Physician

Timothy Frederick Doberstein, MD

According to 2025 Medicare claims, Timothy Doberstein, MD (NPI: 1841446135) practices internal medicine in the State College, PA market, with the plurality of this provider's patient population coming from Centre, PA. This provider's primary affiliated billing organization is GEISINGER CLINIC (NPI: 1093767915; TIN: 236291113) and primary practice location at 16801-7974. Doberstein is affiliated with the Keystone ACO (ACO ID: A1552), participating under the MSSP model.

Doberstein's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 464 traditional Medicare patients, billed 1,910 HCPCS/CPT codes, and received $76,510 in Medicare payments. The top billing code was 90662 (Influenza vaccine split virus, preservative free). Part D data shows 10,748 prescription claims across 863 beneficiaries totaling $1,110,774 in drug costs, led by Ozempic (Semaglutide). DME data shows 132 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 $124,909 and ending at $76,510. Concurrently, Part D prescription costs have moved sharply higher in recent years, from $382,911 to $1,110,774. In contrast, DME billing represents a smaller volume and moved sharply higher in recent years, from $6,026 to $14,689.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	403	5,703	$124,909
2016	464	2,517	$82,680
2017	494	3,472	$112,117
2018	528	1,785	$80,597
2019	528	3,703	$92,271
2020	486	1,347	$65,645
2021	505	2,970	$87,474
2022	620	26,567	$461,978
2023	582	14,399	$289,098
2024	464	1,910	$76,510

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	592	7,618	$382,911
2016	740	8,611	$378,138
2017	847	10,048	$445,242
2018	945	10,534	$560,595
2019	850	9,551	$524,795
2020	727	8,683	$570,300
2021	693	8,677	$631,195
2022	865	11,127	$996,689
2023	907	11,351	$1,172,889
2024	863	10,748	$1,110,774

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	19	176	$6,734
2016	18	169	$5,178
2017	23	176	$4,379
2018	37	188	$2,900
2019	42	137	$1,526
2020	38	107	$1,439
2021	36	125	$2,140
2022	34	174	$7,322
2023	21	116	$1,355
2024	15	132	$11,439

* / # = 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
90662	Influenza vaccine split virus, preservative free	81	82	$81
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	326	504	$79
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	51	53	$56
G0008	Administration of influenza virus vaccine	87	88	$31
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	336	510	$11

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Ozempic	Semaglutide	132	5,278	$169,547
Eliquis	Apixaban	139	8,400	$157,769
Jardiance	Empagliflozin	107	7,739	$147,168
Trulicity	Dulaglutide	31	1,260	$40,744
Zenpep	Lipase/Protease/Amylase	12	360	$36,182

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
A4239	Supply allowance for non-adjunctive, non-implanted continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service	N	N/R	25	$9,288
E1390	Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate	Y	N/R	12	$669
A4253	Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips	N	15	34	$608
E0260	Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress	Y	N/R	12	$552
K0001	Standard wheelchair	Y	N/R	17	$201

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 Timothy Frederick Doberstein, MD?

Tedicare shows public-source Medicare data for Timothy Frederick Doberstein, MD (NPI 1841446135), 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 Timothy Frederick Doberstein, MD have ACO affiliation data?

Timothy Frederick Doberstein, MD is shown with ACO affiliation data for Keystone ACO (MSSP, ACO ID A1552).

What billing organization is linked to Timothy Frederick Doberstein, MD?

Timothy Frederick Doberstein, MD is linked to GEISINGER CLINIC (billing NPI 1093767915) in the available physician profile data.

Does Timothy Frederick Doberstein, MD 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.