Quick answers
- Does Andrew S. O Connor accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew S. O Connor 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 Andrew S. O Connor see?
- In 2024, CMS data shows 466 Original Medicare patients and 3,638 services for Andrew S. O Connor. This counts Original Medicare only and measures volume, not quality.
- What is Andrew S. O Connor's NPI number?
- 1679581326. 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 Andrew S. O Connor, 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 | 466 |
|---|---|
| Services billed to Medicare | 3,638 |
| Different services or procedures | 58 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)429 services
- Kidney function blood test panel (80069)342 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)336 services
- Parathormone (parathyroid hormone) level (83970)273 services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)220 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%
- Chronic kidney disease75%
- Diabetes62%
- Ischemic heart disease45%
- Heart failure44%
Hospitals where Andrew S. O Connor works
Medicare's Facility Affiliation Data lists Andrew S. O Connor 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.
- Atrium Health PinevilleCharlotte, NC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 340098
- Atrium Health UnionMonroe, NC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 340130
- Carolinas Medical Center/Behavioral HealthCharlotte, NC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 340113
Practice locations
Addresses where Andrew S. O Connor is enrolled with Medicare (CMS data updated October 2, 2026).
- 1338 E Sunset DrMonroe, NC 28112 (704) 348‑2992
- 1640 Campus Park Dr CMonroe, NC 28112 (704) 226‑0366
- 3158 Freedom Dr, Suite 3102Charlotte, NC 28208
Group practices
Medicare enrollment lists Andrew S. O Connor as a member of this group (CMS data updated October 2, 2026).
- Metrolina Nephrology Associates PA86 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Monroe
Clinicians with the same Medicare primary specialty in Monroe, NC — not a recommendation.
Other clinicians in Metrolina Nephrology Associates PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | At Still University Of Health Sciences, College Of Osteo Med, Kirksville |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1679581326 |
| 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