Allyssa Lorian Castillo, DNP
- Part D claims, 2024
- 225
- Hospital affiliations
- 1
- Industry payments
- $459
- Medical groups
- 2
- 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 Allyssa Castillo'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.
Allyssa Lorian Castillo is an internist in San Antonio, Texas
Allyssa Castillo practices at University Hospital (San Antonio) in San Antonio, Texas.
Allyssa Castillo's NPI, 1780454561, was assigned on January 3, 2024. Allyssa Castillo holds Texas license 1139450.
- NPI
- 1780454561NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072955186
- NPI enumeration date
- January 3, 2024
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (210) 358-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 29
- Medical school graduation
- 2023
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Allyssa Lorian Castillo practices at University Hospital (San Antonio) in San Antonio, Texas
Allyssa Castillo'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
Allyssa Lorian Castillo is affiliated with 4 sites of care and 2 medical groups
Allyssa Castillo's primary practice is University Hospital (San Antonio) in San Antonio, Texas. Allyssa Castillo is also affiliated with CHRISTUS Santa Rosa Hospital - San Marcos. The medical group on file is Texas Liver Institute. Dmand AI also links Allyssa Castillo to 1 more community health center, 1 group practice or clinic and 1 medical group, each named with a free account.
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 Allyssa Lorian Castillo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Allyssa Castillo practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Hospital (San Antonio) | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Allyssa Lorian Castillo is one of 8,437 internists in Texas
Internal medicine is Allyssa Castillo's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Allyssa Castillo is licensed in Texas.
Specialties and state licenses
- Internal medicine, TexasPrimary
Internists near Allyssa Castillo
Counts of internists 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
Allyssa Lorian Castillo's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Allyssa Castillo's median patient age at 60, with 41% women.
Allyssa Castillo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women41%
- Men59%
Source: Dmand AI Patient Panel Data
Allyssa Lorian Castillo wrote 225 Medicare Part D claims in 2024
In 2024, Allyssa Castillo wrote 225 Medicare Part D claims for 78 patients. 89% of them were for generic drugs.
Allyssa Castillo's Part D claims by kind of drug, 2024
- Generic201 claims89%
- Brand-name24 claims11%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Allyssa Lorian Castillo offers telehealth to Medicare patients
Allyssa Castillo accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Allyssa Castillo as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Allyssa Lorian Castillo received $459 in industry payments in 2025
CMS Open Payments shows 8 general payments to Allyssa Castillo from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Ipsen Biopharmaceuticals, Inc paid the most, $291.
Companies that paid Allyssa Castillo the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Allyssa Lorian Castillo'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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Allyssa Lorian Castillo
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Allyssa Lorian Castillo's NPI number?
Allyssa Lorian Castillo's NPI number is 1780454561. It was assigned on January 3, 2024, and it is active in the NPI Registry.
What does Allyssa Lorian Castillo specialize in?
Allyssa Lorian Castillo is an internist in San Antonio, Texas. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Allyssa Lorian Castillo practice?
Allyssa Castillo practices at 4502 Medical Dr, San Antonio, TX 78229. Allyssa Castillo's primary practice is University Hospital (San Antonio) in San Antonio, Texas. Dmand AI also links Allyssa Castillo to 1 community health center, 1 group practice or clinic and 1 medical group.
What is Allyssa Lorian Castillo's office phone number?
The practice phone on file for Allyssa Castillo is (210) 358-4000.
What is Allyssa Lorian Castillo's medical license number?
Allyssa Castillo holds Texas license 1139450.
Which hospitals is Allyssa Lorian Castillo affiliated with?
Allyssa Castillo is affiliated with CHRISTUS Santa Rosa Hospital - San Marcos.
What medical group is Allyssa Lorian Castillo part of?
Allyssa Castillo is linked to Texas Liver Institute. Dmand AI links Allyssa Castillo to 1 more medical group.
Does Allyssa Lorian Castillo accept Medicare?
Yes. CMS lists Allyssa Castillo as accepting Medicare assignment.
Does Allyssa Lorian Castillo offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Allyssa Castillo as offering telehealth services.
Has Allyssa Lorian Castillo received payments from drug or device companies?
CMS Open Payments shows $459 in general payments to Allyssa Castillo from 2 companies from 2025 to 2025. The largest total came from Ipsen Biopharmaceuticals, Inc.
How long has Allyssa Lorian Castillo been practicing?
Allyssa Castillo graduated from medical school in 2023, 3 years ago.
Selling to internal medicine practices?
See internists in Texas by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card