Provider Profile
Silvia Alonzo, MS, PA-C
Unclaimed ProfileAbout 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.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
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
Most searched conditions
- Common cold
- Diabetes
- Flu
- High blood pressure
- Sinus infection
- UTI
Allergies
- Hives
- Seasonal allergies
Blood
- Iron-deficiency anemia
Bone and joint
- Osteoporosis
- Tendinitis and tendinopathy
Digestive
- Acid reflux
- IBS
- Stomach Bug and Food Poisoning
Digestive health
- Constipation
- Fatty liver disease
- Hemorrhoids
Ear, Nose & Throat
- Ear infection
Endocrine
- Hypothyroidism
Eye Care
- Pink eye
Foot and ankle
- Foot fungus
- Heel pain
General Health
- Chronic fatigue
Hair and scalp
- Hair loss
Headache and brain
- Tension headaches
Heart & Circulation
- High cholesterol
Hormones
- Perimenopause
- Testosterone deficiency
Infections
- Cellulitis
- COVID-19
- Herpes simplex of the skin
- Ringworm
- Strep throat
Injury
- Sprains and muscle strains
Men's Health
- Erectile dysfunction
Mental Health
- Anxiety
- Depression
Metabolic
- Obesity
Nerve conditions
- Carpal tunnel
- Sciatica
Neurology
- Dizziness and vertigo
- Migraines
Pain
- Gout
- Low back pain
- Osteoarthritis
- Whiplash
Respiratory
- Acute bronchitis
- Asthma
- Community-acquired pneumonia
Sexual Health
- Sexually transmitted infections
Skin
- Acne
- Eczema
- Psoriasis
- Shingles
Skin cancer
- Precancerous sun spot
Skin conditions
- Rosacea
Sleep
- Insomnia and Sleep Problems
Women's Health
- Yeast infection
Procedures & services
Most searched procedures
- Annual physical exam
- Routine blood work
- Sick visit
- Sports physical
- Suture removal
- Vaccination
Allergies
- Allergy Testing and Shots
Counseling
- Smoking cessation counseling
Dermatology
- Cryotherapy for skin lesions
- Skin biopsy
- Skin Tag Removal
Diagnostic Tests
- COVID-19 Rapid Test
- Mono Rapid Test
- Rapid Flu Swab
- Rapid strep testing
- TB Skin Test
- Urine Drug Screen
- Urine Pregnancy Test
Ear, Nose & Throat
- Earwax removal
- Removal of Foreign Object from Ear or Nose
Evaluations
- Pre-Op Clearance Exam
Exams
- DOT Physical Exam
- Medicare annual wellness visit
- Pre-Employment Physical
- School and camp physical
General Care
- Prescription Refill Visit
- Wound Care and Dressing Change
Heart & Circulation
- EKG
Heart health
- Heart monitor
Hormones
- Hormone replacement therapy consult
Injections
- Bursa injection
- Joint injection or aspiration
- Vitamin B12 Injections
Injury Care
- Burn Treatment
- Splinting and temporary casting
Lab tests
- Cholesterol screening
- Hemoglobin A1c Test
- Thyroid Blood Test
- Urinalysis
Mental Health
- Depression screening
Metabolic
- Weight Loss Medication Consultation
Minor surgery
- Cyst Removal
Minor Surgery
- Incision and drainage of an abscess
- Ingrown toenail removal
- Minor laceration repair
- Superficial foreign-body removal
Pain Management
- Trigger-point injection
Prevention
- Travel health clinic and vaccines
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
- Virtual doctor visit
Women's Health
- Birth control counseling
- Well-woman exam
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. Guide.md cannot book appointments or pass on messages — please call the office directly.
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
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.