IndividualActive
Isaac Reiser, M.D.
NPI 1811987019 · Internal Medicine Physician · Chicago, IL
Provider details
- NPI number
- 1811987019
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036036054 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
3960 N Harlem Ave
Chicago, IL 60634-2219
Phone: (773) 625-7809
Fax: (773) 625-7449
Street-level locationGet directions
Mailing address
940 Augusta Way
Highland Park, IL 60035
Registry dates
- Enumerated
- 2005-10-27
- Last updated
- 2013-01-22
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.