Quick answers
- Does Hae Young A. Song accept Medicare assignment?
- Yes. Medicare's clinician data says Hae Young A. Song 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 Hae Young A. Song see?
- In 2024, CMS data shows 84 Original Medicare patients and 1,492 services for Hae Young A. Song. This counts Original Medicare only and measures volume, not quality.
- What is Hae Young A. Song's NPI number?
- 1831181569. 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 Hae Young A. Song, 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 | 84 |
|---|---|
| Services billed to Medicare | 1,492 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Test for allergy using allergenic extract (95004)972 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)82 services
- Test to measure expiratory airflow and volume (94010)62 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)30 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)29 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 pressure63%
- Arthritis55%
- Asthma38%
- Osteoporosis25%
- Anxiety23%
Practice locations
Addresses where Hae Young A. Song is enrolled with Medicare (CMS data updated October 2, 2026).
- 16960 Bastanchury Rd, Suite HYorba Linda, CA 92886 (714) 777‑8845
- 18340 Yorba Linda Blvd, Suite 101Yorba Linda, CA 92886
- 268 W Hospitality Ln, Suite 300San Bernardino, CA 92408
Specialties
- Allergy/Immunologyprimary
- Internal Medicinealso
Other allergist and immunologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831181569 |
| 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