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Internal Medicine

Maristela Manuel-Carreon, MD

Works at hospitals in Merced, CA · California

Summary

Dr. Maristela Manuel-Carreon, MD is an internal medicine doctor at 410 E Yosemite Ave, Suite A, Merced, CA 95340. Phone: (209) 384-9108. May accept Medicare assignment. In 2024, Maristela Manuel-Carreon had 181 Original Medicare patients and 882 services. NPI 1376693952. 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: 410 E Yosemite Ave, Suite A, Merced, CA 95340 · Directions
  • Phone: (209) 384‑9108
  • Medicare: May accept Medicare assignment
  • Hospital: Mercy Medical Center
  • Group practice: Provident Primary Care Inc
  • Medical school: graduated 1989 (37 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Maristela Manuel-Carreon, 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 Maristela Manuel-Carreon accept Medicare assignment?
Medicare's clinician data says Maristela Manuel-Carreon may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Maristela Manuel-Carreon see?
In 2024, CMS data shows 181 Original Medicare patients and 882 services for Maristela Manuel-Carreon. This counts Original Medicare only and measures volume, not quality.
What is Maristela Manuel-Carreon's NPI number?
1376693952. 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 Maristela Manuel-Carreon, 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 patients181
Services billed to Medicare882
Different services or procedures32
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)244 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)148 services
  3. Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (99211)62 services
  4. Annual depression screening, 5 to 15 minutes (G0444)48 services
  5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)46 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%
  • Arthritis40%
  • Diabetes38%
  • Ischemic heart disease31%
  • Chronic kidney disease31%

Hospitals where Maristela Manuel-Carreon works

Medicare's Facility Affiliation Data lists Maristela Manuel-Carreon 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.

  • Mercy Medical CenterMerced, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050444

Practice locations

Addresses where Maristela Manuel-Carreon is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Maristela Manuel-Carreon as a member of this group (CMS data updated October 2, 2026).

  • Provident Primary Care Inc10 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Merced

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

All internal medicine doctors in Merced →

Other clinicians in Provident Primary Care Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1989 (37 years since medical school)
Gender (as listed)Female
Medicare assignmentMay accept for some services
TelehealthOffers telehealth services
NPI (National Provider Identifier)1376693952
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