Quick answers
- Does Justin N. Karlin accept Medicare assignment?
- Yes. Medicare's clinician data says Justin N. Karlin 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 Justin N. Karlin see?
- In 2024, CMS data shows 522 Original Medicare patients and 6,197 services for Justin N. Karlin. This counts Original Medicare only and measures volume, not quality.
- What is Justin N. Karlin's NPI number?
- 1427476464. 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 Justin N. Karlin, 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 | 522 |
|---|---|
| Services billed to Medicare | 6,197 |
| Different services or procedures | 69 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Injection, incobotulinumtoxin a, 1 unit (J0588)2,900 services
- Injection, onabotulinumtoxina, 1 unit (J0585)2,050 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)442 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)319 services
- Injection of chemical for paralysis of nerve muscles on side of face (64612)75 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 cholesterol75%
- High blood pressure73%
- Arthritis55%
- Diabetes30%
- Osteoporosis27%
- Ischemic heart disease24%
Hospitals where Justin N. Karlin works
Medicare's Facility Affiliation Data lists Justin N. Karlin 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.
- Ronald Reagan UCLA Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050262
Practice locations
Addresses where Justin N. Karlin is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 12; the Medicare profile lists all.
- 13652 Cantara StPanorama City, CA 91402 (818) 375‑2000
- 1500 Duarte RdDuarte, CA 91010 (626) 256‑4673
- 1515 N Vermont AveLos Angeles, CA 90027 (323) 783‑4011
- 18111 Brookhurst St, Suite 6400Fountain Valley, CA 92708 (714) 963‑1444
- 200 Medical PlazaLos Angeles, CA 90095
Group practices
Medicare enrollment lists Justin N. Karlin as a member of these groups (CMS data updated October 2, 2026).
- Southern California Permanente Medical Group11,293 clinicians in the group
- City of Hope Medical Foundation982 clinicians in the group
- Jules Stein Eye Institute Medical Group119 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Panorama City
Clinicians with the same Medicare primary specialty in Panorama City, CA — not a recommendation.
Other clinicians in Southern California Permanente Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2014 (12 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) | 1427476464 |
| 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