Quick answers
- Does Nelson M. Dela Rosa accept Medicare assignment?
- Yes. Medicare's clinician data says Nelson M. Dela Rosa 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 Nelson M. Dela Rosa see?
- In 2024, CMS data shows 256 Original Medicare patients and 942 services for Nelson M. Dela Rosa. This counts Original Medicare only and measures volume, not quality.
- What is Nelson M. Dela Rosa's NPI number?
- 1669530564. 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 Nelson M. Dela Rosa, 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 | 256 |
|---|---|
| Services billed to Medicare | 942 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)462 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)178 services
- Administration of influenza virus vaccine (G0008)69 services
- Influenza vaccine split virus, preservative free (90662)66 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)27 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%
- Arthritis40%
- Chronic kidney disease30%
- Diabetes29%
- Ischemic heart disease23%
Hospitals where Nelson M. Dela Rosa works
Medicare's Facility Affiliation Data lists Nelson M. Dela Rosa at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Mercy Hospital AuroraAurora, MO · Critical Access Hospital · Emergency services: listed by Medicare · CCN 261316
- Mercy Hospital SpringfieldSpringfield, MO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 260065
Practice locations
Addresses where Nelson M. Dela Rosa is enrolled with Medicare (CMS data updated October 2, 2026).
- 1965 S Fremont Ave, 350 Mc Internal Medicine S FremontSpringfield, MO 65804 (417) 820‑3500
- 940 W Mount Vernon St, 100 Mc Laboratory Services NixaNixa, MO 65714 (417) 724‑5220
Group practices
Medicare enrollment lists Nelson M. Dela Rosa as a member of this group (CMS data updated October 2, 2026).
- Mercy Clinic Springfield Communities1,120 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Springfield
Clinicians with the same Medicare primary specialty in Springfield, MO — not a recommendation.
Other clinicians in Mercy Clinic Springfield Communities
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1986 (40 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) | 1669530564 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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