Yun Sun, M.D.
NPI 1659471217 · Neurology Physician · Wynnewood, PA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yun Sun, M.D. is a Neurology Physician provider in Wynnewood, PA (NPI 1659471217).
Provider details
- NPI number
- 1659471217
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD073134L (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
313 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 130 | $174 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 100 | $119 |
| Critical Care, First 30-74 Minutes99291 | 83 | $214 |
Typical Medicare-allowed amounts for these services range $119–$214 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$124 across 6 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
Additional practice locations (3)
- 90 Brick Rd Fl 3Marlton, NJ 08053-2177Phone: (856) 355-6730Fax: (856) 355-6731
- 100 Bowman Dr Lowr Level2Voorhees, NJ 08043-9612Phone: (856) 988-3444Fax: (856) 988-0553
- 218 Sunset Rd Fl 5Willingboro, NJ 08046-1110Phone: (609) 835-2900Fax: (609) 835-3059
Registry dates
- Enumerated
- 2006-09-24
- Last updated
- 2021-07-26
- Certified
- 2021-07-26
Frequently asked questions
- What is Yun Sun's NPI number?
- Yun Sun's National Provider Identifier (NPI) is 1659471217, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yun Sun's specialty?
- Yun Sun is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Yun Sun located?
- Yun Sun's practice location on file with NPPES is 100 E Lancaster Ave, Wynnewood, PA 19096-3450.
- What is Yun Sun's phone number?
- The practice phone number listed in the NPPES registry for Yun Sun is (484) 572-6300.
- Does Yun Sun accept Medicare?
- Yun Sun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yun Sun's NPI active?
- Yes — Yun Sun's NPI (1659471217) is active in the NPPES registry as of the last update on 2021-07-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.