Quick answers
- Does Karmin P. Nissan accept Medicare assignment?
- Yes. Medicare's clinician data says Karmin P. Nissan 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 Karmin P. Nissan see?
- In 2024, CMS data shows 416 Original Medicare patients and 3,592 services for Karmin P. Nissan. This counts Original Medicare only and measures volume, not quality.
- What is Karmin P. Nissan's NPI number?
- 1497044465. 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 Karmin P. Nissan, 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 | 416 |
|---|---|
| Services billed to Medicare | 3,592 |
| Different services or procedures | 63 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)525 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)504 services
- Telephone medical discussion with physician, 21-30 minutes (99443)444 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)235 services
- Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)141 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%
- Arthritis75%
- Ischemic heart disease38%
- Diabetes33%
- Depression29%
Hospitals where Karmin P. Nissan works
Medicare's Facility Affiliation Data lists Karmin P. Nissan 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.
- Loma Linda University Medical Center-MurrietaMurrieta, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050770
- Southwest Healthcare Rancho Springs HospitalMurrieta, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050701
- Temecula Valley HospitalTemecula, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050775
Practice locations
Addresses where Karmin P. Nissan is enrolled with Medicare (CMS data updated October 2, 2026).
- 25186 Hancock Ave, Suite 200Murrieta, CA 92562 (773) 715‑1360
- 25500 Medical Ctr DrMurrieta, CA 92562 (951) 696‑6000
- 31700 Temecula PkwyTemecula, CA 92592 (951) 331‑2200
- 36485 Inland Valley DrWildomar, CA 92595 (951) 677‑1111
Group practices
Medicare enrollment lists Karmin P. Nissan as a member of these groups (CMS data updated October 2, 2026).
- Temecula Valley Anesthesia Partners Inc34 clinicians in the group
- Rancho Springs Anesthesia Partners Inc32 clinicians in the group
- Inland Valley Anesthesia Partners Inc31 clinicians in the group
Specialties
- Pain Managementprimary
- Anesthesiologyalso
Other pain management doctors in Murrieta
Clinicians with the same Medicare primary specialty in Murrieta, CA — not a recommendation.
Other clinicians in Temecula Valley Anesthesia Partners Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Chicago College Of Medicine And Surgery |
| Graduation year | 2011 (15 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) | 1497044465 |
| 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