Physician

Lee A Tan, M.D.

According to 2025 Medicare claims, Lee Tan, M.D. (NPI: 1295056802) practices neurosurgery in the San Francisco-San Mateo-Redwood City, CA market, with the plurality of this provider's patient population coming from San Francisco, CA. This provider's primary affiliated billing organization is UCSF MEDICAL GROUP BUSINESS SERVICES (NPI: 1477624104; TIN: 943281660) and primary practice location at 94143-2204.

Tan's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 314 traditional Medicare patients, billed 1,287 HCPCS/CPT codes, and received $565,696 in Medicare payments. The top billing code was 22842 (Placement of stabilizing device to back, 3-6 spine bone segments). Part D data shows 103 prescription claims across 46 beneficiaries totaling $1,668 in drug costs, led by Naloxone Hcl (Naloxone Hcl). DME data shows 29 claims. Open Payments data shows 112 records totaling $58,513. 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 risen steadily, from $83,964 to $565,696. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $577 and ending at $1,668. 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	44	261	$83,964
2018	117	523	$249,304
2019	187	708	$298,448
2020	202	720	$302,878
2021	180	799	$372,772
2022	166	820	$402,878
2023	158	889	$446,311
2024	314	1,287	$565,696

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	13	21	$577
2016	N/R	N/R	N/R
2017	N/R	19	$1,408
2018	49	156	$4,783
2019	37	94	$3,171
2020	60	169	$5,525
2021	52	150	$43,594
2022	52	128	$4,352
2023	56	128	$4,616
2024	46	103	$1,668

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	N/R	N/R
2019	N/R	N/R	N/R
2020	N/R	N/R	N/R
2021	N/R	N/R	N/R
2022	N/R	N/R	N/R
2023	28	39	$113,865
2024	14	29	$58,465

* / # = 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
22842	Placement of stabilizing device to back, 3-6 spine bone segments	39	39	$620
22614	Fusion of additional segment of spine	57	292	$323
22853	Insertion of cage or mesh device to spine bone and disc space during spine fusion	91	153	$214
99205	New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	39	39	$162
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	58	60	$54

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Naloxone Hcl	Naloxone Hcl	14	150	$692
Baclofen	Baclofen	34	451	$363
Gabapentin	Gabapentin	31	1,080	$328

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
E0748	Osteogenesis stimulator, electrical, non-invasive, spinal applications	N	14	14	$58,268
K0001	Standard wheelchair	Y	N/R	15	$197

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	112	$58,513	Medtronic, Inc.
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 Lee A. Tan, M.D.?

Tedicare shows public-source Medicare data for Lee A. Tan, M.D. (NPI 1295056802), 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 Lee A. Tan, M.D. have ACO affiliation data?

No ACO affiliation record is shown in the available Tedicare data for this profile.

What billing organization is linked to Lee A. Tan, M.D.?

Lee A. Tan, M.D. is linked to UCSF MEDICAL GROUP BUSINESS SERVICES (billing NPI 1477624104) in the available physician profile data.

Does Lee A. Tan, M.D. have Open Payments data?

Lee A. Tan, M.D. has 112 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.