Gretchen Weiss, MD
NPI 1528049491 · Internal Medicine Physician · Chicago, IL
Gretchen Weiss, MD is a Internal Medicine Physician provider in Chicago, IL (NPI 1528049491).
Provider details
- NPI number
- 1528049491
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036115176 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
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
Mailing address
Registry dates
- Enumerated
- 2005-11-08
- Last updated
- 2008-12-01
Frequently asked questions
- What is Gretchen Weiss's NPI number?
- Gretchen Weiss's National Provider Identifier (NPI) is 1528049491, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Weiss's specialty?
- Gretchen Weiss is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gretchen Weiss located?
- Gretchen Weiss's practice location on file with NPPES is 181 W Madison St, Chicago, IL 60602-4510.
- What is Gretchen Weiss's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Weiss is (312) 641-2586.
- Is Gretchen Weiss's NPI active?
- Yes — Gretchen Weiss's NPI (1528049491) is active in the NPPES registry as of the last update on 2008-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.