IndividualActive
Yoon Hahn, M.D.
NPI 1336236231 · Neurological Surgery Physician · Chicago, IL
Yoon Hahn, M.D. is a Neurological Surgery Physician provider in Chicago, IL (NPI 1336236231).
Provider details
- NPI number
- 1336236231
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036056511 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
1740 W Taylor St
Chicago, IL 60612-7232
Phone: (866) 600-2273
Street-level locationGet directions
Mailing address
912 S Wood St
Chicago, IL 60612-4300
Registry dates
- Enumerated
- 2006-10-10
- Last updated
- 2009-04-03
Frequently asked questions
- What is Yoon Hahn's NPI number?
- Yoon Hahn's National Provider Identifier (NPI) is 1336236231, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yoon Hahn's specialty?
- Yoon Hahn is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Yoon Hahn located?
- Yoon Hahn's practice location on file with NPPES is 1740 W Taylor St, Chicago, IL 60612-7232.
- What is Yoon Hahn's phone number?
- The practice phone number listed in the NPPES registry for Yoon Hahn is (866) 600-2273.
- Is Yoon Hahn's NPI active?
- Yes — Yoon Hahn's NPI (1336236231) is active in the NPPES registry as of the last update on 2009-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.