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Edit this profileAt a glance
- 2001 4Th Ave, San Diego, CA 92101
About Dr. Castillo
Guillermo Castillo, M.D. is a healthcare provider in San Diego, CA specializing in family medicine. Guillermo trained at University of Southern California Keck School of Medicine, graduating in 2001. According to Medicare claims data, Guillermo cared for 27 Medicare patients across 27 services. The services billed most often include electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional. This provider record is associated with NPI 1366558322.
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
- (858) 499-2717
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
2001 4TH AVE
San Diego, CA 92101
Conditions Commonly Evaluated or Treated
Within Family Medicine 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
Bariatrics
Cancer Prevention
Cancer risk
Digestive
Environmental health
- Asbestos Exposure
- Contaminated drinking water exposure
- Heat exhaustion and heat stroke
- Radon gas exposure
- Tick bite and Lyme disease risk
- Toxic Mold Exposure
- Wildfire smoke and air pollution exposure
- Workplace Chemical Exposure
General wellness
Heart health
Infectious Disease
Infectious disease
Kidney health
Lifestyle & wellness
Lifestyle health
Longevity
Metabolic & Lifestyle
Occupational health
Occupational Health
Rashes & allergy
Sexual Health
Sexual health
Substance use
Travel health
Wellness and energy
Workplace health
Wounds & skin
Most searched conditions
Cardiometabolic
Genitourinary and reproductive
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
Skin
Common childhood and ear conditions
Pain & Joints
Procedures & services
Addiction & habits
Bladder & bowel
Breathing
Cancer Screening
Cancer screening
Checkups & exams
Chronic illness
Diagnostic testing
Diagnostic Tests
- COVID-19 Rapid Test
- COVID-19 testing
- Rapid Flu Swab
- Rapid Strep and Flu Swabs
- Urine Pregnancy Test
- Urine Drug Screen
Diagnostics & screening
Environmental health
Exams
Exams & Screenings
Fitness & body composition
Foot and Leg Pain
Heart & Circulation
Heart & circulation
Immunizations
Infection & Microbiology Tests
Lifestyle & Prevention
Longevity
Lower endoscopy
Metabolic health
Minor Procedures
Occupational health
Occupational Health
Office procedures
- Minor laceration repair
- Removal of a minor skin lesion
- Superficial foreign-body removal
- Earwax removal
- Incision and drainage of an abscess
Post-Op Care
Preventive and evaluation
Preventive Care
Preventive imaging
Preventive interventions
- Vaccinations and immunizations
- Weight-management counseling
- Birth control counseling
- Smoking cessation counseling
Preventive screening
Routine Blood Tests
Screening & labs
Screening and diagnostic testing
Screening and testing
- Blood pressure screening
- Diabetes and prediabetes screening
- Point-of-care laboratory testing
- Cholesterol screening
- Depression screening
- EKG
Skin Procedures
Sleep Health
Travel Health
Travel medicine
Urgent Care Procedures
Wellness
Wellness & Screening
Wellness & Weight
Women's Health
Workplace health
Wound care
Wounds & skin
Sleep
Most searched procedures
Injections
Lungs & Breathing
Pain Management
Respiratory
Senior Care
Sexual & Reproductive Health
Procedures Most Often Billed to Medicare
27 services · 27 patients · 1 distinct code
| Procedure | Type | Code | Services |
|---|---|---|---|
| Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional | Treatment | 93229 |
27 |
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.
Other family doctors at this location 4
Same specialty, same street address — most likely the same department or group.
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.
More connections — 24 related providers in 3 groups
Other family doctors in San Diego 8
Same specialty, same city.
Trained at University of Southern California Keck School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2001 at University of Southern California Keck School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Guillermo Castillo?
Guillermo Castillo is a family doctor in San Diego, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
What is Guillermo Castillo's address?
Guillermo Castillo is listed at 2001 4Th Ave, San Diego, CA 92101. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Guillermo Castillo?
The number on file is (858) 499-2717. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Guillermo Castillo's NPI number?
Guillermo Castillo's National Provider Identifier is 1366558322. 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 Guillermo Castillo train?
Guillermo Castillo attended University of Southern California Keck School of Medicine, graduating in 2001. This comes from the CMS National Downloadable File.
CMS public data
How long has Guillermo Castillo been practicing?
Guillermo Castillo has 25 years experience. Calculated from a graduation year of 2001, reported in the CMS National Downloadable File.
CMS public data
What procedures does Guillermo Castillo perform?
According to Medicare billing data, Guillermo Castillo provides treatments such as electrocardiogram up to 30 days continuous with transmission of patient triggered events with review and report by health care professional. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Guillermo Castillo confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Guillermo Castillo. If this is you, claiming it is free.
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