Gregorio Chejfec
Clinical Pathology/Laboratory Medicine Physician · Chicago, IL
Gregorio Chejfec is a clinical pathology/laboratory medicine physician with a practice address in Chicago, Illinois, and NPI 1659383263, issued on Aug 12, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Gregorio Chejfec
- Primary taxonomy
- Clinical Pathology/Laboratory Medicine Physician 207ZP0105X
- Practice location
- 1740 W Taylor St, Chicago, IL 60612
- Phone
- (866) 600-2273
- Enumerated
- Aug 12, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 1740 W Taylor St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Leena Abbas, MDStudent in an Organized Health Care Education/Training Program1679376594
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- Ivy AbrahamHematology & Oncology Physician1497172845
- Rohit Abraham, MD, MPH, MATPsychiatry Physician1013478932
- Ereni Abuaita, DOInternal Medicine Physician1013710961
Verify Gregorio Chejfec in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Clinical Pathology/Laboratory Medicine Physician providers in Illinois
There are 63 clinical pathology/laboratory medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other clinical pathology/laboratory medicine physician records in Illinois
- Adriana Acurio, M.D.Chicago, IL1346568748
- Hytham Al-Masri, M.D.Tinley Park, IL1841299591
- John Anastasi, MDBurr Ridge, IL1205988987
- Beverly Baron, MDBurr Ridge, IL1114079894
- Kathleen BeavisChicago, IL1689794075
- Renuka Bhaskar, MDBloomington, IL1235163056
- Saskia Biskup, MD, PHDChicago, IL1336962505
- Jayme Brentan, MDChicago, IL1023077633
- Clarence ChanChicago, IL1285173906
- Angella Charnot-Katsikas, M.D.Chicago, IL1114158342
Common questions
What is Gregorio Chejfec's NPI number?
Gregorio Chejfec's National Provider Identifier (NPI) is 1659383263, issued on Aug 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregorio Chejfec located?
The NPPES record lists a practice address at 1740 W Taylor St, Chicago, IL, 60612. Phone: (866) 600-2273. Providers update this record themselves, so call before visiting.
How can I verify Gregorio Chejfec's license?
Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.