IndividualActive
Margaret Felczak, PHARM.D.
NPI 1437163250 · Pharmacist · Chicago, IL
Margaret Felczak, PHARM.D. is a Pharmacist provider in Chicago, IL (NPI 1437163250).
Provider details
- NPI number
- 1437163250
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- PHARM.D.
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Detailed profile(84/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
9831 S Western Ave
Chicago, IL 60643-1791
Phone: (773) 881-5632
Fax: (773) 445-1285
Street-level locationGet directions
Mailing address
14149 Rado Dr E
Homer Glen, IL 60491-8148
Registry dates
- Enumerated
- 2006-07-28
- Last updated
- 2007-07-08
Frequently asked questions
- What is Margaret Felczak's NPI number?
- Margaret Felczak's National Provider Identifier (NPI) is 1437163250, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Felczak's specialty?
- Margaret Felczak is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Margaret Felczak located?
- Margaret Felczak's practice location on file with NPPES is 9831 S Western Ave, Chicago, IL 60643-1791.
- What is Margaret Felczak's phone number?
- The practice phone number listed in the NPPES registry for Margaret Felczak is (773) 881-5632.
- Is Margaret Felczak's NPI active?
- Yes — Margaret Felczak's NPI (1437163250) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.