Cassandra Pauline Contreras , PHYSICIAN ASSISTANT
Physician Assistant โข Mcallen, TX
5429 N 23rd St Ste C
Mcallen, TX 785044193
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
Cassandra Contreras is listed in NPPES under Physician Assistant.
-
NPI assigned on March 15, 2017; this date does not establish years in practice.
-
Published CMS data list 196 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023. Published rows only; this is not a quality measure.
-
Published Part B service records, 2023:
- 99213 โ Established patient outpatient office visit: 99 service units.
- 99442 โ Telephone medical discussion with physician: 24 service units.
- 99214 โ Established patient outpatient office visit: 21 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2022 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2023). CPT notice
See all 7 records in the table ยท Guide: How to read Medicare Part B data
-
Published CMS data list 124 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
-
Published Part D records, 2024:
- Atorvastatin Calcium โ 30 prescription fills, including refills.
- Metformin Hcl โ 21 prescription fills, including refills.
- Amlodipine Besylate โ 18 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 7 records in the table ยท Guide: How to read Medicare Part D prescriber data
-
Fewer Part D prescriptions than 75% of clinicians listed under Physician Assistant in Mcallen, TX (2024, 70 clinicians with data). Median for this group: 876. Middle half: 126 to 2,175.
Fewer Part D prescriptions than 65% of clinicians listed under Physician Assistant in Texas (2024, 4,882 clinicians with data). Median for this group: 261. Middle half: 73 to 938.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part B services went from 252 in 2020 to 196 in 2023.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2023.
Practice Location & Contact Primary Location
5429 N 23rd St Ste C
Mcallen, TX 785044193
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $13,430 in 2023
The total amount Medicare approved for these services in 2023. 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, 2023.
Paid by Medicare
About $9,464 in 2023
The part of the Medicare-allowed amount that Medicare itself paid in 2023, 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, 2023.
30-day fills
363 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
$1,025 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 โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $224.32 across 5 records.
By nature of payment
- Food and Beverage: $224.32 across 5 records.
Reporting-company totals (3 largest of 4)
- Eli Lilly and Company: $125.00 across 1 record.
- Optinose US, Inc.: $47.05 across 2 records.
- ABBVIE INC.: $34.29 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.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
NPI first issued
2017
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 Mcallen and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 75% of clinicians listed under Physician Assistant in Mcallen, TX (2024, 70 clinicians with data). Median for this group: 876. Middle half: 126 to 2,175.
Fewer Part D prescriptions than 65% 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 80% of clinicians listed under Physician Assistant in Mcallen, TX (2024, 70 clinicians with data). Median for this group: $61,865. Middle half: $4,664 to $358,531.
A lower Part D drug cost than 70% 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.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Cassandra Contreras are from 2023.
144 active clinicians are listed under Physician Assistant with a practice address in Mcallen, TX (11,008 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Mcallen
6.2% of these 144 clinicians have the CMS telehealth indicator.
45.8% of these 144 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.
-
Medicare Part B services
Medicare Part B services decreased 22% from 252 in 2020 to 196 in 2023.
- 2020: 252
- 2022: 27
- 2023: 196
-
Medicare-allowed amount
Medicare-allowed amount varied from year to year: $14,036 in 2020 and $13,430 in 2023.
- 2020: $14,036
- 2022: $2,000
- 2023: $13,430
-
Paid by Medicare
Paid by Medicare decreased 15% from $11,088 in 2020 to $9,464 in 2023.
- 2020: $11,088
- 2022: $1,578
- 2023: $9,464
-
Medicare Part D prescriptions
Medicare Part D prescriptions decreased 81% from 665 in 2020 to 124 in 2024.
- 2020: 665
- 2021: 1,603
- 2022: 2,247
- 2023: 1,983
- 2024: 124
-
30-day fills
30-day fills decreased 74% from 1,405 in 2020 to 363 in 2024.
- 2020: 1,405
- 2021: 3,506
- 2022: 5,115
- 2023: 4,628
- 2024: 363
-
Part D drug cost
Part D drug cost decreased 92% from $13,322 in 2020 to $1,025 in 2024.
- 2020: $13,322
- 2021: $283,638
- 2022: $311,184
- 2023: $280,599
- 2024: $1,025
-
Industry payments (Open Payments)
Industry payments (Open Payments) decreased 84% from $1,423.71 in 2021 to $224.32 in 2025.
- 2021: $1,423.71
- 2022: $722.80
- 2023: $250.95
- 2024: $261.05
- 2025: $224.32
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (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 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
Program year 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $224.32.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Eli Lilly and Company |
Food and Beverage
Cash or cash equivalent
|
ZEPBOUND | General | $125.00 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
QULIPTA | General | $34.29 |
| Optinose US, Inc. |
Food and Beverage
In-kind items and services
|
Xhance | General | $23.83 |
| Optinose US, Inc. |
Food and Beverage
In-kind items and services
|
Xhance | General | $23.22 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
|
Cologuard Collection Kit | General | $17.98 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2019โ2022 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, 2020โ2023; 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 |
|---|---|---|---|---|
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
99 | 54 | $150.00 | $73.62 |
|
99442
Telephone medical discussion with physician, 11-20 minutes
|
24 | 19 | $150.00 | $73.62 |
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
21 | 18 | $200.00 | $104.32 |
|
99497
Advance care planning, first 30 minutes
|
19 | 18 | $200.00 | $67.73 |
|
G0442
Annual alcohol misuse screening, 5 to 15 minutes
|
11 | 11 | $40.00 | $14.95 |
|
G0444
Annual depression screening, 5 to 15 minutes
|
11 | 11 | $40.00 | $14.95 |
|
G0513
Prolonged preventive service(s) (beyond the typical service time of the primary procedure), in the office or other outpatient setting requiring direct patient contact beyond the usual service; first 30 minutes (list separately in addition to code for preve
|
11 | 11 | $100.00 | $51.64 |
Source: CMS Part B by Provider and Service, 2023; 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 |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 30 | 2,700 | $237.97 | 21 |
| Metformin Hcl | Metformin Hcl | 21 | 1,890 | $234.07 | 12 |
| Amlodipine Besylate | Amlodipine Besylate | 18 | 1,620 | $67.89 | 12 |
| Lisinopril | Lisinopril | 17 | 1,350 | $59.32 | 11 |
| Pioglitazone Hcl | Pioglitazone Hcl | 14 | 1,230 | $119.56 | โ |
| Levothyroxine Sodium | Levothyroxine Sodium | 12 | 1,080 | $161.19 | โ |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 12 | 1,020 | $144.62 | โ |
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: 2026-01-14NUCC 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.
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 (Board Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Recorded as CASSANDRA CONTRERAS, PHYSICIAN ASSISTANT
Registered at 5429 N 23RD ST STE C, MCALLEN, TX 785044193 (Tel: 9564771463)
Registered at 5429 N 23RD ST STE C, MCALLEN, TX 785044193 (Tel: 9564771463)
Registered at 1512 E GRIFFIN PKWY STE 2, MISSION, TX 785722422 (Tel: 9565197088)
Registered at 1512 E GRIFFIN PKWY STE 2, MISSION, TX 785722422 (Tel: 9565197088)
Registered at 2961 MOSSROCK, SAN ANTONIO, TX 782305119 (Tel: 2107314800)
Physician Assistant (license number reported to NPPES: TX PA11158)
Registered at 510 MED CT STE 210, SAN ANTONIO, TX 78258 (Tel: 2104944290)
Registered at 510 MED CT STE 210, SAN ANTONIO, TX 782583484 (Tel: 2104944290)
Recorded as CASSANDRA CUELLAR, PHYSICIAN ASSISTANT
Physician Assistant (license number reported to NPPES: TX 11158)
NPI status registered as active in NPPES database
Registered at 5201 N 10TH ST, MCALLEN, TX 785042708 (Tel: 9566315411)
Registered at 5201 N 10TH ST, MCALLEN, TX 785042708 (Tel: 9566315411)
Recorded as CASSANDRA CUELLAR
Physician Assistant (license number reported to NPPES: TX TENPPA)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Mcallen
- Gary Hamilton, PA
- Roel Contreras
- Paloma Powell, PA
- Scott Hibbard, PA-C
- Cesar Garcia, PA-C
- Javier Suarez Jaramillo, PA-C
Mailing Address
5429 N 23rd St Ste C
Mcallen, TX 785044193
Phone: 9564771463