Steven J. Porbunderwala, MD

Medicare activity in 2024

Official CMS public-use data for Steven J. Porbunderwala, 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)44 services
2. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)38 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)22 services
4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)19 services
5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)14 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 cholesterol73%
• High blood pressure66%
• Arthritis41%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)32%
• Ischemic heart disease28%
• Anxiety26%

Hospitals where Steven J. Porbunderwala works

Medicare's Facility Affiliation Data lists Steven J. Porbunderwala 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.

• Catholic Medical CenterManchester, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300034

Practice locations

Addresses where Steven J. Porbunderwala is enrolled with Medicare (CMS data updated October 2, 2026).

• 87 McGregor St, Suite 3100Manchester, NH 03102 (603) 627‑1887

Group practices

Medicare enrollment lists Steven J. Porbunderwala as a member of this group (CMS data updated October 2, 2026).

• Appledore Medical Group Inc196 clinicians in the group

Specialties

• Colorectal Surgery (Proctology)primary
• General Surgeryalso

Find other Colorectal Surgery (Proctology) doctors in New Hampshire →

Other colorectal surgeons in New Hampshire

Clinicians with the same Medicare primary specialty in New Hampshire — not a recommendation.

• Lauren R. Wilson, MD
• John Flannery, MD
• Matthew Z. Wilson, MD
• Anne C. Granfield, MD
• Michael Morton, MD

All colorectal surgeons in New Hampshire →

Other clinicians in Appledore Medical Group Inc

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

• Crystal G. Bonias
• Nicholas K. Piotrowski, MD
• Benjamin Westbrook, MD
• Hatem T. Shoukeir, MD
• Patrick A. Mahon, MD
• Joellen Speaker, PA

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