Amy Do , PA-C
Physician Assistant • Rancho Cucamonga, CA
8235 Rochester Ave Ste 110
Rancho Cucamonga, CA 917300719
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
NPI assigned on July 28, 2017; this date does not establish years in practice.
-
Published CMS data list 2,203 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.
-
Published Part D records, 2024:
- Atorvastatin Calcium — 172 prescription fills, including refills.
- Amlodipine Besylate — 152 prescription fills, including refills.
- Losartan Potassium — 135 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 65 records in the table · Guide: How to read Medicare Part D prescriber data
-
More Part D prescriptions than 70% of clinicians listed under Physician Assistant in Rancho Cucamonga, CA (2024, 28 clinicians with data). Median for this group: 295. Middle half: 95 to 2,288.
More Part D prescriptions than 90% of clinicians listed under Physician Assistant in California (2024, 7,516 clinicians with data). Median for this group: 229. Middle half: 72 to 718.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part D prescriptions went from 848 in 2020 to 2,203 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2024.
Practice Location & Contact Primary Location
8235 Rochester Ave Ste 110
Rancho Cucamonga, CA 917300719
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
4,784 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
$223,848 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: $434.30 across 19 records.
By nature of payment
- Food and Beverage: $434.30 across 19 records.
Reporting-company totals (3 largest of 12)
- Sanofi and Genzyme US Companies: $72.62 across 2 records.
- Eli Lilly and Company: $62.35 across 3 records.
- Salix Pharmaceuticals, a division of Bausch Health US, LLC: $62.13 across 3 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
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, “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)
Amy Do 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 Amy Do 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 Rancho Cucamonga and California
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 70% of clinicians listed under Physician Assistant in Rancho Cucamonga, CA (2024, 28 clinicians with data). Median for this group: 295. Middle half: 95 to 2,288.
More Part D prescriptions than 90% of clinicians listed under Physician Assistant in California (2024, 7,516 clinicians with data). Median for this group: 229. Middle half: 72 to 718.
Part D drug cost
A higher Part D drug cost than 85% of clinicians listed under Physician Assistant in Rancho Cucamonga, CA (2024, 28 clinicians with data). Median for this group: $9,363. Middle half: $1,640 to $158,740.
A higher Part D drug cost than 85% of clinicians listed under Physician Assistant in California (2024, 7,516 clinicians with data). Median for this group: $3,945. Middle half: $709 to $60,209.
59 active clinicians are listed under Physician Assistant with a practice address in Rancho Cucamonga, CA (14,458 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Rancho Cucamonga
6.8% of these 59 clinicians have the CMS telehealth indicator.
28.8% of these 59 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 D prescriptions
Medicare Part D prescriptions increased 160% from 848 in 2020 to 2,203 in 2024.
- 2020: 848
- 2021: 1,239
- 2022: 1,395
- 2023: 1,250
- 2024: 2,203
-
30-day fills
30-day fills increased 137% from 2,014 in 2020 to 4,784 in 2024.
- 2020: 2,014
- 2021: 3,096
- 2022: 3,690
- 2023: 2,765
- 2024: 4,784
-
Part D drug cost
Part D drug cost increased 547% from $34,602 in 2020 to $223,848 in 2024.
- 2020: $34,602
- 2021: $103,220
- 2022: $166,342
- 2023: $160,773
- 2024: $223,848
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $561.47 in 2021 to $434.30 in 2025.
- 2021: $561.47
- 2022: $281.05
- 2023: $68.84
- 2024: $373.80
- 2025: $434.30
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 · 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): 19 records totaling $434.30.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
|
TZIELD | General | $37.93 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
|
TZIELD | General | $34.69 |
| Ardelyx, Inc. |
Food and Beverage
In-kind items and services
|
IBSRELA | General | $33.26 |
| Sanofi Pasteur Inc. |
Food and Beverage
In-kind items and services
|
FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE | General | $26.56 |
| Boehringer Ingelheim Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
JARDIANCE | General | $26.30 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
PREVNAR 20 | General | $26.23 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
JARDIANCE | General | $24.13 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
|
XIFAXAN | General | $23.78 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
JARDIANCE | General | $21.88 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
|
XIFAXAN | General | $21.48 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
|
SHINGRIX | General | $20.78 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
LINZESS | General | $20.59 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
NURTEC ODT | General | $19.78 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Wegovy | General | $18.35 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
|
XIFAXAN | General | $16.87 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
|
The Cologuard Plus Collection Kit | General | $16.41 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
JARDIANCE | General | $16.34 |
| Globus Medical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Senza | General | $15.39 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
|
SHINGRIX | General | $13.55 |
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 | 172 | 14,446 | $1,509.28 | 71 |
| Amlodipine Besylate | Amlodipine Besylate | 152 | 12,290 | $725.58 | 55 |
| Losartan Potassium | Losartan Potassium | 135 | 10,750 | $1,179.32 | 47 |
| Metformin Hcl | Metformin Hcl | 107 | 7,506 | $825.95 | 37 |
| Famotidine | Famotidine | 93 | 5,926 | $821.14 | 34 |
| Levothyroxine Sodium | Levothyroxine Sodium | 78 | 6,360 | $1,025.69 | 25 |
| Gabapentin | Gabapentin | 69 | 4,762 | $1,034.48 | 29 |
| Hydrochlorothiazide | Hydrochlorothiazide | 66 | 5,550 | $199.13 | 26 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 62 | 1,650 | $1,826.83 | 17 |
| Fluticasone Propionate | Fluticasone Propionate | 53 | 2,730 | $415.56 | 27 |
| Ozempic | Semaglutide | 45 | 2,096 | $56,059.28 | 13 |
| Simvastatin | Simvastatin | 44 | 3,780 | $189.45 | 13 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 43 | 3,710 | $871.20 | 19 |
| Alendronate Sodium | Alendronate Sodium | 42 | 3,534 | $358.39 | 17 |
| Lisinopril | Lisinopril | 40 | 3,540 | $222.67 | 13 |
| Jardiance | Empagliflozin | 37 | 2,110 | $39,720.46 | 14 |
| Tamsulosin Hcl | Tamsulosin Hcl | 36 | 2,820 | $531.94 | 14 |
| Eliquis | Apixaban | 36 | 1,307 | $24,851.02 | — |
| Duloxetine Hcl | Duloxetine Hcl | 36 | 1,920 | $682.24 | — |
| Atenolol | Atenolol | 34 | 2,760 | $100.50 | — |
| Omeprazole | Omeprazole | 33 | 2,114 | $456.73 | 13 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 31 | 716 | $148.84 | 16 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 30 | 2,400 | $362.04 | 12 |
| Furosemide | Furosemide | 29 | 1,800 | $111.60 | 11 |
| Metoprolol Tartrate | Metoprolol Tartrate | 28 | 2,520 | $264.74 | 11 |
(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: 2024-09-27NUCC 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
I20171108003239
CA
5092071969
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.)
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Family Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Nurse Practitioner
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 8235 ROCHESTER AVE STE 110, RANCHO CUCAMONGA, CA 917300719 (Tel: 9094844900)
NPI status registered as active in NPPES database
Registered at 11822 FLORAL DR, WHITTIER, CA 906012900 (Tel: 5623171533)
Registered at 8356 FERN AVE, ROSEMEAD, CA 917703231
Recorded as AMY DO, PA-C
Physician Assistant (license number reported to NPPES: CA PA54563)
NPI status registered as active in NPPES database
Registered at 11822 FLORAL DR, WHITTIER, CA 906012900 (Tel: 5623171533)
Registered at 8356 FERN AVE, ROSEMEAD, CA 917703231
Recorded as AMY DO, PA-C
Physician Assistant (license number reported to NPPES: CA 54563)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Rancho Cucamonga
- Julina Lewallen
- Meredith Dettmar, PA-C
- Elias Zayer, PA-C
- Angela Cochran, PA
- Daniel Hestehauge, PA
- Brian Im, PA
Mailing Address
8356 Fern Ave
Rosemead, CA 917703231