Quick answers
- Does Ramarathinam Nagarajan accept Medicare assignment?
- Yes. Medicare's clinician data says Ramarathinam Nagarajan 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 Ramarathinam Nagarajan see?
- In 2024, CMS data shows 119 Original Medicare patients and 1,879 services for Ramarathinam Nagarajan. This counts Original Medicare only and measures volume, not quality.
- What is Ramarathinam Nagarajan's NPI number?
- 1689636482. 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 Ramarathinam Nagarajan, 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 | 119 |
|---|---|
| Services billed to Medicare | 1,879 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Professional service for preparation and provision of 1 or more antigens (95165)795 services
- Professional service for multiple injections of allergen (95117)568 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)30 services
- Test to measure expiratory airflow and volume (94010)23 services
- Evaluation of use of breathing device (94664)22 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 cholesterol70%
- High blood pressure63%
- Asthma53%
- Arthritis47%
- Anxiety29%
- Depression24%
Practice locations
Addresses where Ramarathinam Nagarajan is enrolled with Medicare (CMS data updated October 2, 2026).
- 20520 Keokuk Ave, Suite 180Lakeville, MN 55044 (612) 746‑0502
- 6550 York Ave S, Suite 112Edina, MN 55435 (952) 746‑1854
Group practices
Medicare enrollment lists Ramarathinam Nagarajan as a member of this group (CMS data updated October 2, 2026).
- Minnesota Allergy and Asthma LLC2 clinicians in the group
Specialties
- Allergy/Immunologyprimary
Other allergist and immunologists in Minnesota
Clinicians with the same Medicare primary specialty in Minnesota — not a recommendation.
Other clinicians in Minnesota Allergy and Asthma LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1976 (50 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689636482 |
| 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