ABBAS MEHDI SIZAR MD
NPI 1497458624
Emergency Medicine in San Antonio, TX

Active since March 27, 2023PECOS EnrolledAccepts Medicare Assignment
4502 MEDICAL DR, SAN ANTONIO, TX 78229(210) 358-4000 Get Directions Write a Review

NPPES record last updated: August 25, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 3, 2023, Mar 27, 2023 (2 updates tracked since 2023).

About Abbas Mehdi Sizar Md NPPES

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

ABBAS MEHDI SIZAR MD (NPI 1497458624) is an individual emergency medicine provider in San Antonio, Texas, licensed in Texas (W0731) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS, is affiliated with Otto Kaiser Memorial Hospital, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1497458624
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameABBAS MEHDI SIZARCredential: MD
Location Address4502 MEDICAL DRSan Antonio, TX 78229-4492
Mailing Address4502 Medical DrSan Antonio, TX 78229-4492 · (210) 358-4000
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateMarch 27, 2023
Last NPPES UpdateAugust 25, 20252 updates tracked since enumeration
NPPES CertifiedAugust 25, 2025
NPI 1497458624 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License Licensed in TX · W0731
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
4502 MEDICAL DR, San Antonio, TX 78229

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Abbas Mehdi Sizar Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4486158961
PECOS Enrollment IDI20250917004686
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.

Otto Kaiser Memorial Hospital

Critical Access Hospitals · Kenedy, TX
OwnershipGovernment - Hospital District or Authority
CMS Certification Number451364
Location3349 S Highway 181Kenedy, TX 78119 · Karnes County
Emergency services

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
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
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.

Internal Medicine (Cardiovascular Disease)
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Student in an Organized Health Care Education/Training Program
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Student in an Organized Health Care Education/Training Program
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Physical Therapy Assistant
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Nurse Anesthetist, Certified Registered
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Nurse Anesthetist, Certified Registered
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Pharmacist
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Hospitalist
4502 MEDICAL DR
SAN ANTONIO, TX 78229

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 Abbas Sizar's NPI number?

The NPI number for Abbas Sizar is 1497458624. It was assigned to this individual provider in the NPPES registry on March 27, 2023.

Where is Abbas Sizar located?

Abbas Sizar practices at 4502 Medical Dr, San Antonio, TX 78229. The listed phone number is (210) 358-4000.

What is Abbas Sizar's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Abbas Sizar enrolled in Medicare?

Yes. Abbas Sizar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Abbas Sizar accept?

Health plans from Blue Cross and Blue Shield of Texas list Abbas Sizar 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 Abbas Sizar affiliated with any hospitals?

According to CMS data, Abbas Sizar is affiliated with Otto Kaiser Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Abbas Sizar was last updated on August 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.