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Endocrinology

Juan D. Palacios Merchan, MD

Works at hospitals in Edinburg, TX · Mission, TX · Rio Grande City, TX · Texas

Summary

Dr. Juan D. Palacios Merchan, MD is an endocrinologist at 2121 E Griffin Pkwy, Suite 17, Mission, TX 78572. Phone: (956) 362-5650. Accepts Medicare assignment. In 2024, Juan D. Palacios Merchan had 220 Original Medicare patients and 418 services. NPI 1811284078. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Juan D. Palacios Merchan, 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 Juan D. Palacios Merchan accept Medicare assignment?
Yes. Medicare's clinician data says Juan D. Palacios Merchan 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 Juan D. Palacios Merchan see?
In 2024, CMS data shows 220 Original Medicare patients and 418 services for Juan D. Palacios Merchan. This counts Original Medicare only and measures volume, not quality.
What is Juan D. Palacios Merchan's NPI number?
1811284078. 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 Juan D. Palacios Merchan, 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 patients220
Services billed to Medicare418
Different services or procedures8
Participating Medicare providerYes
Average age of these patients69

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)351 services
  2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)32 services
  3. Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (95251)14 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%
  • Diabetes75%
  • Chronic kidney disease51%
  • Arthritis47%
  • Ischemic heart disease39%

Hospitals where Juan D. Palacios Merchan works

Medicare's Facility Affiliation Data lists Juan D. Palacios Merchan 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 Juan D. Palacios Merchan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Juan D. Palacios Merchan as a member of this group (CMS data updated October 2, 2026).

  • Renaissance Endocrinology10 clinicians in the group

Specialties

Find other Endocrinology doctors in Texas →

Other endocrinologists in Texas

Clinicians with the same Medicare primary specialty in Texas — not a recommendation.

All endocrinologists in Texas →

Other clinicians in Renaissance Endocrinology

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

Clinician information

CredentialMD
Graduation year2008 (18 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811284078
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