OrganizationActive
Leon J Frazin, M.D.
NPI 1003912908 · Cardiovascular Disease Physician · Chicago, IL
Provider details
- NPI number
- 1003912908
- Entity type
- Organization
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Leon Frazin, Physician/Surgeon(847) 635-6490
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
2222 W Division St
Ste 250
Chicago, IL 60622-2717
Phone: (773) 276-0988
Fax: (773) 276-0955
Street-level locationGet directions
Mailing address
241 Golf Mill Ctr
Niles, IL 60714-1224
Other names (DBA / former)
- Doing business as
- Leon J Frazin, M.D., S.c.
Registry dates
- Enumerated
- 2006-09-16
- Last updated
- 2020-08-22
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.