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MRS. HOLLI TYSHANN SADLER MD
NPI 1477715415
Internal Medicine in Austin, TX

Active since July 01, 2008PECOS Enrolled
601 E 15TH STREET, AUSTIN, TX 78701(512) 324-7000 Get Directions Write a Review

NPPES record last updated: December 8, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mrs. Holli Tyshann Sadler Md NPPES

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

MRS. HOLLI TYSHANN SADLER MD (NPI 1477715415) is an individual internal medicine provider in Austin, Texas, licensed in Texas (N9290) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1477715415
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMRS. HOLLI TYSHANN SADLERCredential: MD
Location Address601 E 15TH STREETAustin, TX 78701
Mailing Address601 E 15th St, Internal Medicine Residency ProgramAustin, TX 78701-1930 · (512) 324-7000
Phone(512) 324-7000
Sole ProprietorNo
Enumeration DateJuly 1, 2008
Last NPPES UpdateDecember 8, 2016
✔ NPI 1477715415 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TX · N9290
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
601 E 15TH STREET, Austin, TX 78701
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Other Identifiers 2

Medicare PINTXB136218TX
Medicaid284769101TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Harbor Health, Sendero Health Plans, Local Nonprofit.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Holli Tyshann Sadler 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 Billing Reassignment

Medicare enrollment records show Holli Sadler reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Seton Family Of Doctors
0.6 mi
Neurological Surgery
1601 TRINITY ST STOP 704
Austin, TX 78712
  • Reassigned Medicare billing, Texas enrollment
  • 1,188 clinicians in this Medicare group
NPI 1588997233 (512) 324-8300

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78701 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
$131.95 typical visit price
range $57.88 – $174.00
Typical copayment $32.98 (range $14.47 – $43.50)
Most-billed visit code 99204
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 Holli Sadler's NPI number?

The NPI number for Holli Sadler is 1477715415. It was assigned to this individual provider in the NPPES registry on July 1, 2008.

Where is Holli Sadler located?

Holli Sadler practices at 601 E 15th Street, Austin, TX 78701. The listed phone number is (512) 324-7000.

What is Holli Sadler's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Holli Sadler enrolled in Medicare?

Yes. Holli Sadler is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Holli Sadler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Holli Sadler reassigns Medicare benefits to Seton Family Of Doctors (Austin, TX). The 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 Holli Sadler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Holli Sadler accept?

Health plans from Blue Cross and Blue Shield of Texas, Harbor Health and Sendero Health Plans, Local Nonprofit list Holli Sadler 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 Holli Sadler was last updated on December 8, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.