Neil Chen
Physician Assistant β’ Orange, CA
867 S Tustin St
Orange, CA 928663426
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 August 11, 2022; this date does not establish years in practice.
-
Published CMS data list 200 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.
-
Published Part D records, 2024:
- Azithromycin β 59 prescription fills, including refills.
- Cephalexin β 40 prescription fills, including refills.
- Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) β 28 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 8 records in the table Β· Guide: How to read Medicare Part D prescriber data
-
Close to the middle for Part D prescriptions among clinicians listed under Physician Assistant in Orange, CA (2024, 106 clinicians with data). Median for this group: 204. Middle half: 75 to 588.
Close to the middle for Part D prescriptions among 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 β by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part D prescriptions went from 141 in 2023 to 200 in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023β2024.
Practice Location & Contact Primary Location
867 S Tustin St
Orange, CA 928663426
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
202 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
$1,278 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.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021β2025.
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.
Compared with the same specialty in Orange and California
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Physician Assistant in Orange, CA (2024, 106 clinicians with data). Median for this group: 204. Middle half: 75 to 588.
Close to the middle for 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 lower Part D drug cost than 60% of clinicians listed under Physician Assistant in Orange, CA (2024, 106 clinicians with data). Median for this group: $2,576. Middle half: $717 to $27,315.
A lower Part D drug cost than 65% 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.
181 active clinicians are listed under Physician Assistant with a practice address in Orange, CA (14,458 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Orange
16.6% of these 181 clinicians have the CMS telehealth indicator.
57.5% of these 181 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 42% from 141 in 2023 to 200 in 2024.
- 2023: 141
- 2024: 200
-
30-day fills
30-day fills increased 43% from 141 in 2023 to 202 in 2024.
- 2023: 141
- 2024: 202
-
Part D drug cost
Part D drug cost went from $968 in 2023 to $1,278 in 2024.
- 2023: $968
- 2024: $1,278
Sources: CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
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 |
|---|---|---|---|---|---|
| Azithromycin | Azithromycin | 59 | 295 | $157.62 | 59 |
| Cephalexin | Cephalexin | 40 | 278 | $188.54 | 39 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 28 | 280 | $206.87 | 26 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 19 | 563 | $285.86 | 18 |
| Diclofenac Sodium | Diclofenac Sodium | 16 | 275 | $229.34 | 16 |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 14 | 98 | $89.19 | 14 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 13 | 322 | $64.77 | 11 |
| Mupirocin | Mupirocin | 11 | 100 | $55.81 | 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: 2022-08-11NUCC 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.
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
Physician Assistant
Family Medicine
Doctor of Osteopathic Medicine (D.O.)
Family Medicine - Adult Medicine
Doctor of Osteopathic Medicine (D.O.)
Family Medicine - Adult Medicine
Doctor of Medicine (M.D.)
General Practice
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 867 S TUSTIN ST, ORANGE, CA 928663426 (Tel: 7147711420)
Registered at PO BOX 17574, IRVINE, CA 926237574 (Tel: 9493753595)
Physician Assistant (license number reported to NPPES: CA PA62079)
NPI status registered as active in NPPES database
Registered at 2575 YORBA LINDA BLVD, FULLERTON, CA 928311615 (Tel: 9493753595)
Registered at 2575 YORBA LINDA BLVD, FULLERTON, CA 928311615 (Tel: 9493753595)
Recorded as NEIL CHEN
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 Orange
- Jessielyn Woolbright, PA-C
- Chloe Tyau, PA-C
- Helge Helgesen, PA
- Ashley Moline, PA
- Onil Vallecillo, PA
- Matthew Schnepf, PA-C
Mailing Address
Po Box 17574
Irvine, CA 926237574
Phone: 9493753595