Quick answers
- Does Madhu G. Subramanian accept Medicare assignment?
- Yes. Medicare's clinician data says Madhu G. Subramanian 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 Madhu G. Subramanian see?
- In 2024, CMS data shows 276 Original Medicare patients and 653 services for Madhu G. Subramanian. This counts Original Medicare only and measures volume, not quality.
- What is Madhu G. Subramanian's NPI number?
- 1851680466. 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 Madhu G. Subramanian, 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 patients | 276 |
|---|---|
| Services billed to Medicare | 653 |
| Different services or procedures | 56 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)164 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)96 services
- Critical care, first 30-74 minutes (99291)90 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)60 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)48 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%
- Arthritis56%
- Diabetes50%
- Ischemic heart disease49%
- Depression47%
Hospitals where Madhu G. Subramanian works
Medicare's Facility Affiliation Data lists Madhu G. Subramanian 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.
- Duke Regional HospitalDurham, NC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 340155
- Duke University HospitalDurham, NC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 340030
- Maria Parham Medical CenterHenderson, NC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 340132
- Person Memorial HospitalRoxboro, NC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 340159
Practice locations
Addresses where Madhu G. Subramanian is enrolled with Medicare (CMS data updated October 2, 2026).
- 40 Duke Medicine CirDurham, NC 27710 (919) 684‑8111
Group practices
Medicare enrollment lists Madhu G. Subramanian as a member of this group (CMS data updated October 2, 2026).
- Duke Health Integrated Practice, Inc3,185 clinicians in the group
Specialties
- Critical Care (Intensivists)primary
Find other Critical Care (Intensivists) doctors in North Carolina →
Other critical care doctors in Durham
Clinicians with the same Medicare primary specialty in Durham, NC — not a recommendation.
Other clinicians in Duke Health Integrated Practice, Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Emory University School Of Medicine |
| Graduation year | 2011 (15 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851680466 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians