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Obstetrics/Gynecology

Catalin G. Marinescu, MD

Works at hospitals in Newport Beach, CA · California

Summary

Dr. Catalin G. Marinescu, MD is an OB-GYN at 415 Old Newport Blvd, Suite 100, Newport Beach, CA 92663. Phone: (312) 890-3864. Accepts Medicare assignment. In 2024, Catalin G. Marinescu had 26 Original Medicare patients and 51 services. NPI 1669761664. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 415 Old Newport Blvd, Suite 100, Newport Beach, CA 92663 · Directions
  • Phone: (312) 890‑3864
  • Medicare: Accepts Medicare assignment
  • Hospital: Hoag Memorial Hospital Presbyterian
  • Medical school: graduated 2001 (25 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Catalin G. Marinescu, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Catalin G. Marinescu accept Medicare assignment?
Yes. Medicare's clinician data says Catalin G. Marinescu accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Catalin G. Marinescu see?
In 2024, CMS data shows 26 Original Medicare patients and 51 services for Catalin G. Marinescu. This counts Original Medicare only and measures volume, not quality.
What is Catalin G. Marinescu's NPI number?
1669761664. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Catalin G. Marinescu, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients26
Services billed to Medicare51
Different services or procedures13
Participating Medicare providerYes
Average age of these patients67

Most frequent services

  1. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)12 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol65%
  • Arthritis54%
  • High blood pressure50%

Hospitals where Catalin G. Marinescu works

Medicare's Facility Affiliation Data lists Catalin G. Marinescu at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Catalin G. Marinescu is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in Newport Beach

Clinicians with the same Medicare primary specialty in Newport Beach, CA — not a recommendation.

All OB-GYNs in Newport Beach →

Clinician information

CredentialMD
Graduation year2001 (25 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1669761664
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians