What is Mark Lopez's specialty?

Mark Lopez (NPI 1619147220) is a Medicare-billing provider whose primary specialty is Internal Medicine in Las Vegas, NV.

Where does Mark Lopez practice?

Mark Lopez practices in Las Vegas, NV, based on the location reported in the CMS Medicare provider datasets for NPI 1619147220.

How much does Medicare pay Mark Lopez?

Mark Lopez (NPI 1619147220) received approximately $45K in total Medicare Part B payments, serving 229 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1619147220

Mark LopezDO

Internal MedicineLas Vegas, NVI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

295

Unique beneficiaries

—

Total services

442

Distinct HCPCS

Medicare payment

$43K

Peer benchmark

Total Medicare services vs. 818 Internal Medicine providers in NV — below median (cohort median 684).

PRESCRIBING · PART D · 2024

Total Rx claims

4,575

Beneficiaries

—

Total drug cost

$651K

Distinct drugs

104

Brand share

17.6%

Top prescribed drugs

Atorvastatin Calcium310 claims

Apixaban243 claims

Gabapentin154 claims

Levothyroxine Sodium146 claims

Amlodipine Besylate142 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Mark Lopez's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 37 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
DESERT VIEW REGIONAL MEDICAL CENTER HOLDINGS, LLC	424	1,233
Town Of Pahrump Ambulance Service Provider · Pahrump, NV	160	332
Sandesh Singh Emergency Medicine · Las Vegas, NV	69	150
Quest Diagnostics Incorporated Clinical Laboratory · Las Vegas, NV	67	186
NPI 1083674261	56	91
KABLER, HEIDI	50	117
Whitney Edmister Diagnostic Radiology · Temple, TX	46	90
George Dockendorf Emergency Medicine · Lackland A F B, TX	44	88
Elan Bomsztyk Diagnostic Radiology · Las Vegas, NV	35	64
Maureen Mccormack Diagnostic Radiology · Las Vegas, NV	33	55
Terence Scipione Diagnostic Radiology · Las Vegas, NV	32	49
Morris Schaner Diagnostic Radiology · Las Vegas, NV	31	53

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events