IndividualActive
Mark Ketterson, LCSW
NPI 1770706699 · Mental Health Counselor · Chicago, IL
Mark Ketterson, LCSW is a Mental Health Counselor provider in Chicago, IL (NPI 1770706699).
Provider details
- NPI number
- 1770706699
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(83/100 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
83% 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
20 N Clark St
Suite 2650
Chicago, IL 60602-4109
Phone: (866) 296-5262
Fax: (312) 558-1570
Street-level locationGet directions
Mailing address
20 N Clark St
Chicago, IL 60602-4109
Registry dates
- Enumerated
- 2007-04-10
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Ketterson's NPI number?
- Mark Ketterson's National Provider Identifier (NPI) is 1770706699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Ketterson's specialty?
- Mark Ketterson is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Ketterson located?
- Mark Ketterson's practice location on file with NPPES is 20 N Clark St, Chicago, IL 60602-4109.
- What is Mark Ketterson's phone number?
- The practice phone number listed in the NPPES registry for Mark Ketterson is (866) 296-5262.
- Is Mark Ketterson's NPI active?
- Yes — Mark Ketterson's NPI (1770706699) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.