Calvin Chao
Vascular Surgery Physician · Chicago, IL
Calvin Chao is a vascular surgery physician with a practice address in Chicago, Illinois, and NPI 1124588264, issued on Mar 24, 2019. Check the license (Illinois 125.075029, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Calvin Chao
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License number
- 125.075029 IL
Self-reported in NPPES; status is on the state search - Practice location
- 251 E Huron St, Chicago, IL 60611
- Phone
- (312) 926-2000
- Enumerated
- Mar 24, 2019
- Record last updated
- Jun 20, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest vascular surgery physician records → All 197 in Illinois → Look up another NPI →
Also registered at 251 E Huron St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian Abarbanel, MDPhysical Medicine & Rehabilitation Physician1124600291
- Mohamed Abazeed, MD, PHDRadiation Oncology Physician1205096609
- Allison AbbottCertified Registered Nurse Anesthetist1720446594
- Kathryn AbbottPsychiatry Physician1295537561
- Ramez Abdalla, M.B., B. CHNeuroradiology Physician1407410392
- Dena Abdelhameed, PHARM.D.Nuclear Pharmacist1073954301
Verify Calvin Chao 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 125.075029Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $9,738.35
18 payments; by number, the most common kind was food and beverage; the largest payer was Cook Incorporated. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Calvin Chao among 197 vascular surgery physician records in Illinois
Calvin Chao is one of 197 vascular surgery physician records with a practice address in Illinois. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 84% of them.
- NPI issued2019 · 84% of these records are older, 12% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2019 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular Surgery Physician providers in Illinois
There are 197 vascular surgery physician records in Illinois.
All 197 in Illinois → Every provider in Chicago → Vascular Surgery Physician nationwide →
The 8 vascular surgery physician records with the nearest ZIP codes
- Anand Brahmandam, MBBSChicago, IL 606111568819779
- Matthew Chia, M.D.Chicago, IL 606111912369562
- Mark Eskandari, MDChicago, IL 606111790711729
- Courtney Furlough, MDChicago, IL 606111316332943
- Neel Mansukhani, M.D.Chicago, IL 606111821352683
- Chong Na, MDChicago, IL 606111932803343
- William Pearce, MDChicago, IL 606111881628139
- Margaret Reilly, MDChicago, IL 606111760019905
Common questions
What is Calvin Chao's NPI number?
Calvin Chao's National Provider Identifier (NPI) is 1124588264, issued on Mar 24, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Calvin Chao located?
The NPPES record lists a practice address at 251 E Huron St, Chicago, IL, 60611. Phone: (312) 926-2000. Providers update this record themselves, so call before visiting.
How can I verify Calvin Chao's license?
NPPES lists Illinois license number 125.075029, 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.