Spencer Leblang, M.D.
Anesthesiology Physician · Chicago, IL
Spencer Leblang, M.D. is an anesthesiology physician with a practice address in Chicago, Illinois, and NPI 1154852952, issued on Mar 23, 2017. Check the license (Illinois 125071253, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Spencer Leblang
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 125071253 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1653 W Congress Pkwy, Chicago, IL 60612
- Phone
- (312) 942-3134
- Enumerated
- Mar 23, 2017
- Record last updated
- Jul 17, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20240219003262); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2017
- Entity
- Type 1 · individual
Also registered at 1653 W Congress Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Raid Abdulla, MDPediatric Cardiology Physician1710037742
- Pooja AgarwalPsychiatry Physician1407411689
- Heidi Aguilar, CRNACertified Registered Nurse Anesthetist1043703796
- Jenny AhnEmergency Registered Nurse1124836622
- Marwah Al Tekreeti, MDAnatomic Pathology & Clinical Pathology Physician1891539268
- Laila Abdulla Al-Harthy, RNRegistered Nurse1619832722
Verify Spencer Leblang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 125071253Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Anesthesia Consultants OF California Medical Group IncEscondido, CA
- Palomar Anesthesia Partners IncEscondido, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
1,113 anesthesiology physician records list a practice address in Chicago
They are 1,113 of the 63,379 NPPES records with a practice address in Chicago, and 2,575 anesthesiology physician records in Illinois.
All 1,113 in Chicago → All 2,575 in Illinois → Every provider in Chicago →
Other anesthesiology physician records in Illinois
- Ossama Abdellatif, MDBerwyn, IL1760436786
- Akram Abdoue, M.D.Oak Lawn, IL1992752489
- Hassan Aboumerhi, M.D.Chicago, IL1336528637
- Jake Abramowicz, DOChicago, IL1235823782
- Antonio Abrego, MDChicago, IL1336236157
- Jose Abreu, M.D.Tinley Park, IL1538287388
- Max Ackerman, BSChicago, IL1083362644
- Sean Adams, M.D.Naperville, IL1598713661
- Simon Adanin, D.O.Chicago, IL1922241124
- Timothy Ade, MDUrbana, IL1043552672
Common questions
What is Spencer Leblang, M.D.'s NPI number?
Spencer Leblang, M.D.'s National Provider Identifier (NPI) is 1154852952, issued on Mar 23, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Spencer Leblang, M.D. located?
The NPPES record lists a practice address at 1653 W Congress Pkwy, Chicago, IL, 60612. Phone: (312) 942-3134. Providers update this record themselves, so call before visiting.
How can I verify Spencer Leblang, M.D.'s license?
NPPES lists Illinois license number 125071253, as entered by the provider. 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. Medicare files from data.cms.gov. 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.