Bethany Siu, PA-C
NPI 1811411655 · Physician Assistant · Vienna, VA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bethany Siu, PA-C is a Physician Assistant provider in Vienna, VA (NPI 1811411655).
Provider details
- NPI number
- 1811411655
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 0110005860 (VA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
393 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Replacement of Knee Joint, Both Sides of Knee27447 | 120 | $195 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 88 | $86 |
| Replacement of Thigh Bone and Hip Joint With Prosthesis27130 | 71 | $189 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 49 | $69 |
| X-Ray of Knee, 3 Views73562 | 32 | $8 |
| X-Ray of Hip, 2-3 Views73502 | 20 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Celecoxib | 130 | 116 |
| Cephalexin | 109 | 93 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 94 | 84 |
| Ondansetron Hcl | 74 | 73 |
| Diclofenac Sodium | 69 | 52 |
| Oxycodone Hcl | 38 | 30 |
| Meloxicam | 34 | 25 |
| Tramadol Hcl |
Practice location
Mailing address
Additional practice locations (1)
- 1635 N George Mason Dr Ste 310Arlington, VA 22205-3616Phone: (703) 810-5215Fax: (703) 810-5428
Registry dates
- Enumerated
- 2017-08-02
- Last updated
- 2020-10-22
- Certified
- 2020-10-22
Frequently asked questions
- What is Bethany Siu's NPI number?
- Bethany Siu's National Provider Identifier (NPI) is 1811411655, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bethany Siu's specialty?
- Bethany Siu is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Bethany Siu located?
- Bethany Siu's practice location on file with NPPES is 8320 Old Courthouse Rd Ste 100, Vienna, VA 22182-3811.
- What is Bethany Siu's phone number?
- The practice phone number listed in the NPPES registry for Bethany Siu is (703) 810-5213.
- Does Bethany Siu accept Medicare?
- Bethany Siu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bethany Siu's NPI active?
- Yes — Bethany Siu's NPI (1811411655) is active in the NPPES registry as of the last update on 2020-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.