fax (909) 860-7684
Phone(909) 860-1144
Fax(909) 860-7684
Sole ProprietorYes
Medical School CMSOtherGraduated 2011
Enumeration DateOctober 26, 2011
Last NPPES UpdateOctober 14, 20214 updates tracked since enumeration
NPPES CertifiedOctober 14, 2021
✔ NPI 1942586623 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
License✔ Licensed in CA · PA21842
1514 VALLEY VISTA DR, Diamond Bar, CA 91765
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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

Silvia Alonzo Ms, Pa-c 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 ID2365683240
PECOS Enrollment IDI20130719000399
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 4

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 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.
92 services72 patients
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.
91 services76 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.
24 services24 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
14 services14 patients

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
5 suppliers16 claims28 services$6.75 avg. paid by Medicare
Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613
DME-Drugs Administered Through DME · category DG006N
3 suppliers12 claims1,423 services$0.04 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
1 supplier11 claims11 services$198.85 avg. paid by Medicare
Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513
DME-Other DME · category DE000N
3 suppliers12 claims12 services$26.18 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 17

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

AARON LIN D.O.
Family Medicine
1514 VALLEY VISTA DR, ST JUDE HERITAGE MEDICAL GROUP
DIAMOND BAR, CA 91765
Los Angeles County (909) 860-1144
KELI LAYTON-CUNNIGAN PA
Physician Assistant
1514 VALLEY VISTA DR
DIAMOND BAR, CA 91765
Los Angeles County (909) 860-1144
SAROM PYUN M.D.
Family Medicine
1514 VALLEY VISTA DR
DIAMOND BAR, CA 91765
Los Angeles County (909) 860-1144
WILFREDO ALEJO M.D.
Pediatrics
1514 VALLEY VISTA DR
DIAMOND BAR, CA 91765
Los Angeles County (909) 860-1144
DOUGLAS STARR MD
Family Medicine
1514 VALLEY VISTA DR
DIAMOND BAR, CA 91765
Los Angeles County (909) 860-1144
WILLIAM FENERTY
Family Medicine
1514 VALLEY VISTA DR
DIAMOND BAR, CA 91765
Los Angeles County (714) 449-4842
DENETTE MUNCHEL PA
Physician Assistant
1514 VALLEY VISTA DR
DIAMOND BAR, CA 91765
Los Angeles County (909) 860-1144
PROVIDENCE MEDICAL FOUNDATION
General Practice
1514 VALLEY VISTA DR
DIAMOND BAR, CA 91765
Los Angeles County (909) 860-1144

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 Silvia Alonzo's NPI number?

The NPI number for Silvia Alonzo is 1942586623. It was assigned to this individual provider in the NPPES registry on October 26, 2011.

Where is Silvia Alonzo located?

Silvia Alonzo practices at 1514 Valley Vista Dr, Diamond Bar, CA 91765. The listed phone number is (909) 860-1144.

What is Silvia Alonzo's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is Silvia Alonzo enrolled in Medicare?

Yes. Silvia Alonzo 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 Silvia Alonzo was last updated on October 14, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.