William D'antonio
Physician Assistant β’ Houston, TX
3003 Navigation Blvd
Houston, TX 770031239
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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William D'Antonio is listed in NPPES under Physician Assistant.
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NPI assigned on January 18, 2021; this date does not establish years in practice.
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Published CMS data list 2,860 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:
- Atorvastatin Calcium β 229 prescription fills, including refills.
- Rosuvastatin Calcium β 169 prescription fills, including refills.
- Famotidine β 133 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 66 records in the table Β· Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Houston, TX (2024, 694 clinicians with data). Median for this group: 128. Middle half: 39 to 436.
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 1,364 in 2022 to 2,860 in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2022β2024.
Practice Location & Contact Primary Location
3003 Navigation Blvd
Houston, TX 770031239
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2021
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
7,001 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
$211,983 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: $162.44 across 8 records.
By nature of payment
- Food and Beverage: $162.44 across 8 records.
Reporting-company totals (3 largest of 4)
- AstraZeneca Pharmaceuticals LP: $82.56 across 4 records.
- Exact Sciences Corporation: $34.55 across 2 records.
- Novo Nordisk Inc: $29.74 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).
Years since graduation
5 years (graduated 2021)
CMS Doctors and Clinicians data list 2021 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
2021
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.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
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)
William D'Antonio 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 William D'Antonio 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 Houston and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Houston, TX (2024, 694 clinicians with data). Median for this group: 128. Middle half: 39 to 436.
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 85% of clinicians listed under Physician Assistant in Houston, TX (2024, 694 clinicians with data). Median for this group: $3,399. Middle half: $392 to $55,265.
A higher Part D drug cost than 80% 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.
1,802 active clinicians are listed under Physician Assistant with a practice address in Houston, TX (11,008 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Houston
17.8% of these 1,802 clinicians have the CMS telehealth indicator.
53.1% of these 1,802 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 110% from 1,364 in 2022 to 2,860 in 2024.
- 2022: 1,364
- 2023: 3,036
- 2024: 2,860
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30-day fills
30-day fills increased 124% from 3,128 in 2022 to 7,001 in 2024.
- 2022: 3,128
- 2023: 7,373
- 2024: 7,001
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Part D drug cost
Part D drug cost increased 85% from $114,870 in 2022 to $211,983 in 2024.
- 2022: $114,870
- 2023: $376,536
- 2024: $211,983
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $34.48 in 2023 to $162.44 in 2025.
- 2023: $34.48
- 2024: $182.73
- 2025: $162.44
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): fewer than 11 records totaling $162.44.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Wegovy | General | $29.74 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
FARXIGA | General | $26.08 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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FARXIGA | General | $23.73 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
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Cologuard Collection Kit | General | $19.01 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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FARXIGA | General | $16.86 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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FARXIGA | General | $15.89 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
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XIFAXAN | General | $15.59 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
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Cologuard Collection Kit | General | $15.54 |
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 |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 229 | 19,633 | $1,604.52 | 156 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 169 | 14,790 | $1,980.43 | 118 |
| Famotidine | Famotidine | 133 | 10,324 | $1,763.16 | 93 |
| Lisinopril | Lisinopril | 131 | 10,224 | $487.33 | 79 |
| Fluticasone Propionate | Fluticasone Propionate | 110 | 5,494 | $1,424.12 | 83 |
| Amlodipine Besylate | Amlodipine Besylate | 103 | 8,324 | $238.92 | 68 |
| Metformin Hcl | Metformin Hcl | 90 | 7,638 | $343.53 | 60 |
| Levothyroxine Sodium | Levothyroxine Sodium | 83 | 6,312 | $472.61 | 55 |
| Sertraline Hcl | Sertraline Hcl | 79 | 6,498 | $370.56 | 51 |
| Losartan Potassium | Losartan Potassium | 78 | 6,442 | $418.52 | 53 |
| Tamsulosin Hcl | Tamsulosin Hcl | 77 | 6,592 | $562.45 | 58 |
| Pioglitazone Hcl | Pioglitazone Hcl | 76 | 6,540 | $974.09 | 53 |
| Diclofenac Sodium | Diclofenac Sodium | 75 | 2,388 | $2,415.42 | 53 |
| Hydrochlorothiazide | Hydrochlorothiazide | 74 | 5,797 | $239.78 | 49 |
| Gabapentin | Gabapentin | 65 | 5,137 | $1,138.91 | 44 |
| Pantoprazole Sodium | Pantoprazole Sodium | 62 | 5,400 | $570.40 | 48 |
| Metformin Hcl Er | Metformin Hcl | 57 | 4,800 | $349.33 | 33 |
| Jardiance | Empagliflozin | 50 | 4,110 | $75,735.88 | 33 |
| Trazodone Hcl | Trazodone Hcl | 43 | 2,310 | $139.03 | 27 |
| Vitamin D2 | Ergocalciferol (Vitamin D2) | 43 | 3,804 | $267.14 | 32 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 41 | 3,432 | $168.86 | 28 |
| Meloxicam | Meloxicam | 40 | 679 | $49.46 | 36 |
| Azithromycin | Azithromycin | 37 | 182 | $88.66 | 36 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 37 | 1,840 | $1,918.01 | 26 |
| Finasteride | Finasteride | 36 | 3,157 | $219.40 | 27 |
(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: 2024-03-26NUCC 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: 390200000X
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20220511002126
TX
5890172936
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.
Physician Assistant - Medical
Physician Assistant (Certified)
Physician Assistant
Physician Assistant (Certified)
Family Medicine
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Nurse Practitioner - Family
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Student in an Organized Health Care Education/Training Program
Registered at 3003 NAVIGATION BLVD, HOUSTON, TX 770031239 (Tel: 7132234466)
Registered at 3003 NAVIGATION BLVD, HOUSTON, TX 770031239 (Tel: 7132234466)
Physician Assistant (license number reported to NPPES: TX PA15734)
NPI status registered as active in NPPES database
Registered at 673 CHESTNUT ST APT 16B, MANCHESTER, NH 031043553 (Tel: 7134999704)
Registered at 673 CHESTNUT ST APT 16B, MANCHESTER, NH 031043553 (Tel: 7134999704)
Recorded as WILLIAM D'ANTONIO
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Houston
- Kathleen Bui
- Kaelin Mead, PA
- Laura Fertak, PA-C
- David Salinas, PA-C
- Stacey Webster, PA-C
- Eileen Duncan, PA-C
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Mailing Address
3003 Navigation Blvd
Houston, TX 770031239
Phone: 7132234466