Mark Lopez, DO
NPI 1619147220 · Internal Medicine Physician · Las Vegas, NV
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Lopez, DO is a Internal Medicine Physician provider in Las Vegas, NV (NPI 1619147220).
Provider details
- NPI number
- 1619147220
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- SL0514 (NV)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
442 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 163 | $166 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 98 | $76 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 68 | $113 |
| Initial Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 35 Minutes99305 | 61 | $129 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 27 | $110 |
| Advance Care Planning, First 30 Minutes99497 | 25 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 108 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 310 | 80 |
| Apixabanbrand: Eliquis | 243 | 43 |
| Gabapentin | 154 | 49 |
| Levothyroxine Sodium | 146 | 42 |
| Amlodipine Besylate | 142 | 47 |
| Pantoprazole Sodium | 138 | 41 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$49 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-03-11
- Last updated
- 2020-10-28
- Certified
- 2020-10-28
Frequently asked questions
- What is Mark Lopez's NPI number?
- Mark Lopez's National Provider Identifier (NPI) is 1619147220, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Lopez's specialty?
- Mark Lopez is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Lopez located?
- Mark Lopez's practice location on file with NPPES is 4700 Las Vegas Blvd N, Las Vegas, NV 89191-6600.
- What is Mark Lopez's phone number?
- The practice phone number listed in the NPPES registry for Mark Lopez is (702) 653-3251.
- Does Mark Lopez accept Medicare?
- Mark Lopez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Lopez's NPI active?
- Yes — Mark Lopez's NPI (1619147220) is active in the NPPES registry as of the last update on 2020-10-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.