NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alfredo Siller Jr., M.D.

Dermatology Physician in Edinburg, TX · enumerated 2019 · practices at Siller Dermatology & Dermatologic Surgery Pllc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1689133555

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Alfredo Siller Jr.
Credential M.D.
Sex Male
Practice address 4937 S. Jackson Rd., Edinburg, TX, 78539
Phone (956) 627-0232
Fax (956) 338-5668
Enumeration date Mar 19, 2019
Last updated in NPPES Nov 5, 2025

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 57790 (TX) Primary
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 35.150933 (OH) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Alfredo Siller practice?
The practice location on file with NPPES is in Edinburg, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alfredo Siller?
The National Provider Identifier (NPI) for Alfredo Siller is 1689133555, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-05.