Shane Eugene Mass , PA-C
Physician Assistant • San Antonio, TX
22135 Ih 10 W
San Antonio, TX 782571621
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 16, 2020; this date does not establish years in practice.
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Published CMS data list 103 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:
- 99284 — Emergency department visit with moderate level of medical decision making: 41 service units.
- 99285 — Emergency department visit with high level of medical decision making: 39 service units.
- 99283 — Emergency department visit with low level of medical decision making: 23 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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Published CMS data list 43 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Ibuprofen — 21 prescription fills, including refills.
- Cyclobenzaprine Hcl — 11 prescription fills, including refills.
- Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) — 11 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 70% 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 65% 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 88 in 2020 to 103 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
22135 Ih 10 W
San Antonio, TX 782571621
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in New Braunfels, TX. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 3 distinct group names: Ies Er Oklahoma Llc; Ies Obs Colorado Pllc; Presbyterian Healthcare Services. 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
2020
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
103 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 $10,647 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 $8,338 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.
30-day fills
43 standardized 30-day fills in 2024
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
$259 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
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 – by Provider and Drug, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021–2025.
Years since graduation
6 years (graduated 2020)
CMS Doctors and Clinicians data list 2020 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
2020
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)
Shane Mass 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 Shane Mass 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 70% 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 65% 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 65% 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 60% 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 60% 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.
Close to the middle for 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.
Medicare Part D prescriptions
Fewer Part D prescriptions than 85% of clinicians listed under Physician Assistant in San Antonio, TX (2024, 374 clinicians with data). Median for this group: 316. Middle half: 95 to 1,211.
Fewer Part D prescriptions than 80% of clinicians listed under Physician Assistant in Texas (2024, 4,882 clinicians with data). Median for this group: 261. Middle half: 73 to 938.
Part D drug cost
A lower Part D drug cost than 90% of clinicians listed under Physician Assistant in San Antonio, TX (2024, 374 clinicians with data). Median for this group: $12,426. Middle half: $1,117 to $100,545.
A lower Part D drug cost than 85% of clinicians listed under Physician Assistant in Texas (2024, 4,882 clinicians with data). Median for this group: $7,999. Middle half: $749 to $103,240.
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 increased 17% from 88 in 2020 to 103 in 2024.
- 2020: 88
- 2022: 14
- 2023: 96
- 2024: 103
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Medicare-allowed amount
Medicare-allowed amount increased 495% from $1,791 in 2020 to $10,647 in 2024.
- 2020: $1,791
- 2022: $2,173
- 2023: $10,881
- 2024: $10,647
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Paid by Medicare
Paid by Medicare increased 366% from $1,791 in 2020 to $8,338 in 2024.
- 2020: $1,791
- 2022: $1,732
- 2023: $8,445
- 2024: $8,338
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 53% from 92 in 2022 to 43 in 2024.
- 2022: 92
- 2023: 11
- 2024: 43
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30-day fills
30-day fills decreased 53% from 92 in 2022 to 43 in 2024.
- 2022: 92
- 2023: 11
- 2024: 43
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Part D drug cost
Part D drug cost went from $785 in 2022 to $259 in 2024.
- 2022: $785
- 2023: $38
- 2024: $259
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2019–2023 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, 2020–2024; 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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99284
Emergency department visit with moderate level of medical decision making
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41 | 40 | $872.68 | $96.46 |
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99285
Emergency department visit with high level of medical decision making
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39 | 36 | $1429.64 | $138.01 |
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99283
Emergency department visit with low level of medical decision making
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23 | 22 | $466.63 | $56.93 |
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.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Ibuprofen | Ibuprofen | 21 | 164 | $52.18 | 21 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 11 | 77 | $36.07 | — |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 11 | 73 | $170.53 | 11 |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-09-18NUCC 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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20251230000556
NM
2668891417
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
Ies Er Oklahoma Llc
6161 S Yale Ave, Tulsa, OK 741361902
Phone: 9184942200
Presbyterian Healthcare Services
3436 Isleta Blvd Sw, Albuquerque, NM 871055837
Phone: 5054627777
Ies Obs Colorado Pllc
1375 E 19th Ave, Denver, CO 802181114
Phone: 3038122000
Secondary Practice Locations
1751 Medical Way
New Braunfels, TX 781324521
Phone: 8306270911
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Family
Nurse Practitioner - Family
FNPNP
Career & Practice History
NPI enumerated July 16, 2020.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from August 2020 to August 2026.
NPI Administrative Meta
Other Physician Assistants in San Antonio
- Julie Koo, PA-C
- Robert Foulk, PA
- Marissa Gulbis, PA-C
- Tanya Perez, PA-C
- Clarissa Richard, PA-C
- Addison Marshall
Mailing Address
22135 Ih 10 W
San Antonio, TX 782571621
Phone: 4025781892