Quick answers
- Does Michael L. Richardson Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says Michael L. Richardson 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 Michael L. Richardson Jr. see?
- In 2024, CMS data shows 301 Original Medicare patients and 1,291 services for Michael L. Richardson Jr.. This counts Original Medicare only and measures volume, not quality.
- What is Michael L. Richardson Jr.'s NPI number?
- 1831327899. 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 Michael L. Richardson 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 | 301 |
|---|---|
| Services billed to Medicare | 1,291 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 81 |
Most frequent services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)476 services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)360 services
- Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)170 services
- Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)131 services
- Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)51 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%
- Arthritis61%
- Chronic kidney disease50%
- Depression48%
- Diabetes45%
Practice locations
Addresses where Michael L. Richardson Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 269 Sage Sparrow CirVacaville, CA 95687 (707) 451‑4111
Group practices
Medicare enrollment lists Michael L. Richardson Jr. as a member of this group (CMS data updated October 2, 2026).
- SNF Rehab Only5 clinicians in the group
Specialties
- Family Practiceprimary
- General Surgeryalso
Other family doctors in Vacaville
Clinicians with the same Medicare primary specialty in Vacaville, CA — not a recommendation.
Other clinicians in SNF Rehab Only
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical Branch At Galveston |
| Graduation year | 2009 (17 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831327899 |
| 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