Quick answers
- Does Daniel A. Keenan Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says Daniel A. Keenan Jr. 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 Daniel A. Keenan Jr. see?
- In 2024, CMS data shows 259 Original Medicare patients and 1,271 services for Daniel A. Keenan Jr.. This counts Original Medicare only and measures volume, not quality.
- What is Daniel A. Keenan Jr.'s NPI number?
- 1598714305. 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 Daniel A. Keenan Jr., 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 | 259 |
|---|---|
| Services billed to Medicare | 1,271 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)463 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)300 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)256 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)174 services
- Stool analysis for blood, by fecal hemoglobin determination by immunoassay (82274)20 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 pressure73%
- Ischemic heart disease65%
- Arthritis40%
- Depression33%
- Anxiety33%
Hospitals where Daniel A. Keenan Jr. works
Medicare's Facility Affiliation Data lists Daniel A. Keenan Jr. 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.
- Anmed HealthAnderson, SC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 420027
Practice locations
Addresses where Daniel A. Keenan Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 105 Buford AveAnderson, SC 29621
- 1100 W Franklin StAnderson, SC 29624 (864) 224‑0822
- 2000 E Greenville StAnderson, SC 29621
- 703 N Fant StAnderson, SC 29621 (864) 972‑0414
Group practices
Medicare enrollment lists Daniel A. Keenan Jr. as a member of this group (CMS data updated October 2, 2026).
- Anmed Health344 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Anderson
Clinicians with the same Medicare primary specialty in Anderson, SC — not a recommendation.
Other clinicians in Anmed Health
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wright State University Boonshoft School Of Medicine |
| Graduation year | 1994 (32 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) | 1598714305 |
| 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