Quick answers
- Does John F. Abess accept Medicare assignment?
- Medicare's clinician data says John F. Abess may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does John F. Abess see?
- In 2024, CMS data shows 31 Original Medicare patients and 440 services for John F. Abess. This counts Original Medicare only and measures volume, not quality.
- What is John F. Abess's NPI number?
- 1578549523. 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 John F. Abess, 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 | 31 |
|---|---|
| Services billed to Medicare | 440 |
| Different services or procedures | 2 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Psychotherapy with evaluation and management visit, 30 minutes (90833)220 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)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 cholesterol75%
- High blood pressure71%
- Depression71%
- Anxiety71%
- Arthritis48%
- Diabetes35%
Practice locations
Addresses where John F. Abess is enrolled with Medicare (CMS data updated October 2, 2026).
- 46 State St, Suite CCharleston, SC 29401
- 46 State St CCharleston, SC 29401
Specialties
- Psychiatryprimary
Other psychiatrists in Charleston
Clinicians with the same Medicare primary specialty in Charleston, SC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical University Of South Carolina College Of Medicine |
| Graduation year | 1975 (51 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1578549523 |
| 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