Physician

Alejandra Perez-Tamayo

According to 2025 Medicare claims, Alejandra Perez-Tamayo (NPI: 1821416165) practices colorectal surgery (formerly proctology) in the Chicago-Naperville-Schaumburg, IL market, with the plurality of this provider's patient population coming from Cook, IL. This provider's primary affiliated billing organization is COOK COUNTY (NPI: 1821385170; TIN: 366006541) and primary practice location at 60612-3714. Perez-Tamayo is affiliated with the OSF Healthcare System (ACO ID: A3289), participating under the MSSP model.

Perez-Tamayo's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 94 traditional Medicare patients, billed 178 HCPCS/CPT codes, and received $18,655 in Medicare payments. The top billing code was 99203 (New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more). Part D data shows 50 prescription claims across 33 beneficiaries totaling $500 in drug costs, led by Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl). Open Payments data shows 2 records totaling $171. You can download detailed data with all billing codes (2015-2024). For more recent data, please contact us.

Over the past 10 years, this provider has fewer than 5 years of reported Medicare Part B carrier billing data, so a reliable trend cannot be assigned. Concurrently, Part D prescription costs started with an early spike, then settled into a lower baseline, moving from $16,505 to $500. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.

Part B Carrier Billing Trend

Medicare payment trend, with N of patients and claim lines in the table.

Year	Patients	Clm Lines	Payment
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	N/R	N/R	N/R
2018	N/R	N/R	N/R
2019	N/R	N/R	N/R
2020	N/R	N/R	N/R
2021	96	188	$19,608
2022	66	157	$12,366
2023	87	175	$23,978
2024	94	178	$18,655

Part D Events Trend

Drug cost trend, with N of patients and prescription claims in the table.

Year	Patients	Claims	Drug Cost
2015	64	243	$16,505
2016	40	84	$2,267
2017	35	55	$4,463
2018	24	47	$872
2019	20	29	$3,113
2020	N/R	14	$358
2021	46	63	$1,846
2022	38	58	$803
2023	41	62	$624
2024	33	50	$500

DME Billing Trend

Medicare payment trend, with N of patients and DME claim records in the table.

No connected DME records

* / # = suppressed by CMS; 0 = reported zero; N/R = not reported or blank.

Top 5 Part B carrier billing codes in 2024

By total payments.

Code	Description	Patients	Clm Lines	Total Payment
99203	New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$57
91122	Study of rectum sensitivity and function	13	13	$56
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	20	26	$43
91120	Test for tone and sensation of rectum and anus	13	13	$31
51784	Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings	13	13	$24

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Gavilyte-G	Peg3350/Sod Sulf,bicarb,cl/Kcl	11	11	$158

Top 5 DME services in 2024

No connected or detailed DME service-level records for 2024.

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	2	$171	Axonics, Inc.
Research Payments	Reported research-related payment or transfer-of-value amount.	0	$0	N/R
Ownership / Investment Interests	Reported value of ownership or investment interests.	0	$0	N/R

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FAQ

What Medicare data is available for Alejandra Perez-Tamayo?

Tedicare shows public-source Medicare data for Alejandra Perez-Tamayo (NPI 1821416165), including provider identity, specialty, market context, Medicare Part B activity, Part D prescribing, DME records, Open Payments where available, billing organization details, and ACO affiliation signals where available. Profile data covers 2015-2024, with current attribution based on 2025 claims where available.

Does Alejandra Perez-Tamayo have ACO affiliation data?

Alejandra Perez-Tamayo is shown with ACO affiliation data for OSF Healthcare System (MSSP, ACO ID A3289).

What billing organization is linked to Alejandra Perez-Tamayo?

Alejandra Perez-Tamayo is linked to COOK COUNTY (billing NPI 1821385170) in the available physician profile data.

Does Alejandra Perez-Tamayo have Open Payments data?

Alejandra Perez-Tamayo has 2 connected Open Payments records in the available 2024 summary data.

Can I download physician-level Medicare data from Tedicare?

Yes. Tedicare provides sample physician export data and paid custom physician data exports for research, planning, outreach, and market analysis. Exports can include physician profile fields, market and specialty context, billing organization details, ACO affiliation signals where available, and Medicare utilization data.