Arun Sun, PA-C
NPI 1821172875 · Physician Assistant · Roanoke, VA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arun Sun, PA-C is a Physician Assistant provider in Roanoke, VA (NPI 1821172875).
Provider details
- NPI number
- 1821172875
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 0110001421 (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 tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
128 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 52 | $75 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 29 | $138 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 21 | $106 |
| Testing for Presence of Drug, Read By Direct Observation80305 | 14 | $12 |
| Injection of Trigger Points, 1-2 Muscles20552 | 12 | $43 |
Typical Medicare-allowed amounts for these services range $12–$138 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 40 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 638 | 110 |
| Oxycodone Hcl | 489 | 68 |
| Gabapentin | 416 | 82 |
| Tramadol Hcl | 259 | 73 |
| Tizanidine Hcl | 191 | 46 |
| Morphine Sulfatebrand: Morphine Sulfate Er | 184 | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,820 across 82 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-25
- Last updated
- 2013-03-29
Frequently asked questions
- What is Arun Sun's NPI number?
- Arun Sun's National Provider Identifier (NPI) is 1821172875, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arun Sun's specialty?
- Arun Sun is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Arun Sun located?
- Arun Sun's practice location on file with NPPES is 5372 Fallowater Ln, Roanoke, VA 24018-0903.
- What is Arun Sun's phone number?
- The practice phone number listed in the NPPES registry for Arun Sun is (540) 725-7364.
- Does Arun Sun accept Medicare?
- Arun Sun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arun Sun's NPI active?
- Yes — Arun Sun's NPI (1821172875) is active in the NPPES registry as of the last update on 2013-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.