Are you Silvia Alonzo, MS, PA-C? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 1514 Valley Vista Dr, Diamond Bar, CA 91765
About Silvia Alonzo
Listed in the NPI registry as a physician assistant — medical, Silvia Alonzo, MS, PA-C practices in Diamond Bar, CA. Medicare claims data shows Silvia provided 221 services to 186 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit. NPI 1942586623 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (909) 860-1144
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
1514 VALLEY VISTA DR
Diamond Bar, CA 91765
Conditions and Services Within This Provider's Scope
Within Physician Assistant - Medical generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Digestive
Most searched conditions
Allergies
Blood
Bone and joint
Digestive health
Ear, Nose & Throat
Endocrine
Eye Care
Foot and ankle
General Health
Hair and scalp
Headache and brain
Heart & Circulation
Hormones
Infections
Injury
Men's Health
Mental Health
Metabolic
Nerve conditions
Neurology
Pain
Respiratory
Sexual Health
Skin
Skin cancer
Skin conditions
Sleep
Women's Health
Procedures & services
Diagnostic Tests
- COVID-19 Rapid Test
- Rapid Flu Swab
- Urine Pregnancy Test
- Mono Rapid Test
- Rapid strep testing
- TB Skin Test
- Urine Drug Screen
Exams
- School and camp physical
- DOT Physical Exam
- Medicare annual wellness visit
- Pre-Employment Physical
Most searched procedures
Allergies
- Allergy Testing and Shots
Counseling
Dermatology
Ear, Nose & Throat
- Earwax removal
- Removal of Foreign Object from Ear or Nose
Evaluations
General Care
- Prescription Refill Visit
- Wound Care and Dressing Change
Heart & Circulation
- EKG
Heart health
- Heart monitor
Hormones
Injections
- Bursa injection
- Joint injection or aspiration
- Vitamin B12 Injections
Injury Care
- Burn Treatment
- Splinting and temporary casting
Lab tests
Mental Health
Metabolic
- Weight Loss Medication Consultation
Minor surgery
Minor Surgery
- Incision and drainage of an abscess
- Ingrown toenail removal
- Minor laceration repair
- Superficial foreign-body removal
Pain Management
Prevention
Respiratory
- Asthma Action Plan Consultation
- Nebulizer Breathing Treatment
Screening
- Blood Pressure Check and Monitoring
- STI and STD Screening
Skin procedures
- Mole Check
- Mole removal
- Wart Removal
Treatments
- IV hydration for cancer patients
Virtual care
Women's Health
Women's health
- Pap smear
Procedures Most Often Billed to Medicare
221 services · 186 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
14 | Less often than most peers in Physician Assistant — Medical |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
92 | As often as other peers in Physician Assistant — Medical |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
91 | As often as other peers in Physician Assistant — Medical |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
24 | Less often than most peers in Physician Assistant — Medical |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other physician assistants in Diamond Bar 2
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2011 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Silvia Alonzo, MS specialize in?
Silvia Alonzo, MS is a physician assistant in Diamond Bar, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Physician Assistant — Medical”.
NPI registry
Where is Silvia Alonzo, MS located?
Silvia Alonzo, MS is listed at 1514 Valley Vista Dr, Diamond Bar, CA 91765. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Silvia Alonzo, MS's phone number?
The number on file is (909) 860-1144. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Silvia Alonzo, MS?
Silvia Alonzo, MS's National Provider Identifier is 1942586623. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Silvia Alonzo, MS train?
Silvia Alonzo, MS attended Other, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Silvia Alonzo, MS have?
Silvia Alonzo, MS has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What does Silvia Alonzo, MS do most often?
According to Medicare billing data, Silvia Alonzo, MS provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Silvia Alonzo, MS's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Silvia Alonzo, MS. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.