Quick answers
- Does Maresa K. Haynes accept Medicare assignment?
- Yes. Medicare's clinician data says Maresa K. Haynes 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 Maresa K. Haynes see?
- In 2024, CMS data shows 73 Original Medicare patients and 1,825 services for Maresa K. Haynes. This counts Original Medicare only and measures volume, not quality.
- What is Maresa K. Haynes's NPI number?
- 1447862909. 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 Maresa K. Haynes, 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 | 73 |
|---|---|
| Services billed to Medicare | 1,825 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)560 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)426 services
- Advance care planning, first 30 minutes (99497)331 services
- Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)224 services
- Comprehensive assessment of and care planning for patients requiring chronic care management services (list separately in addition to primary monthly care management service) (G0506)33 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%
- Depression67%
- Arthritis66%
- Diabetes64%
- Anxiety63%
Practice locations
Addresses where Maresa K. Haynes is enrolled with Medicare (CMS data updated October 2, 2026).
- 101 Orchard Park DrGreenville, SC 29615 (864) 729‑6606
- 1053 Ctr StWest Columbia, SC 29169 (800) 491‑0909
- 3516 Hwy 153Greenville, SC 29611 (864) 729‑6626
Group practices
Medicare enrollment lists Maresa K. Haynes as a member of these groups (CMS data updated October 2, 2026).
- SC House Calls Inc432 clinicians in the group
- Centerwell Senior Primary Care SC PC45 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Greenville
Clinicians with the same Medicare primary specialty in Greenville, SC — not a recommendation.
Other clinicians in SC House Calls Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1447862909 |
| 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
- 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