Physician

Mark Douglas Garwood, M.D.

According to 2025 Medicare claims, Mark Garwood, M.D. (NPI: 1144231077) practices sleep medicine in the Ann Arbor, MI market, with the plurality of this provider's patient population coming from Washtenaw, MI. This provider's primary affiliated billing organization is REGENTS OF THE UNIVERSITY OF MICHIGAN (NPI: 1326307489; TIN: 386006309) and primary practice location at 48105-9484. Garwood is affiliated with the POM ACO (ACO ID: A1297), participating under the MSSP model.

Garwood's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 242 traditional Medicare patients, billed 265 HCPCS/CPT codes, and received $18,950 in Medicare payments. The top billing code was 95810 (Sleep study in sleep lab (6 years or older)). Part D data shows 218 prescription claims across 35 beneficiaries totaling $24,860 in drug costs, led by Armodafinil (Armodafinil). DME data shows 1,198 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 declined steadily, from $24,851 to $18,950. Similarly, Part D prescription costs have declined steadily, from $112,501 to $24,860. For DME billing, reported payments moved from a lower plateau to a higher plateau, from $29,004 to $46,039.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	208	315	$24,851
2016	295	395	$29,449
2017	269	333	$23,954
2018	269	325	$25,581
2019	301	340	$25,729
2020	207	239	$17,333
2021	242	286	$22,894
2022	243	271	$18,917
2023	281	315	$23,188
2024	242	265	$18,950

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	85	414	$112,501
2016	84	422	$134,145
2017	74	426	$153,435
2018	82	436	$209,211
2019	69	416	$46,889
2020	32	208	$22,192
2021	28	193	$23,270
2022	28	185	$48,339
2023	34	206	$24,701
2024	35	218	$24,860

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	250	638	$26,701
2016	277	705	$27,096
2017	363	794	$24,734
2018	507	951	$27,466
2019	551	1,235	$37,366
2020	671	1,262	$42,949
2021	631	1,249	$48,555
2022	671	1,319	$60,123
2023	816	1,649	$68,628
2024	581	1,198	$45,500

* / # = 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
95810	Sleep study in sleep lab (6 years or older)	48	49	$85
95811	Sleep study in sleep lab with continuous airway pressure (6 years or older)	30	30	$82
99204	New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	25	25	$82
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	31	31	$73
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	46	47	$49

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Armodafinil	Armodafinil	19	1,350	$2,821
Gabapentin	Gabapentin	34	2,808	$775
Methylphenidate Hcl	Methylphenidate Hcl	24	720	$410
Trazodone Hcl	Trazodone Hcl	16	1,440	$278
Methadone Hcl	Methadone Hcl	20	600	$277

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
E0601	Continuous positive airway pressure (cpap) device	Y	37	210	$6,873
A7030	Full face mask used with positive airway pressure device, each	N	49	85	$6,658
A7031	Face mask interface, replacement for full face mask, each	N	38	78	$5,023
E0470	Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device)	Y	N/R	59	$4,790
A7034	Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap	N	54	98	$4,714

Open Payments Summary

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

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FAQ

What Medicare data is available for Mark Douglas Garwood, M.D.?

Tedicare shows public-source Medicare data for Mark Douglas Garwood, M.D. (NPI 1144231077), 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 Mark Douglas Garwood, M.D. have ACO affiliation data?

Mark Douglas Garwood, M.D. is shown with ACO affiliation data for POM ACO (MSSP, ACO ID A1297).

What billing organization is linked to Mark Douglas Garwood, M.D.?

Mark Douglas Garwood, M.D. is linked to REGENTS OF THE UNIVERSITY OF MICHIGAN (billing NPI 1326307489) in the available physician profile data.

Does Mark Douglas Garwood, M.D. 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.