Physician

Peter D. G. Chang Sing, M.D.

According to 2025 Medicare claims, Peter Sing, M.D. (NPI: 1386678902) practices cardiac electrophysiology in the Santa Rosa-Petaluma, CA market, with the plurality of this provider's patient population coming from Sonoma, CA. This provider's primary affiliated billing organization is PROVIDENCE MEDICAL FOUNDATION (NPI: 1740584473; TIN: 330185031) and primary practice location at 95405-4801. Sing is affiliated with the Health Connect Partners, LLC (ACO ID: A2342) and Adventist Health Accountable Care, LLC (ACO ID: A3873), participating under the MSSP model.

Sing's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 849 traditional Medicare patients, billed 4,527 HCPCS/CPT codes, and received $520,906 in Medicare payments. The top billing code was 93656 (Comprehensive electrophysiologic evaluation with catheter destruction of abnormality causing atrial fibrillation (uncoordinated contraction of upper chambers of heart) by pulmonary vein isolation). Part D data shows 2,334 prescription claims across 400 beneficiaries totaling $784,723 in drug costs, led by Eliquis (Apixaban). DME data shows 23 claims. Open Payments data shows 37 records totaling $2,708. 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 changed little. Concurrently, Part D prescription costs have moved sharply higher in recent years, from $233,224 to $784,723. 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	950	4,000	$505,075
2016	1,222	4,501	$561,308
2017	1,144	4,675	$571,848
2018	1,141	4,111	$444,148
2019	1,225	4,576	$567,427
2020	765	3,067	$463,858
2021	854	3,436	$585,705
2022	844	3,161	$504,413
2023	899	4,228	$510,175
2024	849	4,527	$520,906

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	375	1,889	$233,224
2016	378	1,951	$261,480
2017	395	2,102	$302,510
2018	405	2,456	$405,361
2019	392	2,368	$475,435
2020	317	1,931	$500,252
2021	356	2,088	$572,989
2022	370	2,206	$607,102
2023	383	2,316	$755,486
2024	400	2,334	$784,723

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	13	13	$706
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	13	13	$1,428
2021	31	31	$3,434
2022	31	31	$3,459
2023	40	40	$4,938
2024	23	23	$2,927

* / # = 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
93656	Comprehensive electrophysiologic evaluation with catheter destruction of abnormality causing atrial fibrillation (uncoordinated contraction of upper chambers of heart) by pulmonary vein isolation	166	169	$721
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	576	1,102	$101
93623	Programming of heart rhythm stimulation after drug infusion	186	190	$55
93000	Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report	410	734	$12
93246	Heart rhythm recording of continous external ekg over 8-15 days	192	217	$10

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Eliquis	Apixaban	387	18,427	$350,630
Entresto	Sacubitril/Valsartan	154	5,238	$115,811
Multaq	Dronedarone Hcl	114	4,425	$115,779
Xarelto	Rivaroxaban	87	5,010	$93,457
Jardiance	Empagliflozin	61	2,870	$53,968

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
L3670	Shoulder orthosis, acromio/clavicular (canvas and webbing type), prefabricated, off-the-shelf	N	23	23	$2,927

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	37	$2,708	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 Peter D. G. Chang Sing, M.D.?

Tedicare shows public-source Medicare data for Peter D. G. Chang Sing, M.D. (NPI 1386678902), 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 Peter D. G. Chang Sing, M.D. have ACO affiliation data?

Peter D. G. Chang Sing, M.D. is shown with ACO affiliation data for Health Connect Partners, LLC (MSSP, ACO ID A2342) and Adventist Health Accountable Care, LLC (MSSP, ACO ID A3873).

What billing organization is linked to Peter D. G. Chang Sing, M.D.?

Peter D. G. Chang Sing, M.D. is linked to PROVIDENCE MEDICAL FOUNDATION (billing NPI 1740584473) in the available physician profile data.

Does Peter D. G. Chang Sing, M.D. have Open Payments data?

Peter D. G. Chang Sing, M.D. has 37 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.