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Infectious Disease

Maria Romero Alvarez, MD

Works at hospitals in Waterloo, IA · Des Moines, IA · Iowa

Summary

Dr. Maria Romero Alvarez, MD is an infectious disease doctor at 1221 Pleasant St, Suite 300, Des Moines, IA 50309. Phone: (515) 241-4200. Accepts Medicare assignment. In 2024, Maria Romero Alvarez had 189 Original Medicare patients and 568 services. NPI 1952784662. 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 Maria Romero 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 Maria Romero Alvarez accept Medicare assignment?
Yes. Medicare's clinician data says Maria Romero 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 Maria Romero Alvarez see?
In 2024, CMS data shows 189 Original Medicare patients and 568 services for Maria Romero Alvarez. This counts Original Medicare only and measures volume, not quality.
What is Maria Romero Alvarez's NPI number?
1952784662. 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 Maria Romero 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 patients189
Services billed to Medicare568
Different services or procedures14
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)144 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)113 services
  3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)91 services
  4. Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (G0316)37 services
  5. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)35 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%
  • Arthritis60%
  • Chronic kidney disease54%
  • Diabetes51%
  • Depression50%

Hospitals where Maria Romero Alvarez works

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

Group practices

Medicare enrollment lists Maria Romero Alvarez as a member of this group (CMS data updated October 2, 2026).

  • Central Iowa Hospital Corporation239 clinicians in the group

Specialties

Find other Infectious Disease doctors in Iowa →

Other infectious disease doctors in Des Moines

Clinicians with the same Medicare primary specialty in Des Moines, IA — not a recommendation.

All infectious disease doctors in Des Moines →

Other clinicians in Central Iowa Hospital Corporation

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

Clinician information

CredentialMD
Graduation year2010 (16 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1952784662
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