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Jennifer Lynn Williams , NP

Nurse Practitioner โ€ข Austin, TX

Active NPI 1558833129 Individual Practitioner Female Practitioner
Practice location in NPPES

6500 N Mo Pac Expy Ste 200
Austin, TX 787313282

Call 5124588400 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

6500 N Mo Pac Expy Ste 200

Austin, TX 787313282

Telephone 5124588400
Fax 5124588593
Organization at the Same NPPES Address or Phone
Texas Diabetes And Endocrinology Pa Facility NPI 1083888523

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Medicare-allowed amount

About $5,622 in 2020

The total amount Medicare approved for these services in 2020. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2020.

Paid by Medicare

About $2,897 in 2020

The part of the Medicare-allowed amount that Medicare itself paid in 2020, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2020.

30-day fills

135 standardized 30-day fills in 2021

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$44,675 in 2021

The total cost of these prescriptions in 2021, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2021.

Open Payments general payments, program year 2025

All general payments: $260.97 across 13 records.

By nature of payment

  • Food and Beverage: $260.97 across 13 records.

Reporting-company totals

  • ABBVIE INC.: $241.41 across 12 records.
  • Abbott Laboratories: $19.56 across 1 record.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

NPI first issued

2018

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Compared with the same specialty in Austin and Texas

Billing and prescribing volume is not a quality rating.

Medicare Part B

Comparisons use 2024 data. The latest CMS data for Jennifer Williams are from 2020.

Medicare Part D

Comparisons use 2024 data. The latest CMS data for Jennifer Williams are from 2021.

227 active clinicians are listed under Nurse Practitioner with a practice address in Austin, TX (4,835 in Texas).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Austin

10.6% of these 227 clinicians have the CMS telehealth indicator.

42.7% of these 227 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2020), CMS Medicare Part D Prescribers (2021), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): 13 records totaling $260.97.

Manufacturer Payment Nature Product Type Amount ($)
ABBVIE INC.
Food and Beverage
In-kind items and services
โ€” General $63.92
ABBVIE INC.
Food and Beverage
In-kind items and services
BOTOX General $27.79
ABBVIE INC.
Food and Beverage
In-kind items and services
BOTOX General $25.00
ABBVIE INC.
Food and Beverage
In-kind items and services
โ€” General $22.93
ABBVIE INC.
Food and Beverage
In-kind items and services
โ€” General $21.58
ABBVIE INC.
Food and Beverage
In-kind items and services
โ€” General $20.11
Abbott Laboratories
Food and Beverage
In-kind items and services
I-STAT General $19.56
ABBVIE INC.
Food and Beverage
In-kind items and services
BOTOX General $16.92
ABBVIE INC.
Food and Beverage
In-kind items and services
BOTOX General $16.37
ABBVIE INC.
Food and Beverage
In-kind items and services
โ€” General $11.52
ABBVIE INC.
Food and Beverage
In-kind items and services
โ€” General $6.97
ABBVIE INC.
Food and Beverage
In-kind items and services
BOTOX General $4.44
ABBVIE INC.
Food and Beverage
In-kind items and services
BOTOX General $3.86

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2020.

CMS Part B ยท Data Year 2020
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018โ€“2019 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2019โ€“2020; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
61 54 $240.00 $92.17

Source: CMS Part B by Provider and Service, 2020; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2021.

CMS Part D ยท Data Year 2021
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Trulicity Dulaglutide 20 840 $24,036.88 โ€”
Metformin Hcl Er Metformin Hcl 18 900 $201.27 โ€”
Jardiance Empagliflozin 18 1,094 $20,320.87 โ€”
Atorvastatin Calcium Atorvastatin Calcium 13 1,170 $116.45 โ€”

Source: CMS Part D by Provider and Drug, 2021; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES TX AP138321

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Texas Medical Board.
Look Up on State Board Site

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

33 listed
Carmen Addington , CNS

Nurse Practitioner - Family

NPI 1639625965

Clinical Nurse Specialist

Dr. Thomas Blevins , MD

Internal Medicine - Endocrinology, Diabetes & Metabolism

NPI 1114992088

Doctor of Medicine (M.D.)

Amanda Bonazzi

Clinical Nurse Specialist - Adult Health

NPI 1205009362
Dr. Luis Casaubon , MD

Internal Medicine - Endocrinology, Diabetes & Metabolism

NPI 1447225495

Doctor of Medicine (M.D.)

Dr. Tira Chaicha-Brom , MD

Internal Medicine - Endocrinology, Diabetes & Metabolism

NPI 1548434756

Doctor of Medicine (M.D.)

Tracy Chan , NP

Nurse Practitioner

NPI 1962989210

Nurse Practitioner

Career & Practice History

NPI enumerated December 20, 2018.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2019 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1558833129
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: December 20, 2018
Last Update: December 20, 2018
Sole Proprietor: No

Other Nurse Practitioners in Austin

All Nurse Practitioners in Austin

Mailing Address

110 Deer Ridge Dr

Round Rock, TX 786815514

Phone: 5124588400

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.