Quick answers
- Does Joseph L. Dinglasan Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph L. Dinglasan Jr. 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 Joseph L. Dinglasan Jr. see?
- In 2024, CMS data shows 303 Original Medicare patients and 543 services for Joseph L. Dinglasan Jr.. This counts Original Medicare only and measures volume, not quality.
- What is Joseph L. Dinglasan Jr.'s NPI number?
- 1457515272. 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 Joseph L. Dinglasan Jr., 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 | 303 |
|---|---|
| Services billed to Medicare | 543 |
| Different services or procedures | 19 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)203 services
- Emergency department visit with high level of medical decision making (99285)168 services
- Critical care, first 30-74 minutes (99291)108 services
- Emergency department visit with moderate level of medical decision making (99284)35 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%
- Diabetes52%
- Arthritis52%
- Chronic kidney disease45%
- Ischemic heart disease43%
Hospitals where Joseph L. Dinglasan Jr. works
Medicare's Facility Affiliation Data lists Joseph L. Dinglasan Jr. 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.
- Adventist Health White MemorialLos Angeles, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050103
- Glendale Memorial Hospital & Health CenterGlendale, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050058
- Mountains Community HospitalLake Arrowhead, CA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 051312
- Petaluma Valley HospitalPetaluma, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 050136
Practice locations
Addresses where Joseph L. Dinglasan Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 18300 Roscoe BlvdNorthridge, CA 91325 (818) 885‑5396
- 29101 Hospital RdLake Arrowhead, CA 92352 (925) 482‑8249
Group practices
Medicare enrollment lists Joseph L. Dinglasan Jr. as a member of these groups (CMS data updated October 2, 2026).
- Ridgeline Emergency Physicians Medical Group, Inc.41 clinicians in the group
- Elite Hospitalist Medical Group Inc15 clinicians in the group
- Western Sierra Emergency Physicians Medical Group Inc6 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Northridge
Clinicians with the same Medicare primary specialty in Northridge, CA — not a recommendation.
Other clinicians in Ridgeline Emergency Physicians Medical Group, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Irvine, California College Of Medicine |
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457515272 |
| 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