Hyojoon Hahn, MD
NPI 1407880073 · Diagnostic Radiology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hyojoon Hahn, MD is a Diagnostic Radiology Physician provider in Los Angeles, CA (NPI 1407880073).
Provider details
- NPI number
- 1407880073
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G60353 (CA)
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
19 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
2,423 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) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 1,203 | $41 |
| Ct Scan of Blood Vessels of Neck With Contrast70498 | 317 | $83 |
| Ct Scan of Blood Vessels of Head With Contrast70496 | 308 | $84 |
| Ct Scan of Upper Spine Without Contrast72125 | 227 | $48 |
| Mri Scan of Brain Without Contrast70551 | 178 | $72 |
| Ct Scan of Face Without Contrast70486 | 77 | $41 |
| Ct Scan of Cranial Cavity Without Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-10
- Last updated
- 2014-02-11
Frequently asked questions
- What is Hyojoon Hahn's NPI number?
- Hyojoon Hahn's National Provider Identifier (NPI) is 1407880073, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hyojoon Hahn's specialty?
- Hyojoon Hahn is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Hyojoon Hahn located?
- Hyojoon Hahn's practice location on file with NPPES is 11620 Wilshire Blvd, Los Angeles, CA 90025-1706.
- What is Hyojoon Hahn's phone number?
- The practice phone number listed in the NPPES registry for Hyojoon Hahn is (310) 914-7336.
- Does Hyojoon Hahn accept Medicare?
- Hyojoon Hahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hyojoon Hahn's NPI active?
- Yes — Hyojoon Hahn's NPI (1407880073) is active in the NPPES registry as of the last update on 2014-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.