Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

IMMUNO, PA
NPI 1598543753
Allergy & Immunology in San Antonio, TX

Q: What is Immuno, PA's NPI number?

The NPI number for Immuno, PA is 1598543753. It was assigned to this organization in the NPPES registry on September 19, 2023.

Q: What is Immuno, PA's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Q: When was this NPI record last updated?

The NPPES record for Immuno, PA was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 19, 2023

23119 IH 10 W BLDG 22, SAN ANTONIO, TX 78257(210) 899-6856(210) 750-3056 Get Directions Write a Review

NPPES record last updated: October 20, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Immuno, Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

IMMUNO, PA (NPI 1598543753) is a healthcare organization registered as an allergy & immunology in San Antonio, Texas and active in the NPI registry since September 2023. The organization maintains a secondary practice location in San Antonio and lists Araceli Elizalde, Physician Owner, as its authorized official.

NPPES Registry Identity

NPI1598543753

Entity TypeOrganization

Primary Taxonomy207K00000X

Legal Business NameIMMUNO, PA

Location Address23119 IH 10 W BLDG 22San Antonio, TX 78257-1764

Mailing Address23119 Ih 10 W Bldg 22San Antonio, TX 78257-1764 · (210) 899-6856 · Fax (210) 750-3056

Phone(210) 899-6856

Fax(210) 750-3056

Organization SubpartYesParent: Allergy, Asthma And Immunology Specialists Of San Antonio

Authorized OfficialAraceli ElizaldePhysician Owner · (210) 899-6856

Enumeration DateSeptember 19, 2023

Last NPPES UpdateOctober 20, 2026

NPPES CertifiedOctober 20, 2026

✔ NPI 1598543753 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

23119 IH 10 W BLDG 22, San Antonio, TX 78257

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Secondary Practice Location 1

Location 121727 Ih 10 W Ste 104San Antonio, TX 78257-2108 · Phone (210) 899-6856

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Immuno, Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Immuno, PA, which bills Medicare for the services this clinician delivers.

Clinician (1)

Araceli Elizalde, MD

Allergy/Immunology

NPI 1811174873

23119 IH 10 W BLDG 22
San Antonio, TX 78257

(210) 899-6856

✔ PECOSSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Immuno, PA's NPI number?

The NPI number for Immuno, PA is 1598543753. It was assigned to this organization in the NPPES registry on September 19, 2023.

Where is Immuno, PA located?

Immuno, PA is located at 23119 Ih 10 W Bldg 22, San Antonio, TX 78257. The listed phone number is (210) 899-6856.

What is Immuno, PA's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Immuno, PA enrolled in Medicare?

Yes. Immuno, PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Immuno, PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Allergy/Immunology) reassigns their Medicare billing to Immuno, PA. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Immuno, PA accept?

Health plans from Blue Cross and Blue Shield of Texas list Immuno, PA as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Immuno, PA was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.