Quick answers
- Does Raul Montalvo accept Medicare assignment?
- Yes. Medicare's clinician data says Raul Montalvo 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 Raul Montalvo see?
- In 2024, CMS data shows 152 Original Medicare patients and 425 services for Raul Montalvo. This counts Original Medicare only and measures volume, not quality.
- What is Raul Montalvo's NPI number?
- 1518967488. 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 Raul Montalvo, 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 | 152 |
|---|---|
| Services billed to Medicare | 425 |
| Different services or procedures | 33 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)143 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)64 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)30 services
- Injection of drug or substance under skin or into muscle (96372)29 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)13 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 pressure72%
- High cholesterol70%
- Diabetes38%
- Arthritis36%
- Chronic kidney disease28%
- Ischemic heart disease22%
Practice locations
Addresses where Raul Montalvo is enrolled with Medicare (CMS data updated October 2, 2026).
- 1262 E N St, Suite 100Manteca, CA 95336 (209) 823‑7646
- 1444 Florida Ave, Suite 1and2Modesto, CA 95350 (209) 524‑1264
Group practices
Medicare enrollment lists Raul Montalvo as a member of this group (CMS data updated October 2, 2026).
- Shane Speirs MD PC13 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Manteca
Clinicians with the same Medicare primary specialty in Manteca, CA — not a recommendation.
Other clinicians in Shane Speirs MD PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518967488 |
| 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