Hannah Yoon, M.D.
NPI 1255560603 · Radiation Oncology Physician · Corning, NY
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hannah Yoon, M.D. is a Radiation Oncology Physician provider in Corning, NY (NPI 1255560603).
Provider details
- NPI number
- 1255560603
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 274986 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
202 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) |
|---|---|---|
| Radiation Treatment Management, 5 Treatment Sessions77427 | 72 | $172 |
| Calculation of Radiation Therapy Dose77300 | 44 | $31 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 36 | $93 |
| 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'SG2211 | 20 | $16 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 18 | $137 |
| Complex Radiation Therapy Planning |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-07-07
- Last updated
- 2021-10-20
- Certified
- 2021-10-20
Frequently asked questions
- What is Hannah Yoon's NPI number?
- Hannah Yoon's National Provider Identifier (NPI) is 1255560603, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hannah Yoon's specialty?
- Hannah Yoon is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Hannah Yoon located?
- Hannah Yoon's practice location on file with NPPES is 2 Guthrie Dr, Corning, NY 14830-3697.
- What is Hannah Yoon's phone number?
- The practice phone number listed in the NPPES registry for Hannah Yoon is (607) 937-3100.
- Does Hannah Yoon accept Medicare?
- Hannah Yoon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hannah Yoon's NPI active?
- Yes — Hannah Yoon's NPI (1255560603) is active in the NPPES registry as of the last update on 2021-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.