Mary M. Allen, MD

Medicare activity in 2024

Official CMS public-use data for Mary M. Allen, 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 including interpretation and report (88313)237 services
2. Pathology examination of tissue using a microscope, intermediate complexity (88305)227 services
3. Special stained specimen slides to examine tissue, each additional procedure (88341)212 services
4. Special stained specimen slides to examine tissue, initial procedure (88342)87 services
5. Flow cytometry technique for dna or cell analysis, 16 or more markers (88189)66 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%
• Arthritis48%
• Diabetes36%
• Ischemic heart disease36%
• Chronic kidney disease34%

Hospitals where Mary M. Allen works

Medicare's Facility Affiliation Data lists Mary M. Allen 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.

• Ascension Saint Thomas HospitalNashville, TN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 440082
• Saint Thomas Highlands HospitalSparta, TN · Acute Care Hospital · Emergency services: listed by Medicare · CCN 440192
• Saint Thomas Hospital for Spinal SurgeryNashville, TN · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 440218
• Saint Thomas Rutherford HospitalMurfreesboro, TN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 440053

Practice locations

Addresses where Mary M. Allen is enrolled with Medicare (CMS data updated October 2, 2026).

• 2000 Church StNashville, TN 37236 (615) 284‑5229

Group practices

Medicare enrollment lists Mary M. Allen as a member of this group (CMS data updated October 2, 2026).

• Acla PC13 clinicians in the group

Specialties

• Pathologyprimary
• Hematologyalso

Find other Pathology doctors in Tennessee →

Other pathologists in Nashville

Clinicians with the same Medicare primary specialty in Nashville, TN — not a recommendation.

• Julia Berry, MD
• Jiancong Liang
• Joshua Onuiri, MD
• Alexander N. Perez, MD
• Sarah Fitzlaff
• Heather Baldwin
• Jennifer Gordetsky, MD
• Benjamin C. Calhoun, MD

All pathologists in Nashville →

Other clinicians in Acla PC

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

• Adam L. Jimenez, MD
• Katherine S. Hamilton, MD
• Evan A. Alston, MD
• Peter F. Jelsma, MD
• Jacob F. Busler, MD
• Adriana L. Gonzalez-Gerdeman, 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