Christopher R. Mascarenhas, MD

Medicare activity in 2024

Official CMS public-use data for Christopher R. Mascarenhas, 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. Diagnostic exam of anus using an endoscope (46600)95 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)49 services
3. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)47 services
4. Removal of external hemorrhoids by rubber banding (46221)44 services
5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)29 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 pressure70%
• High cholesterol69%
• Arthritis45%
• Ischemic heart disease29%
• Depression29%
• Anxiety29%

Hospitals where Christopher R. Mascarenhas works

Medicare's Facility Affiliation Data lists Christopher R. Mascarenhas 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
• Tristar Centennial Medical CenterNashville, TN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 440161

Practice locations

Addresses where Christopher R. Mascarenhas is enrolled with Medicare (CMS data updated October 2, 2026).

• 3443 Dickerson Pike, Suite 400Nashville, TN 37207 (615) 612‑2146

Group practices

Medicare enrollment lists Christopher R. Mascarenhas as a member of this group (CMS data updated October 2, 2026).

• Advanced Diagnostic Imaging PC523 clinicians in the group

Specialties

• Colorectal Surgery (Proctology)primary

Find other Colorectal Surgery (Proctology) doctors in Tennessee →

Other colorectal surgeons in Nashville

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

• Shannon L. McChesney
• Jason D. Aston, MD
• Phillip J. Williams
• William J. Harb, MD
• Mark L. Manwaring, MD
• Stephen K. Hollister, MD
• Aimal Khan
• Sree K. Suryadevara, MD

All colorectal surgeons in Nashville →

Other clinicians in Advanced Diagnostic Imaging PC

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

• Jeffrey L. Mitchell Ii, DPM
• Richard D. Kennedy, MD
• Kristen D'Onofrio, AU
• Jennifer L. Ruff
• Jennalouise Hollnagel, DPM
• Prakashchandra B. Patel, 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