Maria Martinez-Lage Alvarez, MD

Medicare activity in 2024

Official CMS public-use data for Maria Martinez-Lage 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.

Most frequent services

1. Special stained specimen slides to examine tissue, each additional procedure (88341)151 services
2. Pathology examination of tissue using a microscope, moderately high complexity (88307)88 services
3. Pathology examination of specimen during surgery, first tissue block (88331)62 services
4. Special stained specimen slides to examine tissue, initial procedure (88342)51 services
5. Pathology examination of tissue using a microscope, intermediate complexity (88305)31 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%
• Anxiety51%
• Arthritis46%
• Depression41%
• Stroke or mini-stroke38%

Hospitals where Maria Martinez-Lage Alvarez works

Medicare's Facility Affiliation Data lists Maria Martinez-Lage 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.

• Brigham and Women's HospitalBoston, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220110
• Massachusetts General HospitalBoston, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220071

Practice locations

Addresses where Maria Martinez-Lage Alvarez is enrolled with Medicare (CMS data updated October 2, 2026).

• 55 Fruit StBoston, MA 02114 (617) 724‑0287
• 75 Francis StBoston, MA 02115 (617) 732‑5500

Group practices

Medicare enrollment lists Maria Martinez-Lage Alvarez as a member of these groups (CMS data updated October 2, 2026).

• Massachusetts General Physicians Organization Inc3,558 clinicians in the group
• Brigham and Womens Physicians Organization Inc2,994 clinicians in the group

Specialties

• Pathologyprimary

Find other Pathology doctors in Massachusetts →

Other pathologists in Boston

Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.

• Li Liu, MD
• Yin P. Hung
• Min Zhang, MD
• Charlotte Wang
• Natalie A. Ciomek, MD
• Monika M. Vyas, MD
• Sean Stowell
• Vindhya Bellamkonda, MD

All pathologists in Boston →

Other clinicians in Massachusetts General Physicians Organization Inc

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

• Florence Keane, MD
• Maggie Syme
• Laura J. Hu, MD
• Bharti Khurana, MD
• Alyssa R. Letourneau, MD
• Bassem Ayyash, MD

Clinician information

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