Marcus De Ranieri, DO
NPI 1891351615 · Family Medicine Physician · Marina, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcus De Ranieri, DO is a Family Medicine Physician provider in Marina, CA (NPI 1891351615).
Provider details
- NPI number
- 1891351615
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A19483 (CA)
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
7 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
865 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 472 | $105 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 83 | $84 |
| Remote Monitoring of Physiologic Parameters, Initial Supply of Devices With Daily Recordings Or Programmed Alerts Transmission, Each 30 Days99454 | 73 | $54 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 67 | $176 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 46 | $53 |
| Administration of Pneumococcal Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 128 | 51 |
| Levothyroxine Sodium | 85 | 29 |
| Gabapentin | 75 | 21 |
| Losartan Potassium | 69 | 29 |
| Amlodipine Besylate | 65 | 27 |
| Bupropion Hclbrand: Bupropion Xl | 46 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 across 1 record (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
- 2019-05-16
- Last updated
- 2023-06-23
- Certified
- 2023-06-23
Frequently asked questions
- What is Marcus De Ranieri's NPI number?
- Marcus De Ranieri's National Provider Identifier (NPI) is 1891351615, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus De Ranieri's specialty?
- Marcus De Ranieri is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marcus De Ranieri located?
- Marcus De Ranieri's practice location on file with NPPES is 2930 2nd Ave Ste 200, Marina, CA 93933-6244.
- What is Marcus De Ranieri's phone number?
- The practice phone number listed in the NPPES registry for Marcus De Ranieri is (831) 532-2100.
- Does Marcus De Ranieri accept Medicare?
- Marcus De Ranieri is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcus De Ranieri's NPI active?
- Yes — Marcus De Ranieri's NPI (1891351615) is active in the NPPES registry as of the last update on 2023-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.