OrganizationActive
Merrill J Zahtz MD Sc
NPI 1487833489 · Specialist · Evanston, IL
Provider details
- NPI number
- 1487833489
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Merrill Zahtz, President(773) 478-1197
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(88/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
800 Austin St
Suite 408
Evanston, IL 60202-3439
Phone: (847) 316-4744
Fax: (847) 475-6835
Street-level locationGet directions
Mailing address
3525 W Granville Ave
Chicago, IL 60659-2221
Registry dates
- Enumerated
- 2007-10-26
- Last updated
- 2007-10-26
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.