Gabriella M Jun , PA-C
Physician Assistant β’ Herndon, VA
100 Elden St Ste 10
Herndon, VA 201704833
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 April 17, 2022; this date does not establish years in practice.
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Published CMS data list 37 Medicare Part D prescriptions, including refills, in 2023.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023. Published rows only; this is not a quality measure.
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Published Part D records, 2023:
- Amlodipine Besylate β 14 prescription fills, including refills.
- Rosuvastatin Calcium β 12 prescription fills, including refills.
- Atorvastatin Calcium β 11 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table Β· Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 39 in 2022 to 37 in 2023.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2022β2023.
Practice Location & Contact Primary Location
100 Elden St Ste 10
Herndon, VA 201704833
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Allergy Partners Pllc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
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
93 standardized 30-day fills in 2023
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
$398 in 2023
The total cost of these prescriptions in 2023, 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, 2023.
Open Payments general payments, program year 2025
All general payments: $253.64 across 11 records.
By nature of payment
- Food and Beverage: $253.64 across 11 records.
Reporting-company totals (3 largest of 6)
- Sanofi and Genzyme US Companies: $71.97 across 3 records.
- AstraZeneca Pharmaceuticals LP: $56.46 across 3 records.
- ARS Pharmaceuticals Operations, Inc.: $54.59 across 2 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).
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
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.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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)
Gabriella Jun 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 Gabriella Jun 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 Herndon and Virginia
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Gabriella Jun are from 2023.
16 active clinicians are listed under Physician Assistant with a practice address in Herndon, VA (4,411 in Virginia).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Herndon
12.5% of these 16 clinicians have the CMS telehealth indicator.
68.8% of these 16 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 stayed about the same: 39 in 2022 and 37 in 2023.
- 2022: 39
- 2023: 37
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30-day fills
30-day fills stayed about the same: 87 in 2022 and 93 in 2023.
- 2022: 87
- 2023: 93
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Part D drug cost
Part D drug cost went from $296 in 2022 to $398 in 2023.
- 2022: $296
- 2023: $398
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $190.13 in 2022 to $253.64 in 2025.
- 2022: $190.13
- 2023: $152.37
- 2024: $30.97
- 2025: $253.64
Sources: CMS Medicare Part D Prescribers (2023), 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): 11 records totaling $253.64.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Genentech, Inc. |
Food and Beverage
In-kind items and services
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Xolair | General | $32.27 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
|
DUPIXENT | General | $31.40 |
| ARS Pharmaceuticals Operations, Inc. |
Food and Beverage
In-kind items and services
|
NEFFY | General | $27.74 |
| ARS Pharmaceuticals Operations, Inc. |
Food and Beverage
In-kind items and services
|
NEFFY | General | $26.85 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
|
DUPIXENT | General | $22.12 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
FASENRA | General | $21.85 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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β | General | $19.65 |
| Incyte Corporation |
Food and Beverage
Cash or cash equivalent
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OPZELURA | General | $18.70 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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TEZSPIRE | General | $18.69 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
|
DUPIXENT | General | $18.45 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
AIRSUPRA | General | $15.92 |
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 2023.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Amlodipine Besylate | Amlodipine Besylate | 14 | 1,100 | $86.52 | β |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 12 | 890 | $241.30 | β |
| Atorvastatin Calcium | Atorvastatin Calcium | 11 | 810 | $70.37 | β |
Source: CMS Part D by Provider and Drug, 2023; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-03-05NUCC 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
I20240830002572
DC
0244607356
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Allergy Partners Pllc
13900 Laurel Lakes Ave, Laurel, MD 207075071
Phone: 3014834374
Allergy Partners Pllc
100 Elden St, Herndon, VA 201704833
Phone: 7034044600
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner
NURSEPRACTITIONER
Nurse Practitioner
NURSEPRACTIONER
Allergy & Immunology
Doctor of Medicine (M.D.)
Allergy & Immunology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Recorded as GABRIELLA JUN, PA-C
Registered at 100 ELDEN ST STE 10, HERNDON, VA 201704833 (Tel: 7036892000)
Registered at PO BOX 603725, CHARLOTTE, NC 282603725 (Tel: 8285752625)
NPI status registered as active in NPPES database
Registered at 24805 PINEBROOK RD STE 317, SOUTH RIDING, VA 201524127 (Tel: 7037221000)
Registered at 9001 DIGGES RD STE 105, MANASSAS, VA 201104414 (Tel: 7033695000)
Recorded as GABRIELLA MAYE, PA-C
Physician Assistant (license number reported to NPPES: VA 0110008486)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Herndon
- Monique Nwala, MPAS, PA-C
- Gabrielle Marinelli
- Jennifer Leseman, PA-C
- Corinne Singh, PA
- Tracy Tartaglione, PA-C
- Deepika Mathialagan
Mailing Address
Po Box 603725
Charlotte, NC 282603725
Phone: 8285752625