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Internal Medicine

Marcil M. Mamita, MD

Works at hospitals in Torrance, CA · California

Summary

Dr. Marcil M. Mamita, MD is an internal medicine doctor at 3655 Lomita Blvd, Suite 418, Torrance, CA 90505. Phone: (310) 530-6900. Accepts Medicare assignment. In 2024, Marcil M. Mamita had 87 Original Medicare patients and 907 services. NPI 1962412718. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 3655 Lomita Blvd, Suite 418, Torrance, CA 90505 · Directions
  • Phone: (310) 530‑6900
  • Medicare: Accepts Medicare assignment
  • Hospital: Torrance Memorial Medical Center
  • Medical school: graduated 1988 (38 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Marcil M. Mamita, 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 Marcil M. Mamita accept Medicare assignment?
Yes. Medicare's clinician data says Marcil M. Mamita 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 Marcil M. Mamita see?
In 2024, CMS data shows 87 Original Medicare patients and 907 services for Marcil M. Mamita. This counts Original Medicare only and measures volume, not quality.
What is Marcil M. Mamita's NPI number?
1962412718. 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 Marcil M. Mamita, 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 patients87
Services billed to Medicare907
Different services or procedures30
Participating Medicare providerYes
Average age of these patients80

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)448 services
  2. Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow (G0181)74 services
  3. Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)65 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)50 services
  5. Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)42 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 blood pressure75%
  • High cholesterol75%
  • Depression45%
  • Chronic kidney disease43%
  • Alzheimer's disease or dementia43%
  • Arthritis37%

Hospitals where Marcil M. Mamita works

Medicare's Facility Affiliation Data lists Marcil M. Mamita 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 Marcil M. Mamita is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Torrance

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

All internal medicine doctors in Torrance →

Clinician information

CredentialMD
Graduation year1988 (38 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1962412718
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