Physician

Adam Ronald Walker, M.D.

According to 2025 Medicare claims, Adam Walker, M.D. (NPI: 1235385964) practices urology in the Muskegon-Norton Shores, MI market, with the plurality of this provider's patient population coming from Muskegon, MI. This provider's primary affiliated billing organization is REGENTS OF THE UNIVERSITY OF MICHIGAN (NPI: 1679508873; TIN: 386006309) and primary practice location at 49444-1849. Walker is affiliated with the POM ACO (ACO ID: A1297), Trinity Health Integrated Care (ACO ID: A3454), and West Michigan Accountable Care Organization, LLC (ACO ID: A4626), participating under the MSSP model.

Walker's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 304 traditional Medicare patients, billed 756 HCPCS/CPT codes, and received $65,666 in Medicare payments. The top billing code was 99204 (New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more). Part D data shows 1,342 prescription claims across 484 beneficiaries totaling $461,866 in drug costs, led by Xtandi (Enzalutamide). DME data shows 169 claims. Open Payments data shows 4 records totaling $189. 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 up and down with repeated peaks and valleys, starting at $25,399 and ending at $65,666. Concurrently, Part D prescription costs have moved sharply higher in recent years, from $3,226 to $461,866. In contrast, DME billing represents a smaller volume and moved up and down with repeated peaks and valleys, starting at $223 and ending at $727.

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	100	340	$25,399
2018	366	1,664	$107,073
2019	402	3,173	$146,756
2020	267	1,676	$100,038
2021	321	9,443	$145,436
2022	289	1,662	$57,915
2023	308	643	$56,994
2024	304	756	$65,666

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	60	88	$3,226
2018	268	556	$21,148
2019	285	800	$135,086
2020	294	772	$210,356
2021	367	1,055	$259,150
2022	384	1,142	$298,404
2023	455	1,270	$424,824
2024	484	1,342	$461,866

DME Billing Trend

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

Year	Patients	Claims	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	49	$3,697
2019	N/R	92	$9,642
2020	N/R	126	$12,019
2021	N/R	157	$31,284
2022	N/R	137	$30,476
2023	N/R	134	$37,347
2024	N/R	169	$47,576

* / # = 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
99204	New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	28	28	$87
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	98	115	$60
52000	Diagnostic exam of bladder and urethra using an endoscope	51	59	$53
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	94	111	$42
G2211	Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	84	96	$12

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Xtandi	Enzalutamide	18	540	$219,142
Abiraterone Acetate	Abiraterone Acetate	21	690	$107,591
Myrbetriq	Mirabegron	92	5,370	$74,947
Tamsulosin Hcl	Tamsulosin Hcl	484	37,372	$11,810
Mirabegron Er	Mirabegron	17	1,170	$8,261

Top 5 DME services in 2024

By Total Medicare Payment Amount.

HCPCS Code	HCPCS Description	Supplier Rental Indicator	Total Supplier Beneficiaries	Total Supplier Claims	Total Medicare Payment Amount
A4352	Intermittent urinary catheter; coude (curved) tip, with or without coating (teflon, silicone, silicone elastomeric, or hydrophilic, etc.), each	N	N/R	45	$39,151
A4351	Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each	N	N/R	23	$6,967
A4357	Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each	N	N/R	33	$613
A4358	Urinary drainage bag, leg or abdomen, vinyl, with or without tube, with straps, each	N	N/R	33	$414
A4332	Lubricant, individual sterile packet, each	N	N/R	12	$191

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	4	$189	Cook Medical 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

Explore More Providers

FAQ

What Medicare data is available for Adam Ronald Walker, M.D.?

Tedicare shows public-source Medicare data for Adam Ronald Walker, M.D. (NPI 1235385964), 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 Adam Ronald Walker, M.D. have ACO affiliation data?

Adam Ronald Walker, M.D. is shown with ACO affiliation data for POM ACO (MSSP, ACO ID A1297), Trinity Health Integrated Care (MSSP, ACO ID A3454), and West Michigan Accountable Care Organization, LLC (MSSP, ACO ID A4626).

What billing organization is linked to Adam Ronald Walker, M.D.?

Adam Ronald Walker, M.D. is linked to REGENTS OF THE UNIVERSITY OF MICHIGAN (billing NPI 1679508873) in the available physician profile data.

Does Adam Ronald Walker, M.D. have Open Payments data?

Adam Ronald Walker, M.D. has 4 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.