Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Texas Em-1 Medical Services PA

Physician Assistant in Mcallen, TX · enumerated 2012 · authorized official William Jernberg, Owner.

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

National Provider Identifier

1205106812

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Registry record

Entity type Organization (Type 2)

Legal business name Texas Em-1 Medical Services PA

Practice address 1900 S D St, Mcallen, TX, 78503

Phone (956) 994-2600

Enumeration date Jan 12, 2012

Last updated in NPPES Jan 12, 2012

Taxonomy & classification

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Primary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name William Jernberg

Title Owner

Phone (214) 712-2000

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 is Texas Em-1 Medical Services PA located?

The practice location on file with NPPES is in Mcallen, TX.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2012-01-12. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-12.