OrganizationActive
Dr. Gregory S. Hoffman
NPI 1114155728 · Chiropractor · Chicago, IL
Dr. Gregory S. Hoffman is a Chiropractor organization in Chicago, IL (NPI 1114155728).
Provider details
- NPI number
- 1114155728
- Entity type
- Organization
- Primary specialty
- ChiropractorChiropractic Providers
- Organization subpart
- No
- Authorized official
- Gregory Hoffman, Owner/President(224) 944-6112
- License
- 038008853 (IL)
Specialties & taxonomies
Chiropractic Providers
Profile Score
Detailed profile(85/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
401 W Ontario St
Suite 100
Chicago, IL 60654-6957
Phone: (224) 944-6112
Fax: (847) 515-4747
Street-level locationGet directions
Mailing address
Po Box 1307
Barrington, IL 60011-1307
Other names (DBA / former)
- Doing business as
- River North Chiropractic
Registry dates
- Enumerated
- 2009-06-23
- Last updated
- 2009-07-14
Frequently asked questions
- What is Dr. Gregory S. Hoffman's NPI number?
- Dr. Gregory S. Hoffman's National Provider Identifier (NPI) is 1114155728, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Dr. Gregory S. Hoffman?
- Dr. Gregory S. Hoffman is classified in the NPPES registry as Chiropractor (Chiropractic Providers).
- Where is Dr. Gregory S. Hoffman located?
- Dr. Gregory S. Hoffman's practice location on file with NPPES is 401 W Ontario St, Chicago, IL 60654-6957.
- What is Dr. Gregory S. Hoffman's phone number?
- The practice phone number listed in the NPPES registry for Dr. Gregory S. Hoffman is (224) 944-6112.
- Who is the authorized official for Dr. Gregory S. Hoffman?
- The authorized official listed on Dr. Gregory S. Hoffman's NPPES record is Gregory Hoffman, Owner/President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Dr. Gregory S. Hoffman's NPI active?
- Yes — Dr. Gregory S. Hoffman's NPI (1114155728) is active in the NPPES registry as of the last update on 2009-07-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.