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Internal Medicine

Ricardo H. Alvarez, MD

Works at hospitals in Katy, TX · Houston, TX · Texas

Summary

Dr. Ricardo H. Alvarez, MD is an internal medicine doctor at 18970 N Memorial Dr, Humble, TX 77338. Phone: (346) 362-1670. Accepts Medicare assignment. In 2024, Ricardo H. Alvarez had 56 Original Medicare patients and 10,837 services. NPI 1649441601. 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 Ricardo H. Alvarez, 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 Ricardo H. Alvarez accept Medicare assignment?
Yes. Medicare's clinician data says Ricardo H. Alvarez 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 Ricardo H. Alvarez see?
In 2024, CMS data shows 56 Original Medicare patients and 10,837 services for Ricardo H. Alvarez. This counts Original Medicare only and measures volume, not quality.
What is Ricardo H. Alvarez's NPI number?
1649441601. 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 Ricardo H. Alvarez, 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 patients56
Services billed to Medicare10,837
Different services or procedures47
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)90 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)57 services
  3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)52 services
  4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)35 services
  5. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)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 blood pressure75%
  • High cholesterol71%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)61%
  • Chronic kidney disease38%
  • Osteoporosis38%
  • Diabetes36%

Hospitals where Ricardo H. Alvarez works

Medicare's Facility Affiliation Data lists Ricardo H. Alvarez 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 Ricardo H. Alvarez is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ricardo H. Alvarez as a member of these groups (CMS data updated October 2, 2026).

  • American Oncology Partners PA391 clinicians in the group
  • Oncology Consultants, P. A.34 clinicians in the group

Specialties

Find other Internal Medicine doctors in Texas →

Other internal medicine doctors in Humble

Clinicians with the same Medicare primary specialty in Humble, TX — not a recommendation.

All internal medicine doctors in Humble →

Other clinicians in American Oncology Partners PA

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

Clinician information

CredentialMD
Graduation year1990 (36 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1649441601
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