ALEJANDRA PEREZ-TAMAYO (MD) – Surgical Oncology Physician, NPI 1134115231

ALEJANDRA PEREZ-TAMAYO (MD) is a healthcare provider. based in Chicago, Illinois. specializing in Surgical Oncology Physician. They hold the professional credentials MD. They hold a License No. 036065562 (IL). The NPI Number for ALEJANDRA PEREZ-TAMAYO (MD) is 1134115231

Main info

Female
Sole Proprietor
45 Years Of Experience
Accepts Medicare Assignment
Name
ALEJANDRA PEREZ-TAMAYO (MD)
NPI
1134115231
Phone
(312) 355-0104
Address
840 S WOOD ST # MC958
Enumeration Date
23 September 2005
Last Update Date
13 March 2021

Doctor Profile

Medical School Name
UNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Secondary Phone
-
Graduation Year
1981 (45 years ago)
PAC ID
2062403272
Group Practice PAC ID
3072422716
Professional Enrollment ID
I20040722000270

Contacts

Secure Messaging
apereztamayo174419@Direct.FranciscanAlliance.org
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience74
Completeness85
Years active:20State licenses:1Other namesUpdated within 12 months

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Provider Addresses for ALEJANDRA PEREZ-TAMAYO (MD)

  • 840 S WOOD ST # MC958

    SUITE 618

    CHICAGO, IL 606124325

    Phone: (312) 355-0104

    Fax: (312) 355-3764

    Type: Mailing

  • 1801, West Taylor Street, Near West Side, Illinois Medical District, Chicago, Cook County, Illinois, 60612, United States

    3F-OCC

    CHICAGO, IL 606124795

    Phone: (312) 996-6883

    Fax: (312) 413-1206

    Type: Location

  • 3900 W 203rd St

    Olympia Fields, IL 604611183

    Phone: (708) 679-2380

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 5 Open Payments records for all available years, with a total value of $562.

Total Amount is formed as General ($562) + Research ($0) + Ownership ($0) = $562.

Last reported payment date: 2024-06-25 • Largest payer in this snapshot: Medtronic, Inc. ($142).

Total Amount

$562

General + Research + Ownership

Payments

5

Total payment records

General Amount

$562

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-06-25

Latest reported date

Top Companies

Largest payers in this snapshot

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Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 60612)

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Provider's Procedures

ALEJANDRA PEREZ-TAMAYO (MD) performs procedures in Surgical Oncology Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
GENERAL SURGERYIL19301Partial removal of breast2321
GENERAL SURGERYIL38900Lymph node imaging during surgery1919

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3072422716View full group profile
NameSpecialtyState
Internal MedicineIL
O B S T E T R I C S/ G Y N E C O L O G YIL
-IL
-IL
Gastroenterology, Internal MedicineWI
-IL
O P H T H A L M O L O G YNY
O T O L A R Y N G O L O G YCA
Certified Registered Nurse Anesthetist (Crna)IA
G A S T R O E N T E R O L O G YFL

Reviews

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Frequently asked questions

Where can patients find ALEJANDRA PEREZ-TAMAYO (MD)'s NPI?
You can confirm ALEJANDRA PEREZ-TAMAYO (MD) with NPI 1134115231; it appears in the national provider directory.
Is ALEJANDRA PEREZ-TAMAYO (MD)'s enrollment marked active?
An active flag here means the NPI record is not in a deactivated state.
What does ALEJANDRA PEREZ-TAMAYO (MD) treat or focus on?
Patients typically see ALEJANDRA PEREZ-TAMAYO (MD) under the specialty Surgical Oncology Physician. Clinical services aligned with this taxonomy classification.
Where does public data place ALEJANDRA PEREZ-TAMAYO (MD)?
The snapshot lists Chicago, Illinois for ALEJANDRA PEREZ-TAMAYO (MD); download NPPES for the complete set.
What if Chicago, Illinois seems incomplete?
Street-level detail can be omitted — open the full address list for this NPI.

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