Loan Duong , PA-C
Physician Assistant โข Gresham, OR
24988 Se Stark St
Gresham, OR 970308322
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 September 1, 2016; this date does not establish years in practice.
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Published CMS data list 501 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99214 โ Established patient outpatient office visit: 214 service units.
- G2211 โ Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's: 183 service units.
- 99215 โ Established patient outpatient office visit: 77 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 4 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 837 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Albuterol Sulfate Hfa (Albuterol Sulfate) โ 83 prescription fills, including refills.
- Montelukast Sodium โ 75 prescription fills, including refills.
- Stiolto Respimat (Tiotropium Br/Olodaterol Hcl) โ 60 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 27 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 95% of clinicians listed under Physician Assistant in Gresham, OR (2024, 24 clinicians with data). Median for this group: 186. Middle half: 112 to 292.
More Medicare Part B services than 75% of clinicians listed under Physician Assistant in Oregon (2024, 1,144 clinicians with data). Median for this group: 218. Middle half: 98 to 498.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 312 in 2020 to 501 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
24988 Se Stark St
Gresham, OR 970308322
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: Legacy Clinics Llc. 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
2016
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
265 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $42,292 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $31,322 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
1,273 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
$237,405 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 โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $42.95 across 2 records.
By nature of payment
- Food and Beverage: $42.95 across 2 records.
Reporting-company totals
- GlaxoSmithKline, LLC.: $21.99 across 1 record.
- AstraZeneca Pharmaceuticals LP: $20.96 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
10 years (graduated 2016)
CMS Doctors and Clinicians data list 2016 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
2016
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, โDoes your provider accept Medicare as full payment?โ
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Loan Duong 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 Loan Duong 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 Gresham and Oregon
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 95% of clinicians listed under Physician Assistant in Gresham, OR (2024, 24 clinicians with data). Median for this group: 186. Middle half: 112 to 292.
More Medicare Part B services than 75% of clinicians listed under Physician Assistant in Oregon (2024, 1,144 clinicians with data). Median for this group: 218. Middle half: 98 to 498.
Medicare-allowed amount
A higher Medicare-allowed amount than 95% of clinicians listed under Physician Assistant in Gresham, OR (2024, 24 clinicians with data). Median for this group: $12,491. Middle half: $8,933 to $20,077.
A higher Medicare-allowed amount than 80% of clinicians listed under Physician Assistant in Oregon (2024, 1,144 clinicians with data). Median for this group: $15,959. Middle half: $7,110 to $33,008.
Paid by Medicare
A higher Medicare payment amount than 95% of clinicians listed under Physician Assistant in Gresham, OR (2024, 24 clinicians with data). Median for this group: $7,813. Middle half: $5,893 to $14,532.
A higher Medicare payment amount than 80% of clinicians listed under Physician Assistant in Oregon (2024, 1,144 clinicians with data). Median for this group: $11,156. Middle half: $5,029 to $23,443.
Medicare Part D prescriptions
More Part D prescriptions than 75% of clinicians listed under Physician Assistant in Gresham, OR (2024, 29 clinicians with data). Median for this group: 185. Middle half: 66 to 683.
More Part D prescriptions than 65% of clinicians listed under Physician Assistant in Oregon (2024, 1,336 clinicians with data). Median for this group: 340. Middle half: 96 to 1,131.
Part D drug cost
A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Gresham, OR (2024, 29 clinicians with data). Median for this group: $1,620. Middle half: $518 to $44,770.
A higher Part D drug cost than 85% of clinicians listed under Physician Assistant in Oregon (2024, 1,336 clinicians with data). Median for this group: $8,538. Middle half: $984 to $101,656.
44 active clinicians are listed under Physician Assistant with a practice address in Gresham, OR (2,095 in Oregon).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Gresham
11.4% of these 44 clinicians have the CMS telehealth indicator.
72.7% of these 44 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 B services
Medicare Part B services increased 61% from 312 in 2020 to 501 in 2024.
- 2020: 312
- 2021: 155
- 2022: 272
- 2023: 153
- 2024: 501
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Medicare-allowed amount
Medicare-allowed amount increased 42% from $29,816 in 2020 to $42,292 in 2024.
- 2020: $29,816
- 2021: $13,515
- 2022: $24,432
- 2023: $15,791
- 2024: $42,292
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Paid by Medicare
Paid by Medicare increased 49% from $21,089 in 2020 to $31,322 in 2024.
- 2020: $21,089
- 2021: $10,342
- 2022: $15,636
- 2023: $10,741
- 2024: $31,322
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 22% from 1,077 in 2020 to 837 in 2024.
- 2020: 1,077
- 2021: 927
- 2022: 933
- 2023: 1,007
- 2024: 837
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30-day fills
30-day fills stayed about the same: 1,371 in 2020 and 1,273 in 2024.
- 2020: 1,371
- 2021: 1,192
- 2022: 1,179
- 2023: 1,341
- 2024: 1,273
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Part D drug cost
Part D drug cost decreased 18% from $288,691 in 2020 to $237,405 in 2024.
- 2020: $288,691
- 2021: $296,369
- 2022: $291,114
- 2023: $325,242
- 2024: $237,405
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $31.13 in 2023 to $42.95 in 2025.
- 2023: $31.13
- 2024: $75.41
- 2025: $42.95
Sources: CMS Medicare Physician & Other Practitioners (2024), 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 ยท 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 โ December 31, 2025): fewer than 11 records totaling $42.95.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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TRELEGY ELLIPTA | General | $21.99 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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BREZTRI | General | $20.96 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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214 | 175 | $341.00 | $111.61 |
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G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
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183 | 150 | $44.00 | $13.87 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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77 | 57 | $478.00 | $156.61 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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27 | 27 | $445.00 | $141.13 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
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 |
|---|---|---|---|---|---|
| Albuterol Sulfate Hfa | Albuterol Sulfate | 83 | 3,422 | $3,226.74 | 40 |
| Montelukast Sodium | Montelukast Sodium | 75 | 4,947 | $688.79 | 23 |
| Stiolto Respimat | Tiotropium Br/Olodaterol Hcl | 60 | 2,820 | $44,333.25 | 15 |
| Prednisone | Prednisone | 57 | 1,301 | $161.48 | 24 |
| Spiriva Respimat | Tiotropium Bromide | 56 | 2,820 | $48,167.65 | 19 |
| Azithromycin | Azithromycin | 51 | 2,308 | $1,113.66 | 13 |
| Mirtazapine | Mirtazapine | 41 | 1,564 | $597.54 | 11 |
| Dulera | Mometasone/Formoterol | 38 | 1,470 | $15,557.60 | โ |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 33 | 1,590 | $32,168.77 | โ |
| Trazodone Hcl | Trazodone Hcl | 28 | 1,201 | $50.96 | โ |
| Breyna | Budesonide/Formoterol Fumarate | 27 | 815 | $5,075.98 | โ |
| Budesonide-Formoterol Fumarate | Budesonide/Formoterol Fumarate | 26 | 1,230 | $7,151.68 | โ |
| Symbicort | Budesonide/Formoterol Fumarate | 22 | 780 | $6,060.44 | โ |
| Advair Hfa | Fluticasone Propion/Salmeterol | 22 | 960 | $13,175.22 | โ |
| Anoro Ellipta | Umeclidinium Brm/Vilanterol Tr | 21 | 750 | $9,944.73 | โ |
| Bevespi Aerosphere | Glycopyrrolate/Formoterol Fum | 21 | 690 | $9,032.38 | โ |
| Omeprazole | Omeprazole | 20 | 1,440 | $379.05 | โ |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 20 | 1,111 | $100.50 | โ |
| Breo Ellipta | Fluticasone/Vilanterol | 20 | 780 | $10,407.68 | โ |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 20 | 810 | $2,764.16 | โ |
| Zolpidem Tartrate | Zolpidem Tartrate | 17 | 242 | $78.60 | 13 |
| Fluticasone Propionate Hfa | Fluticasone Propionate | 16 | 600 | $6,305.53 | โ |
| Doxepin Hcl | Doxepin Hcl | 15 | 450 | $232.97 | โ |
| Gabapentin | Gabapentin | 14 | 525 | $77.52 | โ |
| Qvar Redihaler | Beclomethasone Dipropionate | 12 | 910 | $7,213.86 | โ |
(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: 2024-03-20NUCC 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: 363AM0700X
NUCC Taxonomy Code: 363AM0700X
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20161031001573
OR
0244518983
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
Legacy Clinics Llc
25050 Se Stark St, Gresham, OR 970303383
Phone: 5036741520
Legacy Clinics Llc
1130 Nw 22nd Ave, Portland, OR 972102969
Phone: 5034138988
Legacy Clinics Llc
25050 Se Stark St, Gresham, OR 970303383
Phone: 5036741848
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 - Pulmonary Disease
Doctor of Medicine (M.D.)
Internal Medicine - Pulmonary Disease
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant
Nurse Practitioner
Nurse Practitioner
Internal Medicine - Pulmonary Disease
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Physician Assistant (license number reported to NPPES: OR PA179171)
NPI status registered as active in NPPES database
Registered at 24988 SE STARK ST, GRESHAM, OR 970308322 (Tel: 5034135702)
Registered at 16655 NE OREGON ST, PORTLAND, OR 972305891 (Tel: 5034151325)
Recorded as LOAN DUONG, PA-C
Physician Assistant (license number reported to NPPES: OR PA179171)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Gresham
- Joshua Snow, PHYSICIAN ASSISTANT
- Jessica Cyphert, PA-C
- Selin Cronkrite, MPH, MSHS, PA-C
- Debbie Hoang, PA-C
- Bryhanna Mccully, PA-C
- Sandra Hwang
Mailing Address
16655 Ne Oregon St
Portland, OR 972305891
Phone: 5034151325