Physician

Walter C. Lang, D.O.

According to 2025 Medicare claims, Walter Lang, D.O. (NPI: 1548244304) practices internal medicine in the Warren-Troy-Farmington Hills, MI market, with the plurality of this provider's patient population coming from Lapeer, MI. This provider's primary affiliated billing organization is GERIATRIC ASSOCIATES OF MICHIGAN, PLLC (NPI: 1881172989; TIN: 831333724) and primary practice location at 48446-2426. Lang is affiliated with the Advanced Illness Partners, LLC (ACO ID: D0097), participating under the REACH model.

Lang's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 259 traditional Medicare patients, billed 1,432 HCPCS/CPT codes, and received $101,560 in Medicare payments. The top billing code was 99305 (Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes). Part D data shows 4,387 prescription claims across 147 beneficiaries totaling $289,435 in drug costs, led by Eliquis (Apixaban). DME data shows 26 claims. No Open Payments records. 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 $127,649 and ending at $101,560. Concurrently, Part D prescription costs have moved from a higher plateau to a lower plateau, from $462,906 to $289,435. In contrast, DME billing represents a smaller volume and moved up and down with repeated peaks and valleys, starting at $19,033 and ending at $4,149.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	570	1,644	$127,649
2016	792	1,934	$142,722
2017	578	1,780	$126,181
2018	736	2,417	$178,203
2019	778	2,436	$164,395
2020	319	987	$70,912
2021	289	1,032	$83,253
2022	382	2,055	$151,331
2023	279	1,197	$94,724
2024	259	1,432	$101,560

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	449	6,158	$462,906
2016	645	12,283	$742,604
2017	437	9,048	$544,958
2018	520	13,543	$861,869
2019	462	14,409	$820,395
2020	247	6,163	$405,986
2021	105	1,917	$127,089
2022	138	3,162	$180,167
2023	149	3,820	$227,471
2024	147	4,387	$289,435

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	16	253	$8,936
2016	40	334	$22,497
2017	N/R	214	$11,374
2018	56	459	$43,742
2019	115	850	$57,623
2020	N/R	102	$7,287
2021	N/R	N/R	N/R
2022	N/R	51	$1,373
2023	N/R	N/R	N/R
2024	N/R	26	$1,179

* / # = 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
99305	Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	121	137	$101
99309	Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	123	629	$81
99308	Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more	111	502	$59
99307	Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes	23	27	$32
G0179	Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a	17	32	$27

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Eliquis	Apixaban	165	3,082	$62,562
Zenpep	Lipase/Protease/Amylase	14	403	$40,439
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	14	420	$9,657
Myrbetriq	Mirabegron	19	518	$8,870
Jardiance	Empagliflozin	18	409	$8,851

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
A6446	Conforming bandage, non-elastic, knitted/woven, sterile, width greater than or equal to three inches and less than five inches, per yard	N	N/R	13	$1,044
A4450	Tape, non-waterproof, per 18 square inches	N	N/R	13	$135

Open Payments Summary

No connected Open Payments records were found for this physician in General Payments, Research Payments, or Ownership / Investment Interests.

Explore More Providers

FAQ

What Medicare data is available for Walter C. Lang, D.O.?

Tedicare shows public-source Medicare data for Walter C. Lang, D.O. (NPI 1548244304), 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 Walter C. Lang, D.O. have ACO affiliation data?

Walter C. Lang, D.O. is shown with ACO affiliation data for Advanced Illness Partners, LLC (REACH, ACO ID D0097).

What billing organization is linked to Walter C. Lang, D.O.?

Walter C. Lang, D.O. is linked to GERIATRIC ASSOCIATES OF MICHIGAN, PLLC (billing NPI 1881172989) in the available physician profile data.

Does Walter C. Lang, D.O. have Open Payments data?

No connected Open Payments records are shown for this physician in the available General Payments, Research Payments, or Ownership / Investment Interests 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.