Mary Kristine Willis , PA-C
Physician Assistant โข Dallas, TX
1935 Medical District Dr
Dallas, TX 752357701
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on July 22, 2011; this date does not establish years in practice.
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Published CMS data list 26 Original Medicare Part B services in 2020.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020. Published rows only; this is not a quality measure.
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Published Part B service records, 2020:
- 99203 โ New patient outpatient office visit: 26 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2019 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2020). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
Practice Location & Contact Primary Location
1935 Medical District Dr
Dallas, TX 752357701
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 3 distinct additional practice-address records in Coral Gables, FL; Honolulu, HI; Irving, TX. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $1,717 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.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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 $1,396 in 2020
The part of the Medicare-allowed amount that Medicare itself paid in 2020, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021โ2025.
NPI first issued
2011
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, โDoes your provider accept Medicare as full payment?โ
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.
Compared with the same specialty in Dallas and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Mary Willis are from 2020.
1,165 active clinicians are listed under Physician Assistant with a practice address in Dallas, TX (11,008 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Dallas
18% of these 1,165 clinicians have the CMS telehealth indicator.
50.6% of these 1,165 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
CMS data for Medicare Part B services are available for 2020 only.
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Medicare-allowed amount
CMS data for Medicare-allowed amount are available for 2020 only.
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Paid by Medicare
CMS data for Medicare payment amount are available for 2020 only.
Sources: CMS Medicare Physician & Other Practitioners (2020), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 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, 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 |
|---|---|---|---|---|
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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26 | 26 | $275.00 | $66.03 |
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.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-01-29NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Secondary Practice Locations
8300 Esters Blvd Ste 900
Irving, TX 750632233
Phone: 4154244266
475 Biltmore Way Ste 109
Coral Gables, FL 331345724
Phone: 4154244266
500 Ala Moana Blvd Ste 7400
Honolulu, HI 968134902
Phone: 4154244266
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Anesthesiologist Assistant
Physician Assistant
Physician Assistant (Certified)
Physician Assistant
Physician Assistant (Certified)
Urology - Pediatric Urology
Doctor of Medicine (M.D.)
Anesthesiologist Assistant
Master of Public Health, MMSC, AAC
Pediatrics
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Physician Assistant (license number reported to NPPES: FL PA9119067)
NPI status registered as active in NPPES database
Registered at 1935 MEDICAL DISTRICT DR, DALLAS, TX 752357701 (Tel: 2144567000)
Registered at 9408 LANSHIRE DR, DALLAS, TX 752383410 (Tel: 4694178213)
Recorded as MARY WILLIS, P.A.-C
Physician Assistant (license number reported to NPPES: TX PA07332)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Dallas
- Thomas Disanto, PA-C
- Henry Nguyen, PA-C
- Iris Mccolm, PA-C
- Morgan Jones, PA-C
- Deidra Reed, PA-C
- Lara Robinson, PA-C
Mailing Address
9408 Lanshire Dr
Dallas, TX 752383410
Phone: 4694178213