Lisa M Garrison , PA-C
Physician Assistant • San Antonio, TX
4410 Medical Dr Ste 540
San Antonio, TX 782293755
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 June 15, 2006; this date does not establish years in practice.
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Published CMS data list 50 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 33268 — Exclusion of appendage of left upper chamber of heart performed during other procedure on chest: 18 service units.
- 33508 — Harvest of vein using an endoscope: 16 service units.
- 33533 — Coronary artery bypass using artery graft, 1 graft: 16 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Fewer Medicare Part B services than 85% of clinicians listed under Physician Assistant in San Antonio, TX (2024, 316 clinicians with data). Median for this group: 225. Middle half: 93 to 571.
Fewer Medicare Part B services than 80% of clinicians listed under Physician Assistant in Texas (2024, 4,400 clinicians with data). Median for this group: 211. Middle half: 76 to 593.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 105 in 2017 to 50 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2024.
Practice Location & Contact Primary Location
4410 Medical Dr Ste 540
San Antonio, TX 782293755
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Cardiology Clinic Of San Antonio, Pllc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2001
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
31 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $3,694 in 2024
The total amount Medicare approved for these services in 2024. 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 – by Provider and Service, 2024.
Paid by Medicare
About $2,945 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, 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 – by Provider and Service, 2024.
Open Payments general payments, program year 2025
All general payments: $2,439.49 across 52 records.
By nature of payment
- Food and Beverage: $2,439.49 across 52 records.
Reporting-company totals (3 largest of 8)
- AtriCure, Inc.: $1,132.27 across 27 records.
- ABIOMED: $472.36 across 7 records.
- Medtronic, Inc.: $259.40 across 5 records.
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.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
25 years (graduated 2001)
CMS Doctors and Clinicians data list 2001 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2006
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.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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, “Does your provider accept Medicare as full payment?”
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.
Enrolled in Medicare (PECOS)
Lisa Garrison has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Lisa Garrison as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in San Antonio and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 85% of clinicians listed under Physician Assistant in San Antonio, TX (2024, 316 clinicians with data). Median for this group: 225. Middle half: 93 to 571.
Fewer Medicare Part B services than 80% of clinicians listed under Physician Assistant in Texas (2024, 4,400 clinicians with data). Median for this group: 211. Middle half: 76 to 593.
Medicare-allowed amount
A lower Medicare-allowed amount than 85% of clinicians listed under Physician Assistant in San Antonio, TX (2024, 316 clinicians with data). Median for this group: $15,261. Middle half: $7,606 to $33,983.
A lower Medicare-allowed amount than 80% of clinicians listed under Physician Assistant in Texas (2024, 4,400 clinicians with data). Median for this group: $15,434. Middle half: $6,111 to $35,691.
Paid by Medicare
A lower Medicare payment amount than 85% of clinicians listed under Physician Assistant in San Antonio, TX (2024, 316 clinicians with data). Median for this group: $10,961. Middle half: $5,253 to $24,121.
A lower Medicare payment amount than 80% of clinicians listed under Physician Assistant in Texas (2024, 4,400 clinicians with data). Median for this group: $11,276. Middle half: $4,395 to $26,238.
874 active clinicians are listed under Physician Assistant with a practice address in San Antonio, TX (11,008 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in San Antonio
13.2% of these 874 clinicians have the CMS telehealth indicator.
47.7% of these 874 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
Medicare Part B services decreased 52% from 105 in 2017 to 50 in 2024.
- 2017: 105
- 2023: 26
- 2024: 50
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Medicare-allowed amount
Medicare-allowed amount decreased 73% from $13,923 in 2017 to $3,694 in 2024.
- 2017: $13,923
- 2023: $3,140
- 2024: $3,694
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Paid by Medicare
Paid by Medicare decreased 73% from $11,109 in 2017 to $2,945 in 2024.
- 2017: $11,109
- 2023: $2,507
- 2024: $2,945
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 77% from $10,618.93 in 2021 to $2,439.49 in 2025.
- 2021: $10,618.93
- 2022: $10,993.84
- 2023: $5,746.36
- 2024: $5,460.27
- 2025: $2,439.49
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · 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
Program year 2025 (payments made January 1 – December 31, 2025): 52 records totaling $2,439.49.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| AtriCure, Inc. |
Food and Beverage
In-kind items and services
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AtriCure cryoICE Cryoablation System (CRYO2) | General | $167.89 |
| Davol Inc. |
Food and Beverage
In-kind items and services
|
ARISTA | General | $166.67 |
| ABIOMED |
Food and Beverage
In-kind items and services
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— | General | $149.87 |
| ABIOMED |
Food and Beverage
In-kind items and services
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— | General | $149.84 |
| AtriCure, Inc. |
Food and Beverage
In-kind items and services
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AtriCure cryoICE Cryoablation System (CRYO2) | General | $139.20 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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COREVALVE EVOLUT R | General | $116.71 |
| AtriCure, Inc. |
Food and Beverage
In-kind items and services
|
AtriCure cryoICE Cryoablation System (CRYO2) | General | $115.47 |
| AtriCure, Inc. |
Food and Beverage
In-kind items and services
|
AtriCure cryoICE Cryoablation System (CRYO2) | General | $103.07 |
| AtriCure, Inc. |
Food and Beverage
In-kind items and services
|
AtriCure cryoICE Cryoablation System (CRYO2) | General | $96.20 |
| Getinge USA Sales, LLC |
Food and Beverage
In-kind items and services
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VASOVIEW HEMOPRO 2 | General | $58.35 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
COREVALVE EVOLUT R | General | $56.71 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
EPIC | General | $54.50 |
| ABIOMED |
Food and Beverage
In-kind items and services
|
— | General | $46.95 |
| Getinge USA Sales, LLC |
Food and Beverage
In-kind items and services
|
VASOVIEW HEMOPRO 2 | General | $45.10 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
COREVALVE EVOLUT R | General | $42.82 |
| LeMaitre Vascular, Inc. |
Food and Beverage
Cash or cash equivalent
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RESTOREFLOW | General | $41.71 |
| LeMaitre Vascular, Inc. |
Food and Beverage
Cash or cash equivalent
|
RESTOREFLOW | General | $39.21 |
| AtriCure, Inc. |
Food and Beverage
In-kind items and services
|
AtriCure cryoICE Cryoablation System (CRYO2) | General | $39.07 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
COREVALVE EVOLUT R | General | $38.62 |
| ABIOMED |
Food and Beverage
In-kind items and services
|
— | General | $37.04 |
| AtriCure, Inc. |
Food and Beverage
In-kind items and services
|
AtriCure cryoICE Cryoablation System (CRYO2) | General | $36.03 |
| ABIOMED |
Food and Beverage
In-kind items and services
|
— | General | $35.26 |
| Getinge USA Sales, LLC |
Food and Beverage
In-kind items and services
|
VASOVIEW HEMOPRO 2 | General | $35.26 |
| AtriCure, Inc. |
Food and Beverage
In-kind items and services
|
SYNERGY ABLATION SYSTEM | General | $35.18 |
| AtriCure, Inc. |
Food and Beverage
In-kind items and services
|
AtriCure cryoICE Cryoablation System (CRYO2) | General | $34.59 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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 – by Provider and Service data, 2017–2024; 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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33268
Exclusion of appendage of left upper chamber of heart performed during other procedure on chest
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18 | 18 | $382.89 | $16.57 |
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33508
Harvest of vein using an endoscope
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16 | 16 | $48.06 | $2.06 |
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33533
Coronary artery bypass using artery graft, 1 graft
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16 | 16 | $5508.13 | $210.15 |
Source: CMS Part B by Provider and Service, 2024; 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
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.
NUCC Taxonomy Code: 363AS0400X
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20040925000065
TX
9032188289
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Cardiology Clinic Of San Antonio, Pllc
6700 W Interstate 10, San Antonio, TX 782012009
Phone: 2107366700
Cardiology Clinic Of San Antonio, Pllc
7700 Floyd Curl Dr, San Antonio, TX 782293902
Phone: 2105754000
Cardiology Clinic Of San Antonio, Pllc
1310 Mccullough Ave, San Antonio, TX 782125601
Phone: 2102082200
Cardiology Clinic Of San Antonio, Pllc
12412 Judson Rd, Live Oak, TX 782333255
Phone: 2106504949
Cardiology Clinic Of San Antonio, Pllc
1139 E Sonterra Blvd, San Antonio, TX 782584347
Phone: 2106382000
Cardiology Clinic Of San Antonio, Pllc
4411 Medical Dr, San Antonio, TX 782293824
Cardiology Clinic Of San Antonio, Pllc
1139 E Sonterra Blvd, San Antonio, TX 782584347
Phone: 2104906000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Pediatrics - Pediatric Gastroenterology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 4410 MEDICAL DR STE 540, SAN ANTONIO, TX 782293755 (Tel: 2105756240)
Registered at 4410 MEDICAL DR STE 540, SAN ANTONIO, TX 782293755 (Tel: 2105756240)
NPI status registered as active in NPPES database
Registered at 4330 MEDICAL DR, SUITE 325, SAN ANTONIO, TX 782293342 (Tel: 2106157700)
Registered at 4330 MEDICAL DR, SUITE 325, SAN ANTONIO, TX 782293342 (Tel: 2106157700)
Recorded as LISA GARRISON, PA-C
Physician Assistant (license number reported to NPPES: TX PA04146)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in San Antonio
- Miranda Willette, PA-C
- Madeline Kofskey, PA-C
- Megan Delapaz, PA-C
- Edward Russell, PA
- Benjamin Rhame, PA-C
- Gillian Crow, PA
Mailing Address
4410 Medical Dr Ste 540
San Antonio, TX 782293755
Phone: 2105756240