Bethany Siu, PA-C
Physician Assistant · Vienna, VA
Bethany Siu, PA-C is a physician assistant with a practice address in Vienna, Virginia, and NPI 1811411655, issued on Aug 2, 2017. Check the license (Virginia 0110005860, as entered in NPPES) with the Virginia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Bethany Siu
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 0110005860 VA
Self-reported in NPPES; status is on the state search - Practice location
- 8320 Old Courthouse RD Ste 100, Vienna, VA 22182
- Phone
- (703) 810-5213
- Enumerated
- Aug 2, 2017
- Record last updated
- Oct 22, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (703) 810-5429
- Medicare enrollment
- Enrolled (PECOS I20170920002733); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,408 in Virginia → Look up another NPI →
Also registered at 8320 Old Courthouse RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erin Philips, NPNurse Practitioner1548740988
Verify Bethany Siu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Virginia board licenses this profession
Search for license 0110005860Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% fewer Medicare Part D claims than the average physician assistant in 2024
700 Medicare Part D claims for 319 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 171 claims were for opioids.
Most prescribed
- Celecoxib130 claims
- Cephalexin109 claims
- Oxycodone-Acetaminophen94 claims
- Ondansetron Hcl74 claims
- Diclofenac Sodium69 claims
- Oxycodone Hcl38 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Orthovirginia IncArlington, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bethany Siu among 4,408 physician assistant records in Virginia
Bethany Siu, PA-C is one of 4,408 physician assistant records with a practice address in Virginia. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 45% of them.
- NPI issued2017 · 45% of these records are older, 51% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2017 · median 2018 among the 2,885 with a school on file
- Record last updated2020 · 33% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 physician assistant records list a practice address in Vienna
They are 24 of the 1,554 NPPES records with a practice address in Vienna, and 4,408 physician assistant records in Virginia.
All 4,408 in Virginia → Every provider in Vienna → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Biniam AbrahamVienna, VA 221821053882134
- Lauren AllenVienna, VA 221821124714274
- Deborah Allis, PAVienna, VA 221821487626255
- Hector Bird, PA-CVienna, VA 221821033592902
- Sameen Bozai, PA-CVienna, VA 221821508519240
- Min Jin Detrick, PA-CTysons, VA 221821285884007
- Sandra Esteves, PA-CVienna, VA 221821811448327
- Kendra Mingo, PAVienna, VA 221821043846199
Common questions
What is Bethany Siu, PA-C's NPI number?
Bethany Siu, PA-C's National Provider Identifier (NPI) is 1811411655, issued on Aug 2, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Bethany Siu, PA-C located?
The NPPES record lists a practice address at 8320 Old Courthouse RD Ste 100, Vienna, VA, 22182. Phone: (703) 810-5213. Providers update this record themselves, so call before visiting.
How can I verify Bethany Siu, PA-C's license?
NPPES lists Virginia license number 0110005860, as entered by the provider. Search the Virginia board that licenses this profession; the NPPES record confirms identity only.
How much does Bethany Siu, PA-C prescribe under Medicare Part D?
In 2024, Bethany Siu, PA-C had 700 Medicare Part D claims for 319 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Bethany Siu, PA-C's MIPS final score?
The 2023 MIPS final score is 76.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.