Dr. Sylvia Leal-Castanon, MD
- Hospital affiliations
- 1
- Industry payments
- $15
- Medical group
- 1
- Insurance carriers
- 16
- State license
- 1
- Practice address
- 4502 Medical Dr, San Antonio, TX 78229
- Practice phone
- Call (210) 358-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Hospital (San Antonio)
San Antonio, Texas
Find Dr. Leal-Castanon's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Sylvia Leal-Castanon is a pediatrician in San Antonio, Texas
Dr. Leal-Castanon practices at University Hospital (San Antonio) in San Antonio, Texas.
Dr. Leal-Castanon's NPI, 1841307915, was assigned on August 24, 2006. Dr. Leal-Castanon graduated from Joe R. & Teresa Lozano Long School of Medicine in 1992. Dr. Leal-Castanon holds Texas license J5603.
- NPI
- 1841307915NPI Registry (opens in a new tab)
- NPI enumeration date
- August 24, 2006
- NPI status
- Active
- Practice phone
- (210) 358-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Sylvia Leal-Castanon practices at University Hospital (San Antonio) in San Antonio, Texas
Dr. Leal-Castanon's primary practice is University Hospital (San Antonio), at 4502 Medical Dr, San Antonio, TX 78229 in Bexar County. The practice phone is (210) 358-4000.
- University Hospital (San Antonio)4502 Medical Dr, San Antonio, TX 78229 · Bexar CountyPhone(210) 358-4000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Sylvia Leal-Castanon is affiliated with 2 sites of care and 1 medical group
Dr. Leal-Castanon's primary practice is University Hospital (San Antonio) in San Antonio, Texas. Dr. Leal-Castanon is also affiliated with CHRISTUS Children's. The medical group on file is University Medicine Associates.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Sylvia Leal-Castanon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leal-Castanon practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Hospital (San Antonio) | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sylvia Leal-Castanon is one of 4,833 pediatricians in Texas
Pediatrics is Dr. Leal-Castanon's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Leal-Castanon is board certified in pediatrics by the American Board of Pediatrics. Dr. Leal-Castanon is licensed in Texas.
Specialties and state licenses
- Pediatrics, TexasPrimary
Pediatricians near Dr. Leal-Castanon
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Sylvia Leal-Castanon's patients have a median age of 6
Across all payers, Dmand AI patient panel data puts Dr. Leal-Castanon's median patient age at 6, with 45% women.
Dr. Leal-Castanon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 6
Patient panel by sex, all payers
- Women45%
- Men55%
Source: Dmand AI Patient Panel Data
Dr. Sylvia Leal-Castanon received $15 in industry payments in 2019
CMS Open Payments shows 1 general payment to Dr. Leal-Castanon from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $15.
Companies that paid Dr. Leal-Castanon the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sylvia Leal-Castanon has 1 award and honors on record
Dmand AI lists 1 award for Dr. Leal-Castanon.
Awards and honors for Dr. Leal-Castanon
- Undated
- AAP Fellow
Source: Dmand AI Professional Profile Data
Dr. Sylvia Leal-Castanon graduated from Joe R. & Teresa Lozano Long School of Medicine
Dr. Leal-Castanon graduated from Joe R. & Teresa Lozano Long School of Medicine in 1992. Dr. Leal-Castanon is a member of AAP.
- Medical school
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Sylvia Leal-Castanon accepts plans from 16 insurance carriers
Dr. Leal-Castanon is in network with 16 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- Alliant Health Plans
- Aspirus Health Plan
- HCSC
- Molina
- +8 more carriersWith a free account
Plan types Dr. Leal-Castanon accepts, by number of carriers
- HMO11
- PPO8
- POS5
- EPO4
- Medicare3
Source: Dmand AI Insurance Network Data
Sources for Dr. Sylvia Leal-Castanon's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Sylvia Leal-Castanon
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Sylvia Leal-Castanon's NPI number?
Dr. Sylvia Leal-Castanon's NPI number is 1841307915. It was assigned on August 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Sylvia Leal-Castanon?
Dr. Sylvia Leal-Castanon is a pediatrician in San Antonio, Texas. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Sylvia Leal-Castanon practice?
Dr. Leal-Castanon practices at 4502 Medical Dr, San Antonio, TX 78229. Dr. Leal-Castanon's primary practice is University Hospital (San Antonio) in San Antonio, Texas.
What is Dr. Sylvia Leal-Castanon's office phone number?
The practice phone on file for Dr. Leal-Castanon is (210) 358-4000.
What is Dr. Sylvia Leal-Castanon's medical license number?
Dr. Leal-Castanon holds Texas license J5603.
Which hospitals is Dr. Sylvia Leal-Castanon affiliated with?
Dr. Leal-Castanon is affiliated with CHRISTUS Children's.
What medical group is Dr. Sylvia Leal-Castanon part of?
Dr. Leal-Castanon is linked to University Medicine Associates.
Is Dr. Sylvia Leal-Castanon board certified?
Yes. Dr. Leal-Castanon is board certified in pediatrics by the American Board of Pediatrics.
Where did Dr. Sylvia Leal-Castanon go to medical school?
Dr. Leal-Castanon graduated from Joe R. & Teresa Lozano Long School of Medicine in 1992.
Has Dr. Sylvia Leal-Castanon received payments from drug or device companies?
CMS Open Payments shows $15 in general payments to Dr. Leal-Castanon from 1 company from 2019 to 2019. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Sylvia Leal-Castanon been practicing?
Dr. Leal-Castanon graduated from medical school in 1992, 34 years ago.
What insurance does Dr. Sylvia Leal-Castanon accept?
Dr. Leal-Castanon is in network with 16 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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