Quick answers
- Does Kevin M. Wethey accept Medicare assignment?
- Yes. Medicare's clinician data says Kevin M. Wethey 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 Kevin M. Wethey see?
- In 2024, CMS data shows 115 Original Medicare patients and 858 services for Kevin M. Wethey. This counts Original Medicare only and measures volume, not quality.
- What is Kevin M. Wethey's NPI number?
- 1306378559. 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 Kevin M. Wethey, 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 | 115 |
|---|---|
| Services billed to Medicare | 858 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 59 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)666 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)70 services
- Hospital discharge day management, 30 minutes or less (99238)60 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)38 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).
- Depression75%
- High blood pressure72%
- Anxiety71%
- High cholesterol59%
- Arthritis39%
- Diabetes35%
Practice locations
Addresses where Kevin M. Wethey is enrolled with Medicare (CMS data updated October 2, 2026).
- 750 N Diamond Bar Blvd, Suite 212Diamond Bar, CA 91765 (909) 460‑8733
Group practices
Medicare enrollment lists Kevin M. Wethey as a member of this group (CMS data updated October 2, 2026).
- Kevin Wethey MD a Professional Corporation5 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Diamond Bar
Clinicians with the same Medicare primary specialty in Diamond Bar, CA — not a recommendation.
Other clinicians in Kevin Wethey MD a Professional Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2017 (9 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) | 1306378559 |
| 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