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KRISTY M. MARSILLO DO
NPI 1508083346
Emergency Medicine in Austin, TX

Active since April 20, 2007PECOS Enrolled
LA COSTA CENTRE 6300 LA CALMA DRIVE, SUITE 200, AUSTIN, TX 78752(512) 452-8533 Get Directions Write a Review

NPPES record last updated: September 18, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Kristy M. Marsillo Do NPPES

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

KRISTY M. MARSILLO DO (NPI 1508083346) is an individual emergency medicine provider in Austin, Texas, licensed in Texas (N3868) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1508083346
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameKRISTY M. MARSILLOCredential: DO
Location AddressLA COSTA CENTRE 6300 LA CALMA DRIVE, SUITE 200Austin, TX 78752-3825
Mailing Address1047 Sunflower TrlAustin, TX 78745-2783 · (716) 465-2533
Phone(512) 452-8533
Sole ProprietorNo
Enumeration DateApril 20, 2007
Last NPPES UpdateSeptember 18, 2013
✔ NPI 1508083346 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in TX · N3868✔ Licensed in OH · 58002101
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.
LA COSTA CENTRE 6300 LA CALMA DRIVE, Austin, TX 78752
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Harbor Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kristy M. Marsillo Do 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 Billing Reassignments

2

Medicare enrollment records show Kristy Marsillo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Travis County Emergency Physicians PA
2.9 mi
Emergency Medicine
1201 W 38TH ST
Austin, TX 78705
  • Reassigned Medicare billing, Texas enrollment
  • 1,511 clinicians in this Medicare group
NPI 1962440933 (330) 493-4443
Austin Critical Care Specialists PA
6.1 mi
Critical Care Medicine
11113 RESEARCH BLVD
Austin, TX 78759
  • Reassigned Medicare billing, Texas enrollment
  • 89 clinicians in this Medicare group
NPI 1447435805 (844) 474-4019

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
26 services25 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78752 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
$89.03 typical visit price
range $57.88 – $174.00
Typical copayment $22.25 (range $14.47 – $43.50)
Most-billed visit code 99203
Established Patient
$101.65 typical visit price
range $18.88 – $142.23
Typical copayment $25.41 (range $4.72 – $35.55)
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.

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 Kristy Marsillo's NPI number?

The NPI number for Kristy Marsillo is 1508083346. It was assigned to this individual provider in the NPPES registry on April 20, 2007.

Where is Kristy Marsillo located?

Kristy Marsillo practices at La Costa Centre 6300 La Calma Drive Suite 200, Austin, TX 78752. The listed phone number is (512) 452-8533.

What is Kristy Marsillo's specialty?

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

Is Kristy Marsillo enrolled in Medicare?

Yes. Kristy Marsillo is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Kristy Marsillo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kristy Marsillo reassigns Medicare benefits to 2 organizations: Travis County Emergency Physicians PA (Austin, TX) and Austin Critical Care Specialists PA (Austin, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Kristy Marsillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kristy Marsillo accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Harbor Health, Molina Healthcare and Sendero Health Plans, Local Nonprofit and 1 other insurer list Kristy Marsillo 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 Kristy Marsillo was last updated on September 18, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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.