Martha Davis , PA
Physician Assistant • Winnie, TX
538 Broadway
Winnie, TX 776657600
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 November 21, 2006; this date does not establish years in practice.
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Published CMS data list 69 Original Medicare Part B services in 2019.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019. Published rows only; this is not a quality measure.
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Published Part B service records, 2019:
- 99203 — New patient outpatient office visit: 28 service units.
- 99213 — Established patient outpatient office visit: 28 service units.
- 81003 — Automated urinalysis test: 13 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2018 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2019). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Published CMS data list 373 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:
- Trazodone Hcl — 42 prescription fills, including refills.
- Quetiapine Fumarate — 41 prescription fills, including refills.
- Duloxetine Hcl — 40 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 all 15 records in the table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Part D prescriptions among 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 – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 306 in 2017 to 69 in 2019.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2019.
Practice Location & Contact Primary Location
538 Broadway
Winnie, TX 776657600
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 $4,458 in 2019
The total amount Medicare approved for these services in 2019. 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, 2019.
Paid by Medicare
About $1,898 in 2019
The part of the Medicare-allowed amount that Medicare itself paid in 2019, 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, 2019.
30-day fills
601 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
$4,427 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.
Open Payments general payments, program year 2025
All general payments: $1,152.41 across 57 records.
By nature of payment
- Food and Beverage: $1,040.92 across 56 records.
- Education: $111.49 across 1 record.
Reporting-company totals (3 largest of 13)
- Teva Pharmaceuticals USA, Inc.: $210.61 across 10 records.
- ABBVIE INC.: $189.68 across 9 records.
- Lundbeck LLC: $128.39 across 6 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
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.
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, “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)
Martha Davis 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 Martha Davis 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 Winnie and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Physician Assistant in Texas (2024, 4,882 clinicians with data). Median for this group: 261. Middle half: 73 to 938.
Too few clinicians listed under Physician Assistant in Winnie have Medicare Part D data for 2024 to compare.
Part D drug cost
Close to the middle for 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.
Too few clinicians listed under Physician Assistant in Winnie have Medicare Part D data for 2024 to compare.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Martha Davis are from 2019.
3 active clinicians are listed under Physician Assistant with a practice address in Winnie, TX (11,008 in Texas).
Addresses are self-reported to NPPES and may be out of date.
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 77% from 306 in 2017 to 69 in 2019.
- 2017: 306
- 2018: 234
- 2019: 69
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Medicare-allowed amount
Medicare-allowed amount decreased 74% from $17,028 in 2017 to $4,458 in 2019.
- 2017: $17,028
- 2018: $15,964
- 2019: $4,458
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Paid by Medicare
Paid by Medicare decreased 83% from $10,960 in 2017 to $1,898 in 2019.
- 2017: $10,960
- 2018: $10,011
- 2019: $1,898
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 14% from 326 in 2018 to 373 in 2024.
- 2018: 326
- 2019: 158
- 2022: 382
- 2023: 494
- 2024: 373
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30-day fills
30-day fills increased 84% from 326 in 2018 to 601 in 2024.
- 2018: 326
- 2019: 160
- 2022: 456
- 2023: 795
- 2024: 601
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Part D drug cost
Part D drug cost decreased 36% from $6,885 in 2018 to $4,427 in 2024.
- 2018: $6,885
- 2019: $1,874
- 2022: $11,334
- 2023: $92,449
- 2024: $4,427
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 39% from $1,891.40 in 2022 to $1,152.41 in 2025.
- 2022: $1,891.40
- 2023: $2,733.90
- 2024: $1,800.79
- 2025: $1,152.41
Sources: CMS Medicare Physician & Other Practitioners (2019), 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 · 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): 57 records totaling $1,152.41.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Teva Pharmaceuticals USA, Inc. |
Education
In-kind items and services
|
— | General | $111.49 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
VRAYLAR | General | $34.14 |
| Neurocrine BioSciences, Inc. |
Food and Beverage
In-kind items and services
|
INGREZZA | General | $34.04 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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VRAYLAR | General | $30.49 |
| Neurocrine BioSciences, Inc. |
Food and Beverage
In-kind items and services
|
INGREZZA | General | $29.23 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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VRAYLAR | General | $29.19 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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VRAYLAR | General | $27.81 |
| Axsome Therapeutics, Inc. |
Food and Beverage
In-kind items and services
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Auvelity | General | $25.96 |
| Lundbeck LLC |
Food and Beverage
Cash or cash equivalent
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REXULTI | General | $25.64 |
| Otsuka America Pharmaceutical, Inc. |
Food and Beverage
In-kind items and services
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REXULTI | General | $25.07 |
| Lundbeck LLC |
Food and Beverage
Cash or cash equivalent
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REXULTI | General | $24.33 |
| Corium, LLC |
Food and Beverage
In-kind items and services
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Azstarys | General | $23.53 |
| Bristol Myers Squibb Company |
Food and Beverage
Cash or cash equivalent
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COBENFY | General | $23.53 |
| Axsome Therapeutics, Inc. |
Food and Beverage
In-kind items and services
|
Sunosi | General | $22.18 |
| Lundbeck LLC |
Food and Beverage
Cash or cash equivalent
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REXULTI | General | $21.32 |
| Axsome Therapeutics, Inc. |
Food and Beverage
In-kind items and services
|
Auvelity | General | $21.17 |
| Lundbeck LLC |
Food and Beverage
Cash or cash equivalent
|
REXULTI | General | $21.08 |
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) |
Food and Beverage
In-kind items and services
|
CAPLYTA | General | $20.82 |
| Lundbeck LLC |
Food and Beverage
Cash or cash equivalent
|
REXULTI | General | $20.71 |
| Alkermes, Inc. |
Food and Beverage
In-kind items and services
|
LYBALVI | General | $20.62 |
| Neurocrine BioSciences, Inc. |
Food and Beverage
In-kind items and services
|
INGREZZA | General | $20.45 |
| Vanda Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
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FANAPT | General | $20.15 |
| Vanda Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
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FANAPT | General | $20.08 |
| Alkermes, Inc. |
Food and Beverage
In-kind items and services
|
LYBALVI | General | $19.63 |
| Teva Pharmaceuticals USA, Inc. |
Food and Beverage
In-kind items and services
|
AUSTEDO XR | General | $19.60 |
(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 2016–2018 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, 2017–2019; 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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28 | 28 | $229.29 | $93.82 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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28 | 27 | $220.00 | $64.25 |
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81003
Automated urinalysis test
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13 | 13 | $31.31 | $2.44 |
Source: CMS Part B by Provider and Service, 2019; 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 |
|---|---|---|---|---|---|
| Trazodone Hcl | Trazodone Hcl | 42 | 2,290 | $178.67 | 12 |
| Quetiapine Fumarate | Quetiapine Fumarate | 41 | 1,820 | $525.84 | — |
| Duloxetine Hcl | Duloxetine Hcl | 40 | 1,380 | $570.16 | — |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 32 | 1,440 | $573.18 | — |
| Escitalopram Oxalate | Escitalopram Oxalate | 29 | 2,070 | $327.27 | — |
| Olanzapine | Olanzapine | 28 | 1,800 | $367.34 | — |
| Sertraline Hcl | Sertraline Hcl | 22 | 720 | $24.59 | — |
| Amitriptyline Hcl | Amitriptyline Hcl | 21 | 870 | $274.61 | — |
| Lamotrigine | Lamotrigine | 21 | 1,440 | $238.05 | — |
| Bupropion Xl | Bupropion Hcl | 20 | 951 | $582.52 | — |
| Fluoxetine Hcl | Fluoxetine Hcl | 19 | 1,170 | $67.84 | — |
| Buspirone Hcl | Buspirone Hcl | 18 | 660 | $219.50 | — |
| Bupropion Hcl Sr | Bupropion Hcl | 16 | 540 | $237.51 | — |
| Venlafaxine Hcl | Venlafaxine Hcl | 13 | 390 | $176.25 | — |
| Mirtazapine | Mirtazapine | 11 | 450 | $64.11 | — |
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: 2020-03-05NUCC 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
I20040811001167
TX
5890767602
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.
Family Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Family Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Licensed Professional Counselor, Advanced Practice Registered Nurse
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Career & Practice History
NPI enumerated November 21, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Physician Assistants in Winnie
Mailing Address
Po Box 488
Simonton, TX 774760488
Phone: 7135820217