Active NPI
Diego Andres Castellon, MD
- Infectious Disease Physician
- San Angelo, TX
National Provider Identifier
1306331665
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Infectious Disease Physician
- License
- 326673
- Practice address
- 120 E Harris Ave
San Angelo, TX 76903-5904 - Phone
- (325) 747-6741
- Fax
- (325) 747-8377
- NPI assigned
- Jun 28, 2018
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Student in an Organized Health Care Education/Training Program | 390200000X | |||
| Infectious Disease Physician | 207RI0200X | 326673 | NY | Primary |
| Internal Medicine Physician | 207R00000X | V4891 | TX |
Addresses
Primary practice location
120 E Harris Ave
San Angelo, TX 76903-5904
Mailing address
120 E Harris Ave
San Angelo, TX 76903-5904
Phone (325) 747-6741
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NY, TX
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20240125002642 | NY | Practitioner - Infectious Disease | 2668825639 | Reassigns benefits to 2 organizations |
| I20241223001874 | TX | Practitioner - Internal Medicine | 2668825639 | Reassigns benefits to 1 organization |
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- Other, 2017
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Shannon Clinic
Practice addresses (Care Compare)
120 E Beauregard Ave
San Angelo, TX 76903-5919
Phone (325) 747-1511
Hospital & facility affiliations
- Shannon Medical Center
- Kimble Hospital
- Lillian M Hudspeth Memorial Hospital
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Jamaica Hospital | Current | Accepting new patients | |
| TJH Medical Services, P.C. | Internal Medicine | Current | Accepting new patients |
| Shannon Clinic | Internal Medicine | Current | Accepting new patients |
| Jamaica Hospital | Current | Accepting new patients | |
| Shannon Medical Center | Past | Accepting new patients |
Locations
11940 Metropolitan Ave
Kew Gardens, NY 11415
Phone (718) 849-0839
80 Marcus Dr
Melville, NY 11747
Phone (631) 391-7889
13303 Jamaica Ave
Richmond Hill, NY 11418
Phone (718) 206-6942
120 E Beauregard Ave
San Angelo, TX 76903
Phone (915) 658-1511
120 E Harris Ave
San Angelo, TX 76903
Phone (325) 653-6741
Interoperability endpoints
- dcastellon165199@direct.medisys.org
- dcastellon70847@shannonhealth.direct-ci.com
Organizations & group practices 7
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Emergency Medical Services (Emergency Medicine) Physician
- Jamaica, NY
- NPI 1477505220
NY
-
- Internal Medicine Physician
- Jamaica, NY
- NPI 1184670465
Internal Medicine, NY
-
- Durable Medical Equipment & Medical Supplies
- San Angelo, TX
- NPI 1124038633
-
- Rural Health Clinic/Center
- Ozona, TX
- NPI 1245230465
-
- Skilled Nursing Facility
- Jamaica, NY
- NPI 1750516795
-
- General Acute Care Hospital
- San Angelo, TX
- NPI 1992707228
Hospital & facility affiliations 4
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Critical Access Hospital
- Junction, TX
- NPI 1164688495
Hospital
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1530144000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1751241600000",
"number": "1306331665",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "120 E HARRIS AVE",
"city": "SAN ANGELO",
"state": "TX",
"postal_code": "769035904",
"telephone_number": "325-747-6741",
"fax_number": "325-747-8377"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "120 E HARRIS AVE",
"city": "SAN ANGELO",
"state": "TX",
"postal_code": "769035904",
"telephone_number": "325-747-6741",
"fax_number": "325-747-8377"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CASTELLON",
"first_name": "DIEGO",
"middle_name": "ANDRES",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2018-06-28",
"last_updated": "2025-06-30",
"certification_date": "2025-06-30",
"status": "A"
},
"taxonomies": [
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": null,
"license": null,
"primary": false
},
{
"code": "207RI0200X",
"taxonomy_group": "",
"desc": "Internal Medicine, Infectious Disease",
"state": "NY",
"license": "326673",
"primary": true
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "TX",
"license": "V4891",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in San Angelo, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.