Quick answers
- Does Vimal J. Ponnezhan accept Medicare assignment?
- Yes. Medicare's clinician data says Vimal J. Ponnezhan 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 Vimal J. Ponnezhan see?
- In 2024, CMS data shows 344 Original Medicare patients and 1,168 services for Vimal J. Ponnezhan. This counts Original Medicare only and measures volume, not quality.
- What is Vimal J. Ponnezhan's NPI number?
- 1366653354. 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 Vimal J. Ponnezhan, 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 | 344 |
|---|---|
| Services billed to Medicare | 1,168 |
| Different services or procedures | 30 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Critical care, first 30-74 minutes (99291)433 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)292 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)113 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)94 services
- Critical care, each additional 30 minutes (99292)52 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%
- Diabetes63%
- Arthritis55%
- Heart failure53%
- Chronic kidney disease51%
Hospitals where Vimal J. Ponnezhan works
Medicare's Facility Affiliation Data lists Vimal J. Ponnezhan 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.
- Huntington HospitalPasadena, CA · Acute Care Hospital · Emergency services: listed by Medicare · CCN 050438
- UCI Health-LakewoodLakewood, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050581
- UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348
Practice locations
Addresses where Vimal J. Ponnezhan is enrolled with Medicare (CMS data updated October 2, 2026).
- 3630 E Imperial HwyLynwood, CA 90262 (310) 900‑8900
- 959 E Walnut St, Suite 120Pasadena, CA 91106 (626) 795‑5118
Group practices
Medicare enrollment lists Vimal J. Ponnezhan as a member of these groups (CMS data updated October 2, 2026).
- Prohealth Partners, a Medical Group239 clinicians in the group
- Foothill Pulmonary and Critical Care Consultants Medical Group Inc.8 clinicians in the group
Specialties
Other pulmonologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Prohealth Partners, a Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 (20 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) | 1366653354 |
| 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