DENISE I. FITZSIMON MD
NPI 1861525636
Pediatrics in Round Rock, TX

Active since March 13, 2007PECOS Enrolled
300 UNIVERSITY BLVD, ROUND ROCK, TX 78665(512) 509-0200 Get Directions Write a Review

NPPES record last updated: November 9, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Denise I. Fitzsimon Md NPPES

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

DENISE I. FITZSIMON MD (NPI 1861525636) is an individual pediatrics provider in Round Rock, Texas, licensed in Texas (H1960) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861525636
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDENISE I. FITZSIMONCredential: MD
Location Address300 UNIVERSITY BLVDRound Rock, TX 78665-1032
Mailing AddressPo Box 844658Dallas, TX 75284-4658
Sole ProprietorNo
Enumeration DateMarch 13, 2007
Last NPPES UpdateNovember 9, 2022
NPPES CertifiedNovember 9, 2022
NPI 1861525636 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses Licensed in TX · H1960 Licensed in AK · 3954 Licensed in OR · MD26536 Licensed in WA · MD00046928
Definition

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

300 UNIVERSITY BLVD, Round Rock, TX 78665

Other Names 1

Former Name (1)Denise I. Fitzsimon-williams Md

Other Identifiers 2

Medicaid278407OR
Medicaid218112OR

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 (PECOS)

Denise I. Fitzsimon 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78665 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.

Ophthalmology
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Physical Therapist
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Speech-Language Pathologist
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Occupational Therapist
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Speech-Language Pathologist
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Physical Therapist
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Physical Therapist
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Speech-Language Pathologist
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665

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 Denise Fitzsimon's NPI number?

The NPI number for Denise Fitzsimon is 1861525636. It was assigned to this individual provider in the NPPES registry on March 13, 2007. The provider is also known as Denise I. Fitzsimon-Williams MD.

Where is Denise Fitzsimon located?

Denise Fitzsimon practices at 300 University Blvd, Round Rock, TX 78665. The listed phone number is (512) 509-0200.

What is Denise Fitzsimon's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Denise Fitzsimon enrolled in Medicare?

Yes. Denise Fitzsimon is registered in the Medicare PECOS enrollment system.

What insurance does Denise Fitzsimon accept?

Health plans from PacificSource Health Plans list Denise Fitzsimon 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 Denise Fitzsimon was last updated on November 9, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.