Quick answers
- Does Isaias D. Paja Jr. accept Medicare assignment?
- Medicare's clinician data says Isaias D. Paja Jr. may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Isaias D. Paja Jr. see?
- In 2024, CMS data shows 39 Original Medicare patients and 166 services for Isaias D. Paja Jr.. This counts Original Medicare only and measures volume, not quality.
- What is Isaias D. Paja Jr.'s NPI number?
- 1518997709. 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 Isaias D. Paja 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 | 39 |
|---|---|
| Services billed to Medicare | 166 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)90 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)35 services
- Annual depression screening, 5 to 15 minutes (G0444)15 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)14 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%
- Anxiety59%
- Diabetes56%
- Depression49%
- Chronic kidney disease33%
Practice locations
Addresses where Isaias D. Paja Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 1800 Wilshire BlvdLos Angeles, CA 90057 (213) 484‑9934
- 780 Atlantic AveLong Beach, CA 90813 (562) 580‑0955
Specialties
- Family Practiceprimary
Other family doctors in Los Angeles
Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Irvine, California College Of Medicine |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1518997709 |
| 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