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ROBBIE DIAZ
NPI 1447051842
Physician Assistant in San Antonio, TX

Active since March 21, 2025PECOS Enrolled
8201 EWING HALSELL DR, SAN ANTONIO, TX 78229(210) 575-8485(210) 575-8499 Get Directions Write a Review

NPPES record last updated: May 21, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 21, 2025, Mar 21, 2025 (2 updates tracked since 2025).

About Robbie Diaz NPPES

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

ROBBIE DIAZ (NPI 1447051842) is an individual physician assistant in San Antonio, Texas, licensed in Texas (PA19205) and active in the NPI registry since March 2025. He is enrolled in Medicare PECOS, is affiliated with Methodist Hospital, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1447051842
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameROBBIE DIAZ
Location Address8201 EWING HALSELL DRSan Antonio, TX 78229-3707
Mailing Address8201 Ewing Halsell DrSan Antonio, TX 78229-3707 · (210) 575-8485 · Fax (210) 575-8499
Phone(210) 575-8485
Fax(210) 575-8499
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateMarch 21, 2025
Last NPPES UpdateMay 21, 20252 updates tracked since enumeration
NPPES CertifiedMay 21, 2025
✔ NPI 1447051842 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in TX · PA19205
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
8201 EWING HALSELL DR, San Antonio, TX 78229
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Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

PECOS PAC ID5294248142
PECOS Enrollment IDI20250702002976
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Methodist Hospital

Acute Care Hospitals · San Antonio, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450388
Location7700 Floyd Curl DrSan Antonio, TX 78229 · Bexar County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78229 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. ANTHONY DERENCIUS PA-C
Physician Assistant
8201 EWING HALSELL DR
SAN ANTONIO, TX 78229
Bexar County (210) 575-4837
DR. ERIC TREAT MD
Transplant Surgery
8201 EWING HALSELL DR, 2ND FLOOR
SAN ANTONIO, TX 78229
Bexar County (210) 575-8425
DR. LUKE YU-PING SHEN M.D.
Transplant Surgery
8201 EWING HALSELL DR, 2ND FLOOR
SAN ANTONIO, TX 78229
Bexar County (210) 575-4837
MRS. BRITTANY LAUREN GREEN APRN AGACNP-BC
Nurse Practitioner
8201 EWING HALSELL DR
SAN ANTONIO, TX 78229
Bexar County (210) 575-4837
DR. ADAM W BINGAMAN M.D.
Transplant Surgery
8201 EWING HALSELL DR, 2ND FLOOR
SAN ANTONIO, TX 78229
Bexar County (210) 575-8514
MORGAN PAIGE WESNER APRN, AGACNP-BC
Nurse Practitioner
8201 EWING HALSELL DR
SAN ANTONIO, TX 78229
Bexar County (210) 575-8425
KRISTAL ACHEKA
Occupational Therapist
8201 EWING HALSELL DR
SAN ANTONIO, TX 78229
Bexar County (210) 575-4000
MRS. AMY FAY JACKSON RN, FNP-C
Nurse Practitioner
8201 EWING HALSELL DR
SAN ANTONIO, TX 78229
Bexar County (210) 575-8425

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 Robbie Diaz's NPI number?

The NPI number for Robbie Diaz is 1447051842. It was assigned to this individual provider in the NPPES registry on March 21, 2025.

Where is Robbie Diaz located?

Robbie Diaz practices at 8201 Ewing Halsell Dr, San Antonio, TX 78229. The listed phone number is (210) 575-8485.

What is Robbie Diaz's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Robbie Diaz enrolled in Medicare?

Yes. Robbie Diaz is registered in the Medicare PECOS enrollment system.

What insurance does Robbie Diaz accept?

Health plans from Blue Cross and Blue Shield of Texas and Oscar Insurance Company list Robbie Diaz 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.

Is Robbie Diaz affiliated with any hospitals?

According to CMS data, Robbie Diaz is affiliated with Methodist Hospital.

When was this NPI record last updated?

The NPPES record for Robbie Diaz was last updated on May 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.