Constance Pietrzak, M.D.
NPI 1174788343 · Gastroenterology Physician · Hazel Crest, IL
Constance Pietrzak, M.D. is a Gastroenterology Physician provider in Hazel Crest, IL (NPI 1174788343).
Provider details
- NPI number
- 1174788343
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 125053383 (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
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
Mailing address
Registry dates
- Enumerated
- 2008-07-27
- Last updated
- 2021-12-17
- Certified
- 2021-12-17
Frequently asked questions
- What is Constance Pietrzak's NPI number?
- Constance Pietrzak's National Provider Identifier (NPI) is 1174788343, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Constance Pietrzak's specialty?
- Constance Pietrzak is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Constance Pietrzak located?
- Constance Pietrzak's practice location on file with NPPES is 17850 Kedzie Ave Ste 2100, Hazel Crest, IL 60429-2056.
- What is Constance Pietrzak's phone number?
- The practice phone number listed in the NPPES registry for Constance Pietrzak is (708) 957-4011.
- Is Constance Pietrzak's NPI active?
- Yes — Constance Pietrzak's NPI (1174788343) is active in the NPPES registry as of the last update on 2021-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.