Tom Ku , PA-C
Physician Assistant • Corona, CA
2250 S Main St, Ste. 106
Corona, CA 928822534
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 3, 2006; this date does not establish years in practice.
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Published CMS data list 11,457 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:
- Atorvastatin Calcium — 652 prescription fills, including refills.
- Gabapentin — 477 prescription fills, including refills.
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) — 347 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 177 records in the table · 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 Corona, CA (2024, 32 clinicians with data). Median for this group: 257. Middle half: 49 to 979.
More Part D prescriptions than 95% of clinicians listed under Physician Assistant in California (2024, 7,546 clinicians with data). Median for this group: 228. Middle half: 72 to 717.
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 D prescriptions went from 8,560 in 2020 to 11,457 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2024.
Practice Location & Contact Primary Location
2250 S Main St
Ste. 106
Corona, CA 928822534
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
22,773 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
$923,320 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: $2,652.19 across 93 records.
By nature of payment
- Food and Beverage: $2,652.19 across 93 records.
Reporting-company totals (3 largest of 17)
- AstraZeneca Pharmaceuticals LP: $716.12 across 13 records.
- Amgen Inc.: $491.67 across 21 records.
- Novo Nordisk Inc: $462.11 across 7 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, CMS release of October 2, 2026; 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, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Tom Ku 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 Tom Ku 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 Corona and California
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 Corona, CA (2024, 32 clinicians with data). Median for this group: 257. Middle half: 49 to 979.
More Part D prescriptions than 95% of clinicians listed under Physician Assistant in California (2024, 7,546 clinicians with data). Median for this group: 228. Middle half: 72 to 717.
Part D drug cost
A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Corona, CA (2024, 32 clinicians with data). Median for this group: $3,279. Middle half: $510 to $32,476.
A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in California (2024, 7,546 clinicians with data). Median for this group: $3,944. Middle half: $710 to $60,219.
58 active clinicians are listed under Physician Assistant with a practice address in Corona, CA (14,777 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Corona
10.3% of these 58 clinicians have the CMS telehealth indicator.
34.5% of these 58 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 34% from 8,560 in 2020 to 11,457 in 2024.
- 2020: 8,560
- 2021: 9,235
- 2022: 10,353
- 2023: 10,994
- 2024: 11,457
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30-day fills
30-day fills increased 41% from 16,116 in 2020 to 22,773 in 2024.
- 2020: 16,116
- 2021: 17,561
- 2022: 19,776
- 2023: 21,370
- 2024: 22,773
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Part D drug cost
Part D drug cost increased 63% from $566,112 in 2020 to $923,320 in 2024.
- 2020: $566,112
- 2021: $732,774
- 2022: $896,711
- 2023: $941,974
- 2024: $923,320
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 43% from $4,626.70 in 2021 to $2,652.19 in 2025.
- 2021: $4,626.70
- 2022: $3,288.76
- 2023: $2,488.24
- 2024: $2,947.92
- 2025: $2,652.19
Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS release of October 2, 2026, 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): 93 records totaling $2,652.19.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
AIRSUPRA | General | $186.28 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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FREESTYLE LIBRE 3 | General | $139.64 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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NURTEC ODT | General | $125.00 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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BREZTRI | General | $125.00 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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AIRSUPRA | General | $124.99 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Wegovy | General | $124.98 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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BREZTRI | General | $124.85 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Ozempic | General | $124.02 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Ozempic | General | $119.78 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
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Otezla | General | $119.76 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
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OTEZLA | General | $119.76 |
| Verity Pharmaceuticals Inc. |
Food and Beverage
Cash or cash equivalent
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Tlando | General | $36.90 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Wegovy | General | $28.04 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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TRELEGY ELLIPTA | General | $27.13 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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LEQVIO | General | $26.09 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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NURTEC ODT | General | $25.13 |
| Dexcom, Inc. |
Food and Beverage
In-kind items and services
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Dexcom G6 Transmitter | General | $24.99 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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FREESTYLE LIBRE 3 | General | $24.32 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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UBRELVY | General | $23.79 |
| Almatica Pharma LLC |
Food and Beverage
In-kind items and services
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LOREEV XR | General | $23.73 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Wegovy | General | $23.23 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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QULIPTA | General | $22.86 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
BREZTRI | General | $22.38 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
ELIQUIS | General | $22.27 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
FREESTYLE LIBRE 3 | General | $22.24 |
(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 |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 652 | 49,741 | $6,366.26 | 167 |
| Gabapentin | Gabapentin | 477 | 26,986 | $8,091.62 | 115 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 347 | 9,350 | $7,757.39 | 55 |
| Levothyroxine Sodium | Levothyroxine Sodium | 320 | 27,420 | $4,392.92 | 82 |
| Amlodipine Besylate | Amlodipine Besylate | 296 | 22,483 | $1,678.18 | 78 |
| Pantoprazole Sodium | Pantoprazole Sodium | 289 | 18,732 | $2,494.47 | 67 |
| Losartan Potassium | Losartan Potassium | 273 | 20,601 | $2,500.34 | 75 |
| Lisinopril | Lisinopril | 254 | 21,675 | $1,858.31 | 74 |
| Lorazepam | Lorazepam | 208 | 6,555 | $940.56 | 32 |
| Metformin Hcl | Metformin Hcl | 207 | 17,428 | $1,920.50 | 61 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 205 | 6,590 | $5,495.92 | 55 |
| Alprazolam | Alprazolam | 204 | 6,318 | $913.22 | 34 |
| Tamsulosin Hcl | Tamsulosin Hcl | 204 | 17,001 | $3,285.31 | 67 |
| Omeprazole | Omeprazole | 203 | 13,848 | $2,783.49 | 55 |
| Metoprolol Succinate | Metoprolol Succinate | 201 | 14,891 | $2,403.43 | 55 |
| Metformin Hcl Er | Metformin Hcl | 184 | 13,058 | $1,356.50 | 45 |
| Furosemide | Furosemide | 180 | 10,418 | $842.46 | 46 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 179 | 14,540 | $1,826.86 | 53 |
| Meloxicam | Meloxicam | 161 | 8,216 | $496.55 | 45 |
| Zolpidem Tartrate | Zolpidem Tartrate | 149 | 4,844 | $660.30 | 26 |
| Pioglitazone Hcl | Pioglitazone Hcl | 148 | 11,209 | $2,366.70 | 36 |
| Baclofen | Baclofen | 140 | 6,332 | $2,123.54 | 48 |
| Fluticasone Propionate | Fluticasone Propionate | 127 | 5,800 | $1,648.23 | 33 |
| Tramadol Hcl | Tramadol Hcl | 125 | 3,193 | $2,377.86 | 25 |
| Hydrochlorothiazide | Hydrochlorothiazide | 119 | 9,040 | $365.28 | 35 |
(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: 2023-08-17NUCC 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
I20190611002382
CA
5092959817
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.
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Pediatrics
Nurse Practitioner
Physician Assistant
Physician Assistant (Certified)
Physician Assistant
Physician Assistant (Certified)
Surgery
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at PO BOX 5089, NORCO, CA 928608003 (Tel: 9513712703)
Registered at 1901 TOWN AND COUNTRY DR, STE 104, NORCO, CA 928603611 (Tel: 9518086240)
NPI status registered as active in NPPES database
Registered at 2250 S MAIN ST, STE. 106, CORONA, CA 928822534 (Tel: 9513712703)
Registered at 2250 S MAIN ST, STE. 106, CORONA, CA 928822534 (Tel: 9513712703)
Recorded as TOM KU, P.A.-C
Physician Assistant (license number reported to NPPES: CA PA12649)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Corona
- Kevin Chen
- Michael Charvis
- Shilpy Kanda, PA-C
- Andrew Shaw, PA-C
- Cynthia Bailey, PA-C
- Steven Hinojos, PA-C
Mailing Address
Po Box 5089
Norco, CA 928608003
Phone: 9513712703