Marlene Lopez, M.D
NPI 1184819534 · Specialist · Long Beach, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marlene Lopez, M.D is a Specialist provider in Long Beach, CA (NPI 1184819534).
Provider details
- NPI number
- 1184819534
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D
- Sex
- Female
- Sole proprietor
- No
- License
- G71808 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
18 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 48 | 35 |
| Metformin Hcl | 39 | 33 |
| Atorvastatin Calcium | 36 | 29 |
| Hydrochlorothiazide | 21 | 17 |
| Losartan Potassium | 20 | 11 |
| Lisinopril | 16 | 13 |
| Omeprazole | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$60 across 3 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
- 2007-09-10
- Last updated
- 2010-07-20
Frequently asked questions
- What is Marlene Lopez's NPI number?
- Marlene Lopez's National Provider Identifier (NPI) is 1184819534, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marlene Lopez's specialty?
- Marlene Lopez is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Marlene Lopez located?
- Marlene Lopez's practice location on file with NPPES is 455 E Columbia St Ste 201, Long Beach, CA 90806-1620.
- What is Marlene Lopez's phone number?
- The practice phone number listed in the NPPES registry for Marlene Lopez is (562) 933-0400.
- Does Marlene Lopez accept Medicare?
- Marlene Lopez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marlene Lopez's NPI active?
- Yes — Marlene Lopez's NPI (1184819534) is active in the NPPES registry as of the last update on 2010-07-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.