Physician

Pornchai Leelasinjaroen, M.D.

According to 2025 Medicare claims, Pornchai Leelasinjaroen, M.D. (NPI: 1336403062) practices gastroenterology in the Kennewick-Richland, WA market, with the plurality of this provider's patient population coming from Benton, WA. This provider's primary affiliated billing organization is PUGET SOUND GASTROENTEROLOGY, PLLC (NPI: 1427185388; TIN: 911123468) and primary practice location at 99336-6712. Leelasinjaroen is affiliated with the MultiCare Health Partners (ACO ID: A5321), Collaborative ACO 30, LLC (ACO ID: A5483), and CoreHealth Alliance LLC (ACO ID: A5645), participating under the MSSP model.

Leelasinjaroen's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 323 traditional Medicare patients, billed 9,841 HCPCS/CPT codes, and received $195,690 in Medicare payments. The top billing code was 45385 (Removal of polyps or growths of large bowel using an endoscope with mechanical snare). Part D data shows 348 prescription claims across 185 beneficiaries totaling $76,636 in drug costs, led by Linzess (Linaclotide). Open Payments data shows 78 records totaling $1,686. 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 sharply higher in recent years, from $54,980 to $195,690. Similarly, Part D prescription costs have risen steadily, from $11,236 to $76,636. 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	288	636	$54,980
2019	656	1,533	$141,030
2020	402	882	$79,347
2021	486	1,038	$85,752
2022	294	637	$49,633
2023	460	10,313	$250,256
2024	323	9,841	$195,690

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	31	163	$11,236
2016	25	60	$3,898
2017	40	116	$72,416
2018	87	224	$269,948
2019	141	486	$88,592
2020	139	473	$147,644
2021	179	551	$429,930
2022	170	538	$671,174
2023	170	358	$714,687
2024	185	348	$76,636

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
45385	Removal of polyps or growths of large bowel using an endoscope with mechanical snare	112	114	$197
99204	New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	44	44	$120
43239	Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	68	72	$78
45380	Biopsy of large bowel using a flexible endoscope	45	45	$74
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	57	68	$69

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Linzess	Linaclotide	11	360	$6,815
Peg 3350-Electrolyte	Sodium Chloride/Nahco3/Kcl/Peg	91	123	$1,809
Sod Sulf-Potass Sulf-Mag Sulf	Sodium, Potassium,mag Sulfates	13	17	$798
Omeprazole	Omeprazole	39	2,798	$498
Lactulose	Lactulose	49	285	$360

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.	78	$1,686	Lilly USA, LLC
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 Pornchai Leelasinjaroen, M.D.?

Tedicare shows public-source Medicare data for Pornchai Leelasinjaroen, M.D. (NPI 1336403062), 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 Pornchai Leelasinjaroen, M.D. have ACO affiliation data?

Pornchai Leelasinjaroen, M.D. is shown with ACO affiliation data for MultiCare Health Partners (MSSP, ACO ID A5321), Collaborative ACO 30, LLC (MSSP, ACO ID A5483), and CoreHealth Alliance LLC (MSSP, ACO ID A5645).

What billing organization is linked to Pornchai Leelasinjaroen, M.D.?

Pornchai Leelasinjaroen, M.D. is linked to PUGET SOUND GASTROENTEROLOGY, PLLC (billing NPI 1427185388) in the available physician profile data.

Does Pornchai Leelasinjaroen, M.D. have Open Payments data?

Pornchai Leelasinjaroen, M.D. has 78 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.