Aaron Cho, D.O.
NPI 1164841482 · Emergency Medicine Physician · Garden Grove, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aaron Cho, D.O. is a Emergency Medicine Physician provider in Garden Grove, CA (NPI 1164841482).
Provider details
- NPI number
- 1164841482
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 3338 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
30 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 16 | $178 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 14 | $125 |
Typical Medicare-allowed amounts for these services range $125–$178 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ibuprofen | 45 | 45 |
| Azithromycin | 34 | 33 |
| Meloxicam | 32 | 31 |
| Cefuroxime Axetilbrand: Cefuroxime | 26 | 26 |
| Prednisone | 23 | 22 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 21 | 21 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 21 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-04-15
- Last updated
- 2021-11-03
- Certified
- 2021-11-03
Frequently asked questions
- What is Aaron Cho's NPI number?
- Aaron Cho's National Provider Identifier (NPI) is 1164841482, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aaron Cho's specialty?
- Aaron Cho is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Aaron Cho located?
- Aaron Cho's practice location on file with NPPES is 9902 Royal Palm Blvd, Garden Grove, CA 92841-1755.
- What is Aaron Cho's phone number?
- The practice phone number listed in the NPPES registry for Aaron Cho is (714) 722-7983.
- Does Aaron Cho accept Medicare?
- Aaron Cho is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aaron Cho's NPI active?
- Yes — Aaron Cho's NPI (1164841482) is active in the NPPES registry as of the last update on 2021-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.