Physician

Andrew Lee Mermelstein, MD

According to 2025 Medicare claims, Andrew Mermelstein, MD (NPI: 1215920335) practices rheumatology in the Montgomery County-Bucks County-Chester County, PA market, with the plurality of this provider's patient population coming from Montgomery, PA. This provider's primary affiliated billing organization is RHEUMATOLOGY ASSOCIATES LTD (NPI: 1376536177; TIN: 23-1882160) and primary practice location at 19401-1389.

Mermelstein's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 956 traditional Medicare patients, billed 99,931 HCPCS/CPT codes, and received $1,044,492 in Medicare payments. The top billing code was 99214 (Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more). Part D data shows 3,536 prescription claims across 609 beneficiaries totaling $1,434,555 in drug costs, led by Enbrel Sureclick (Etanercept). 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 did not follow a clear longitudinal pattern. Concurrently, Part D prescription costs have risen steadily, from $795,004 to $1,434,555. 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	681	56,042	$1,171,030
2016	698	74,083	$1,595,765
2017	728	73,294	$1,480,733
2018	758	93,647	$1,683,951
2019	784	111,275	$1,816,114
2020	765	137,012	$1,858,148
2021	788	153,087	$1,730,472
2022	789	159,196	$1,570,497
2023	866	173,074	$1,597,539
2024	956	99,931	$1,044,492

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	515	4,138	$795,004
2016	501	4,302	$760,061
2017	493	3,911	$780,184
2018	552	3,936	$896,567
2019	553	3,715	$911,099
2020	550	3,571	$949,861
2021	616	3,678	$947,018
2022	552	3,222	$1,022,248
2023	560	3,363	$983,038
2024	609	3,536	$1,434,555

DME Billing Trend

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

No connected DME records

* / # = 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
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	372	683	$88
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	414	521	$63
J0897	Injection, denosumab, 1 mg	138	9,180	$21
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	521	861	$11
96372	Injection of drug or substance under skin or into muscle	172	266	$11

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Enbrel Sureclick	Etanercept	52	2,632	$671,846
Humira(Cf) Pen	Adalimumab	38	1,176	$269,310
Humira(Cf)	Adalimumab	13	588	$137,828
Forteo	Teriparatide	22	616	$109,306
Xeljanz Xr	Tofacitinib Citrate	11	330	$74,058

Top 5 DME services in 2024

No connected or detailed DME service-level records for 2024.

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 Andrew Lee Mermelstein, MD?

Tedicare shows public-source Medicare data for Andrew Lee Mermelstein, MD (NPI 1215920335), 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 Andrew Lee Mermelstein, MD have ACO affiliation data?

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

What billing organization is linked to Andrew Lee Mermelstein, MD?

Andrew Lee Mermelstein, MD is linked to RHEUMATOLOGY ASSOCIATES LTD (billing NPI 1376536177) in the available physician profile data.

Does Andrew Lee Mermelstein, 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.