Physician

Geoffrey Thomas Sasaki, M.D.

According to 2025 Medicare claims, Geoffrey Sasaki, M.D. (NPI: 1124212386) practices pathology in the Chico, CA market, with the plurality of this provider's patient population coming from Butte, CA. This provider's primary affiliated billing organization is PATHOLOGY SCIENCES MEDICAL GROUP (NPI: 1497705537; TIN: 946325426) and primary practice location at 95926-2341.

Sasaki's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 3,118 traditional Medicare patients, billed 8,487 HCPCS/CPT codes, and received $525,723 in Medicare payments. The top billing code was 88360 (Microscopic genetic analysis of tumor, manual). Open Payments data shows 2 records totaling $150. 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's Medicare Part B carrier billing has moved from a lower plateau to a higher plateau, from $203,685 to $525,723. Concurrently, this provider has fewer than 5 years of reported Part D prescription costs data, so a reliable trend cannot be assigned. 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	2,388	5,148	$203,685
2016	2,227	5,322	$213,844
2017	1,853	4,465	$173,524
2018	1,994	4,750	$188,021
2019	2,383	5,748	$259,938
2020	2,603	6,727	$331,784
2021	2,729	6,964	$368,026
2022	2,940	7,349	$428,148
2023	2,664	6,666	$381,044
2024	3,118	8,487	$525,723

Part D Events Trend

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

No connected Part D records

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
88360	Microscopic genetic analysis of tumor, manual	230	366	$93
88312	Special stained specimen slides to identify organisms including interpretation and report	428	578	$91
88342	Special stained specimen slides to examine tissue, initial procedure	808	1,119	$86
88341	Special stained specimen slides to examine tissue, each additional procedure	500	1,116	$69
88305	Pathology examination of tissue using a microscope, intermediate complexity	2,906	4,726	$51

Top 5 Part D drugs in 2024

By total drug costs.

No connected Part D drug-level records for 2024.

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	$150	Janssen Biotech, 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 Geoffrey Thomas Sasaki, M.D.?

Tedicare shows public-source Medicare data for Geoffrey Thomas Sasaki, M.D. (NPI 1124212386), 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 Geoffrey Thomas Sasaki, M.D. have ACO affiliation data?

No ACO affiliation record is shown in the available Tedicare data for this profile.

What billing organization is linked to Geoffrey Thomas Sasaki, M.D.?

Geoffrey Thomas Sasaki, M.D. is linked to PATHOLOGY SCIENCES MEDICAL GROUP (billing NPI 1497705537) in the available physician profile data.

Does Geoffrey Thomas Sasaki, M.D. have Open Payments data?

Geoffrey Thomas Sasaki, M.D. 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.