John Patterson, M.D.
NPI 1174508642 · Obstetrics & Gynecology Physician · Chicago, IL
John Patterson, M.D. is a Obstetrics & Gynecology Physician provider in Chicago, IL (NPI 1174508642).
Provider details
- NPI number
- 1174508642
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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
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
Mailing address
Registry dates
- Enumerated
- 2005-12-07
- Last updated
- 2008-01-03
Frequently asked questions
- What is John Patterson's NPI number?
- John Patterson's National Provider Identifier (NPI) is 1174508642, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Patterson's specialty?
- John Patterson is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is John Patterson located?
- John Patterson's practice location on file with NPPES is 2525 S Michigan Ave, Chicago, IL 60616-2333.
- What is John Patterson's phone number?
- The practice phone number listed in the NPPES registry for John Patterson is (312) 567-6691.
- Is John Patterson's NPI active?
- Yes — John Patterson's NPI (1174508642) is active in the NPPES registry as of the last update on 2008-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.