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

DR. GEORGE V MAZARIEGOS MD
NPI 1497729339
Specialist in Pittsburgh, PA

Active since February 16, 2006PECOS Enrolled
77.5/100
CMS Quality Rating
3705 5TH AVE, CHILDREN'S HOSPITAL, 48485, PITTSBURGH, PA 15213(412) 692-6110 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. George V Mazariegos Md NPPES

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

DR. GEORGE V MAZARIEGOS MD (NPI 1497729339) is an individual specialist in Pittsburgh, Pennsylvania, licensed in Pennsylvania (MD043996L) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1497729339
Entity TypeIndividualMale
Primary Taxonomy174400000X
Provider Legal NameDR. GEORGE V MAZARIEGOSCredential: MD
Location Address3705 5TH AVE, CHILDREN'S HOSPITAL, 48485Pittsburgh, PA 15213-2524
Mailing Address3705 5th Ave, Children's Hospital, 48485Pittsburgh, PA 15213-2524 · (412) 692-6110
Phone(412) 692-6110
Sole ProprietorNo
Enumeration DateFebruary 16, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1497729339 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in PA · MD043996L
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
3705 5TH AVE, Pittsburgh, PA 15213
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. George V Mazariegos Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

77.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality68.61
Promoting Interoperability100
Improvement Activities40
Cost56.4

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers12 claims750 services$0.22 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
2 suppliers12 claims13 services$9.87 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

AMISHA SHAH
Radiology (Diagnostic Radiology)
3705 5TH AVE, CHP MT 3950
PITTSBURGH, PA 15213
Allegheny County (412) 647-2273
IGOR SEMENOV
Anesthesiology
3705 5TH AVE, ONE CHILDREN'S HOSPITAL DRIVE
PITTSBURGH, PA 15213
Allegheny County (412) 692-5260
KRISTYN LOWERY
Physician Assistant
3705 5TH AVE, SUITE B-258
PITTSBURGH, PA 15213
Allegheny County (412) 692-3483
DR. BARBARA WENDEBORN BRANDOM MD
Specialist
3705 5TH AVE
PITTSBURGH, PA 15213
Allegheny County (412) 692-6973
JUDITH MARTIN
Specialist
3705 5TH AVE, ROOM 4B385
PITTSBURGH, PA 15213
Allegheny County (412) 692-7885
DR. BENJAMIN SHNEIDER M.D.
Pediatrics (Pediatric Gastroenterology)
3705 5TH AVE, PEDIATRIC GASTROENTEROLOGY
PITTSBURGH, PA 15213
Allegheny County (412) 692-5180
AMY KELLY
Radiology (Diagnostic Radiology)
3705 5TH AVE, CHP MT SUITE 3950
PITTSBURGH, PA 15213
Allegheny County (412) 647-2273
DR. RICHARD A ORR MD
Specialist
3705 5TH AVE
PITTSBURGH, PA 15213
Allegheny County (412) 692-5164

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 George Mazariegos's NPI number?

The NPI number for George Mazariegos is 1497729339. It was assigned to this individual provider in the NPPES registry on February 16, 2006.

Where is George Mazariegos located?

George Mazariegos practices at 3705 5th Ave Children's Hospital, 48485, Pittsburgh, PA 15213. The listed phone number is (412) 692-6110.

What is George Mazariegos's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is George Mazariegos enrolled in Medicare?

Yes. George Mazariegos is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for George Mazariegos was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 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.