Quick answers
- Does Andrew P. Keegan accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew P. Keegan 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 P. Keegan see?
- In 2024, CMS data shows 282 Original Medicare patients and 417 services for Andrew P. Keegan. This counts Original Medicare only and measures volume, not quality.
- What is Andrew P. Keegan's NPI number?
- 1780747527. 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 P. Keegan, 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 | 282 |
|---|---|
| Services billed to Medicare | 417 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)157 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)65 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)52 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)50 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)46 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 cholesterol75%
- High blood pressure74%
- Arthritis57%
- Anxiety32%
- Depression31%
- Ischemic heart disease29%
Hospitals where Andrew P. Keegan works
Medicare's Facility Affiliation Data lists Andrew P. Keegan 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.
- Beaufort County Memorial HospitalBeaufort, SC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 420067
- MUSC Medical CenterCharleston, SC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 420004
- Tidelands Georgetown Memorial HospitalGeorgetown, SC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 420020
- Tidelands Waccamaw Community HospitalMurrells Inlet, SC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 420098
Practice locations
Addresses where Andrew P. Keegan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1600 Midtown AveMount Pleasant, SC 29464 (843) 792‑1414
- 167 Ashley AveCharleston, SC 29425 (843) 792‑1414
- 171 Ashley AveCharleston, SC 29425 (843) 792‑1414
- 2060 Sam Rittenberg BlvdCharleston, SC 29407 (843) 792‑1414
Group practices
Medicare enrollment lists Andrew P. Keegan as a member of this group (CMS data updated October 2, 2026).
- University Medical Associates of the Medical University of South Carol1,668 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Mount Pleasant
Clinicians with the same Medicare primary specialty in Mount Pleasant, SC — not a recommendation.
Other clinicians in University Medical Associates of the Medical University of South Carol
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tulane University School Of Medicine |
| Graduation year | 1999 (27 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) | 1780747527 |
| 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