DR. MARIO A FIERRO (MD) – Developmental - Behavioral Pediatrics Physician, NPI 1033172374

DR. MARIO A FIERRO (MD) is a healthcare provider. based in San antonio, Texas. specializing in PEDIATRIC MEDICINE. They hold the professional credentials MD. They hold a License No. L5734 (TX). The NPI Number for DR. MARIO A FIERRO (MD) is 1033172374

Main info

Male
29 Years Of Experience
Accepts Medicare Assignment
Name
DR. MARIO A FIERRO (MD)
NPI
1033172374
Phone
(210) 450-7334
Address
10350 BANDERA RD STE 140
Enumeration Date
8 April 2006
Last Update Date
22 March 2023

Doctor Profile

Medical School Name
HARVARD MEDICAL SCHOOL
Secondary Phone
2104506530
Graduation Year
1997 (29 years ago)
PAC ID
5395923619
Group Practice PAC ID
0042128548
Professional Enrollment ID
I20110708000469
Address ID
TX782505616SA10350RDXX301
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness75
Years active:20State licenses:1Digital endpointsOther names

2,256 PEDIATRIC MEDICINE in TX

Provider Addresses for DR. MARIO A FIERRO (MD)

  • 10350 BANDERA RD STE 140

    SAN ANTONIO, TX 782505616

    Phone: (210) 450-7334

    Fax: (210) 450-2124

    Type: Mailing

  • 5430 FREDERICKSBURG RD STE 508

    SAN ANTONIO, TX 782293561

    Phone: (210) 614-5539

    Fax: (210) 614-5548

    Type: Mailing

  • 5414, Holley Oak Lane, Fredericksburg, Spotsylvania County, Virginia, 22407, United States

    SUITE 250

    SAN ANTONIO, TX 782293641

    Phone: (210) 614-5539

    Fax: (210) 614-5548

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 2 Open Payments records for all available years, with a total value of $158.

Total Amount is formed as General ($158) + Research ($0) + Ownership ($0) = $158.

Last reported payment date: 2023-07-13 • Largest payer in this snapshot: Tris Pharma Inc ($120).

Total Amount

$158

General + Research + Ownership

Payments

2

Total payment records

General Amount

$158

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-07-13

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2011-07-08

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20110708000469IPediatric MedicineTXTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 78250)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 0042128548View full group profile

Reviews

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Frequently asked questions

Can I verify DR. MARIO A FIERRO (MD) with an NPI only?
You can start verification with NPI 1033172374 for DR. MARIO A FIERRO (MD), then check state licensing separately.
Is DR. MARIO A FIERRO (MD) still practicing?
DR. MARIO A FIERRO (MD) is currently listed as active in the public NPI registry.
What is DR. MARIO A FIERRO (MD)'s specialty?
The listing groups DR. MARIO A FIERRO (MD) with Developmental - Behavioral Pediatrics Physician. Clinical services aligned with this taxonomy classification.
What address line appears for DR. MARIO A FIERRO (MD)?
DR. MARIO A FIERRO (MD)'s geographic hint is San Antonio, Texas in our summary view.
Is the information about DR. MARIO A FIERRO (MD) up to date?
Data updates when providers file changes in NPPES — treat critical facts as "verify if unsure."

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