Abby Kathryn Schlumpf , MPAS, PA-C
Physician Assistant β’ Amarillo, TX
9092 Westgate Pkwy W
Amarillo, TX 791242441
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 January 5, 2022; this date does not establish years in practice.
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Published CMS data list 3,060 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Hydroxychloroquine Sulfate β 358 prescription fills, including refills.
- Methotrexate (Methotrexate Sodium) β 227 prescription fills, including refills.
- Pregabalin β 202 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 53 records in the table Β· Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 80% of clinicians listed under Physician Assistant in Amarillo, TX (2024, 29 clinicians with data). Median for this group: 273. Middle half: 88 to 2,021.
More Part D prescriptions than 90% 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 β by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 1,245 in 2023 to 3,060 in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023β2024.
Practice Location & Contact Primary Location
9092 Westgate Pkwy W
Amarillo, TX 791242441
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.
30-day fills
4,863 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
$1,393,257 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 β by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $5,621.06 across 182 records.
By nature of payment (3 largest of 4)
- Food and Beverage: $3,840.22 across 177 records.
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program: $1,700.00 across 3 records.
- Education: $56.99 across 1 record.
Reporting-company totals (3 largest of 24)
- AstraZeneca Pharmaceuticals LP: $1,894.90 across 7 records.
- ABBVIE INC.: $514.35 across 22 records.
- Amgen Inc.: $479.09 across 28 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).
NPI first issued
2022
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, βDoes your provider accept Medicare as full payment?β
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)
Abby Schlumpf 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 Abby Schlumpf 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 Amarillo and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 80% of clinicians listed under Physician Assistant in Amarillo, TX (2024, 29 clinicians with data). Median for this group: 273. Middle half: 88 to 2,021.
More Part D prescriptions than 90% 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 higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Amarillo, TX (2024, 29 clinicians with data). Median for this group: $5,383. Middle half: $310 to $198,274.
A higher Part D drug cost than 95% 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.
60 active clinicians are listed under Physician Assistant with a practice address in Amarillo, TX (11,008 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Amarillo
8.3% of these 60 clinicians have the CMS telehealth indicator.
53.3% of these 60 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 D prescriptions
Medicare Part D prescriptions increased 146% from 1,245 in 2023 to 3,060 in 2024.
- 2023: 1,245
- 2024: 3,060
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30-day fills
30-day fills increased 122% from 2,190 in 2023 to 4,863 in 2024.
- 2023: 2,190
- 2024: 4,863
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Part D drug cost
Part D drug cost increased 304% from $344,927 in 2023 to $1,393,257 in 2024.
- 2023: $344,927
- 2024: $1,393,257
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $30.36 in 2022 to $5,621.06 in 2025.
- 2022: $30.36
- 2023: $862.45
- 2024: $1,939.41
- 2025: $5,621.06
Sources: 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 Β· 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 β December 31, 2025): 182 records totaling $5,621.06.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| AstraZeneca Pharmaceuticals LP |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
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β | General | $850.00 |
| AstraZeneca Pharmaceuticals LP |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
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β | General | $510.00 |
| AstraZeneca Pharmaceuticals LP |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
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β | General | $340.00 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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β | General | $125.00 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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BENLYSTA | General | $125.00 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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SAPHNELO | General | $86.90 |
| Janssen Pharmaceuticals, Inc |
Education
In-kind items and services
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TREMFYA | General | $56.99 |
| Bristol Myers Squibb Company |
Food and Beverage
Cash or cash equivalent
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ORENCIA | General | $47.36 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
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OPSUMIT | General | $42.06 |
| Mallinckrodt Hospital Products Inc. |
Food and Beverage
In-kind items and services
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ACTHAR | General | $38.88 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
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TREMFYA | General | $37.62 |
| Mallinckrodt Hospital Products Inc. |
Food and Beverage
In-kind items and services
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ACTHAR | General | $37.57 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
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TREMFYA | General | $35.89 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $35.17 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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SAPHNELO | General | $33.64 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $33.16 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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STRENSIQ | General | $32.92 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $32.82 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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COSENTYX | General | $32.51 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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RINVOQ | General | $32.25 |
| Mallinckrodt Hospital Products Inc. |
Food and Beverage
In-kind items and services
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ACTHAR | General | $32.20 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
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TREMFYA | General | $31.13 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
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KEVZARA | General | $31.07 |
| TerSera Therapeutics LLC |
Food and Beverage
In-kind items and services
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Quzyttir | General | $29.70 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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COSENTYX | General | $29.66 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
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 |
|---|---|---|---|---|---|
| Hydroxychloroquine Sulfate | Hydroxychloroquine Sulfate | 358 | 24,038 | $11,416.98 | 123 |
| Methotrexate | Methotrexate Sodium | 227 | 14,034 | $5,779.13 | 78 |
| Pregabalin | Pregabalin | 202 | 6,640 | $4,698.82 | 59 |
| Leflunomide | Leflunomide | 200 | 13,560 | $8,957.65 | 67 |
| Gabapentin | Gabapentin | 174 | 6,977 | $1,791.57 | 51 |
| Tramadol Hcl | Tramadol Hcl | 161 | 4,366 | $1,633.30 | 70 |
| Duloxetine Hcl | Duloxetine Hcl | 103 | 4,530 | $1,157.89 | 25 |
| Meloxicam | Meloxicam | 101 | 4,201 | $466.96 | 22 |
| Prednisone | Prednisone | 99 | 2,771 | $261.81 | 42 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 88 | 2,963 | $1,248.55 | 21 |
| Alendronate Sodium | Alendronate Sodium | 86 | 4,518 | $439.06 | 24 |
| Tizanidine Hcl | Tizanidine Hcl | 81 | 2,895 | $1,008.05 | 22 |
| Celecoxib | Celecoxib | 81 | 3,047 | $1,687.25 | 30 |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 74 | 2,141 | $1,635.08 | 25 |
| Baclofen | Baclofen | 66 | 2,393 | $1,733.28 | 21 |
| Orencia Clickject | Abatacept | 57 | 1,596 | $351,200.91 | β |
| Rinvoq | Upadacitinib | 57 | 1,710 | $377,468.42 | β |
| Folic Acid | Folic Acid | 56 | 5,080 | $625.04 | 25 |
| Bupropion Xl | Bupropion Hcl | 52 | 2,700 | $818.15 | 17 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 50 | 2,204 | $1,451.70 | 17 |
| Sulfasalazine | Sulfasalazine | 47 | 3,460 | $1,467.24 | 17 |
| Methylprednisolone | Methylprednisolone | 45 | 344 | $378.95 | 40 |
| Allopurinol | Allopurinol | 41 | 2,708 | $343.11 | 13 |
| Famotidine | Famotidine | 36 | 2,940 | $526.63 | 14 |
| Mycophenolate Mofetil | Mycophenolate Mofetil | 35 | 1,695 | $4,262.42 | 14 |
(top 25 shown)
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: 2025-09-25NUCC 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: 363AM0700X
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20220314001299
TX
8921493719
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Obstetrics & Gynecology
Doctor of Medicine (M.D.)
Dermatology
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Nurse Practitioner - Family
Family Nurse Practitioner
Nurse Practitioner - Family
Family Medicine
Family Nurse Practitioner
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 9092 WESTGATE PKWY W, AMARILLO, TX 791242441 (Tel: 8063507355)
Registered at 9092 WESTGATE PKWY W, AMARILLO, TX 791242441 (Tel: 8063507355)
Registered at 1301 S COULTER ST STE 200, AMARILLO, TX 791061765 (Tel: 8063507355)
Registered at 1301 S COULTER ST STE 200, AMARILLO, TX 791061765 (Tel: 8063507355)
Registered at 6842 PLUM CREEK DR, AMARILLO, TX 791241601 (Tel: 8063537000)
Registered at 6842 PLUM CREEK DR, AMARILLO, TX 791241601
Recorded as ABBY SCHLUMPF, MPAS, PA-C
Registered at PO BOX 99213, FORT WORTH, TX 761990213 (Tel: 6828854446)
Recorded as ABBY WOLF, PA
NPI status registered as active in NPPES database
Registered at 1401 W PULASKI ST, FORT WORTH, TX 761042717 (Tel: 6828858012)
Registered at 2609 JASMINE ST, STEPHENVILLE, TX 764011951 (Tel: 9407332340)
Recorded as ABBY WOLF
Physician Assistant
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Amarillo
- Son Le, PA
- Teresa Pattison-Thomas, PA
- Zhila Khamisi Asl, PA
- Cristin Lott, PA-C
- Andrea Britten, PA-C
- Brittni Smith, PA
Mailing Address
9092 Westgate Pkwy W
Amarillo, TX 791242441
Phone: 8063507355