Alejandra Perez-Tamayo, MD
Surgical Oncology Physician · Chicago, IL
Alejandra Perez-Tamayo, MD is a surgical oncology physician with a practice address in Chicago, Illinois, and NPI 1134115231, issued on Sep 23, 2005. Check the license (Illinois 036065562, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Alejandra Perez-Tamayo
- Credential
- MD
- Primary taxonomy
- Surgical Oncology Physician 2086X0206X
- License number
- 036065562 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1801 W Taylor St, Chicago, IL 60612
- Phone
- (312) 996-6883
- Enumerated
- Sep 23, 2005
- Record last updated
- Mar 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (312) 413-1206
- Medicaid ID
- 036065562 IL
- Entity
- Type 1 · individual
8 nearest surgical oncology physician records → All 71 in Illinois → Look up another NPI →
Also registered at 1801 W Taylor St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alejandra Perez-Tamayo 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 036065562Check 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: $219.18
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 1,132 providers of this specialty with any payment received $4,224.74 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.
Alejandra Perez-Tamayo among 71 surgical oncology physician records in Illinois
Alejandra Perez-Tamayo, MD is one of 71 surgical oncology physician records with a practice address in Illinois. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 77% of these records are
- Record last updated2021 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Oncology Physician providers in Illinois
There are 71 surgical oncology physician records in Illinois.
All 71 in Illinois → Every provider in Chicago → Surgical Oncology Physician nationwide →
The 8 surgical oncology physician records with the nearest ZIP codes
- Katherina Boettge, MDChicago, IL 606121427686963
- Jeffrey Bork, M.D.Chicago, IL 606121669482378
- Matthew Dixon, M.D.Chicago, IL 606121083842009
- Keith DookeranChicago, IL 606121851494835
- Aslam Ejaz, M.D.Chicago, IL 606121275857120
- Taylor Gipson, PA-CChicago, IL 606121184428575
- Stuart LipnickChicago, IL 606121831100098
- Cristina Odonoghue, M.D., M.P.H.Chicago, IL 606121508032715
Common questions
What is Alejandra Perez-Tamayo, MD's NPI number?
Alejandra Perez-Tamayo, MD's National Provider Identifier (NPI) is 1134115231, issued on Sep 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Alejandra Perez-Tamayo, MD located?
The NPPES record lists a practice address at 1801 W Taylor St, Chicago, IL, 60612. Phone: (312) 996-6883. Providers update this record themselves, so call before visiting.
How can I verify Alejandra Perez-Tamayo, MD's license?
NPPES lists Illinois license number 036065562, 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.