Guy Robert Randolph, M.D.
Pediatric Cardiology Physician · Chicago, IL
Guy Robert Randolph, M.D. is a pediatric cardiology physician with a practice address in Chicago, Illinois, and NPI 1982660635, issued on Apr 21, 2006. Check the license (Illinois 036100179, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Guy Robert Randolph
- Credential
- M.D.
- Primary taxonomy
- Pediatric Cardiology Physician 2080P0202X
- License number
- 036100179 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2923 N California Ave Ste 230, Chicago, IL 60618
- Phone
- (312) 951-5800
- Enumerated
- Apr 21, 2006
- Record last updated
- Aug 6, 2026
- Fax
- (312) 951-5816
- Medicaid ID
- 036100179 IL
- Entity
- Type 1 · individual
8 nearest pediatric cardiology physician records → All 162 in Illinois → Look up another NPI →
Also registered at 2923 N California Ave Ste 230
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Thomas Weigel, MDPediatric Cardiology Physician1376507137
Verify Guy Robert Randolph 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 036100179Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average pediatric cardiology physician in 2024
48 Medicare Part D claims, against an average of 74 among the 518 providers of this specialty who prescribed in Part D.
Most prescribed
- Spironolactone11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Guy Robert Randolph among 162 pediatric cardiology physician records in Illinois
Guy Robert Randolph, M.D. is one of 162 pediatric cardiology physician records with a practice address in Illinois. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 72% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2026 · 27% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Cardiology Physician providers in Illinois
There are 162 pediatric cardiology physician records in Illinois.
All 162 in Illinois → Every provider in Chicago → Pediatric Cardiology Physician nationwide →
The 8 pediatric cardiology physician records with the nearest ZIP codes
- Thomas Weigel, MDChicago, IL 606181376507137
- Grace Choi, MDChicago, IL 606141205064623
- Roger De Freitas, M.D.Chicago, IL 606141891893814
- Barbara Deal, M.DChicago, IL 606141811919681
- Catherine Duffy, MDChicago, IL 606141215905922
- Mary McBride, MDChicago, IL 606141255506614
- Elfriede Pahl, MDChicago, IL 606141740210772
- Sabrina Tsao, MBBSChicago, IL 606141134184120
Common questions
What is Guy Robert Randolph, M.D.'s NPI number?
Guy Robert Randolph, M.D.'s National Provider Identifier (NPI) is 1982660635, issued on Apr 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Guy Robert Randolph, M.D. located?
The NPPES record lists a practice address at 2923 N California Ave Ste 230, Chicago, IL, 60618. Phone: (312) 951-5800. Providers update this record themselves, so call before visiting.
How can I verify Guy Robert Randolph, M.D.'s license?
NPPES lists Illinois license number 036100179, 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.
How much does Guy Robert Randolph, M.D. prescribe under Medicare Part D?
In 2024, Guy Robert Randolph, M.D. had 48 Medicare Part D claims; the average among pediatric cardiology physician prescribers was 74. Part D covers Medicare prescriptions only.
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.