Quick answers
- Does Charles R. May Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says Charles R. May 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 Charles R. May Jr. see?
- In 2024, CMS data shows 102 Original Medicare patients and 435 services for Charles R. May Jr.. This counts Original Medicare only and measures volume, not quality.
- What is Charles R. May Jr.'s NPI number?
- 1245268531. 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 Charles R. May 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 | 102 |
|---|---|
| Services billed to Medicare | 435 |
| Different services or procedures | 5 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)289 services
- Psychotherapy with evaluation and management visit, 30 minutes (90833)120 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%
- Depression73%
- High cholesterol72%
- Anxiety62%
- Arthritis49%
- Diabetes32%
Practice locations
Addresses where Charles R. May Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 1111 N Northshore Dr, Suite S490Knoxville, TN 37919 (865) 584‑0171
Group practices
Medicare enrollment lists Charles R. May Jr. as a member of this group (CMS data updated October 2, 2026).
- The Northshore Group Inc15 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Knoxville
Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.
Other clinicians in The Northshore Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 (41 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) | 1245268531 |
| 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