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John Grubman, D.C.
NPI 1669659579 · Chiropractor · Chicago, IL
John Grubman, D.C. is a Chiropractor provider in Chicago, IL (NPI 1669659579).
Provider details
- NPI number
- 1669659579
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- D.C.
- Sex
- Male
- Sole proprietor
- No
- License
- 1061 (SD)
Specialties & taxonomies
Chiropractic Providers
Chiropractic 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
5940 N. Broadway St.
Chicago, IL 60660-5940
Phone: (773) 271-9355
Fax: (773) 271-9353
Street-level locationGet directions
Mailing address
5733 N Sheridan Rd
Chicago, IL 60660-4758
Registry dates
- Enumerated
- 2008-01-23
- Last updated
- 2008-01-23
Frequently asked questions
- What is John Grubman's NPI number?
- John Grubman's National Provider Identifier (NPI) is 1669659579, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Grubman's specialty?
- John Grubman is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is John Grubman located?
- John Grubman's practice location on file with NPPES is 5940 N. Broadway St., Chicago, IL 60660-5940.
- What is John Grubman's phone number?
- The practice phone number listed in the NPPES registry for John Grubman is (773) 271-9355.
- Is John Grubman's NPI active?
- Yes — John Grubman's NPI (1669659579) is active in the NPPES registry as of the last update on 2008-01-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.