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DR. MISTI G. ELLSWORTH D.O.
NPI 1376729897
Pediatrics - Pediatric Infectious Diseases in Houston, TX

Active since January 15, 2008PECOS Enrolled
6431 FANNIN ST, SUITE JJL 495, HOUSTON, TX 77030(713) 500-6645(713) 500-5666 Get Directions Write a Review

NPPES record last updated: April 29, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Misti G. Ellsworth D.o. NPPES

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

DR. MISTI G. ELLSWORTH D.O. (NPI 1376729897) is an individual pediatric infectious diseases provider in Houston, Texas, licensed in Texas (N2486) and active in the NPI registry since January 2008. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1376729897
Entity TypeIndividualFemale
Primary Taxonomy2080P0208X
Provider Legal NameDR. MISTI G. ELLSWORTHCredential: D.O.
Location Address6431 FANNIN ST, SUITE JJL 495Houston, TX 77030-1501
Mailing Address6431 Fannin St, Suite Jjl 495Houston, TX 77030-1501 · (713) 500-6645 · Fax (713) 500-5666
Phone(713) 500-6645
Fax(713) 500-5666
Sole ProprietorNo
Enumeration DateJanuary 15, 2008
Last NPPES UpdateApril 29, 2020
NPPES CertifiedApril 29, 2020
✔ NPI 1376729897 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Infectious DiseasesAllopathic & Osteopathic Physicians
Taxonomy Code2080P0208X
License✔ Licensed in TX · N2486
Definition
A pediatrician trained to care for children in the diagnosis, treatment and prevention of infectious diseases. This specialist can apply specific knowledge to affect a better outcome for pediatric infections with complicated courses, underlying diseases that predispose to unusual or severe infections, unclear diagnoses, uncommon diseases and complex or investigational treatments.
Also ListedPediatricsTaxonomy 208000000X · License N2486 (TX)
6431 FANNIN ST, Houston, TX 77030
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections 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)

Dr. Misti G. Ellsworth D.o. 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 Misti Ellsworth reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ut Physicians
0.1 mi
Anesthesiology
6410 FANNIN ST, 1500
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • 3,111 clinicians in this Medicare group
NPI 1033157821 (832) 325-7325
Physicians Referral Service
0.4 mi
Multi-Specialty
1515 HOLCOMBE BLVD
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • 2,675 clinicians in this Medicare group
NPI 1073574810 (713) 792-6161

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

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.

DR. STUART MASON FRASER M.D.
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
6431 FANNIN ST, MSB 3.151
HOUSTON, TX 77030
Harris County (713) 500-5800
AMY ROSSI MD
Emergency Medicine
6431 FANNIN ST, JJL 431
HOUSTON, TX 77030
Harris County (713) 500-7882
MATTHEW KHOA NGUYEN
Student in an Organized Health Care Education/Training Program
6431 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 500-6113
MARY WAYNE PELTIER MD
Student in an Organized Health Care Education/Training Program
6431 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 500-5010
HANNA MAVRIC DO
Student in an Organized Health Care Education/Training Program
6431 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 500-7882
DR. DAVIDE CATTANO MD
Anesthesiology
6431 FANNIN ST, MSB 5.020
HOUSTON, TX 77030
Harris County (713) 500-6235
MICHAEL ANTHONY HOLZMAN
Orthopaedic Surgery
6431 FANNIN ST, SUITE JJL 310
HOUSTON, TX 77030
Harris County (713) 500-5154
SHUBHANGI MEHRA
Student in an Organized Health Care Education/Training Program
6431 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 500-0798

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 Misti Ellsworth's NPI number?

The NPI number for Misti Ellsworth is 1376729897. It was assigned to this individual provider in the NPPES registry on January 15, 2008.

Where is Misti Ellsworth located?

Misti Ellsworth practices at 6431 Fannin St Suite Jjl 495, Houston, TX 77030. The listed phone number is (713) 500-6645.

What is Misti Ellsworth's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.

Is Misti Ellsworth enrolled in Medicare?

Yes. Misti Ellsworth is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Misti Ellsworth's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Misti Ellsworth reassigns Medicare benefits to 2 organizations: Ut Physicians (Houston, TX) and Physicians Referral Service (Houston, 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 Misti Ellsworth's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Misti Ellsworth accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 2 other insurers list Misti Ellsworth 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 Misti Ellsworth was last updated on April 29, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.