John-Khoa DO, D.O.
NPI 1710908223 · Internal Medicine Physician · Downey, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John-Khoa DO, D.O. is a Internal Medicine Physician provider in Downey, CA (NPI 1710908223).
Provider details
- NPI number
- 1710908223
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A8905 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 120 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 652 | 228 |
| Losartan Potassium | 360 | 133 |
| Hydralazine Hcl | 291 | 105 |
| Amlodipine Besylate | 269 | 97 |
| Metformin Hcl | 237 | 81 |
| Gabapentin | 222 | 72 |
| Nifedipinebrand: Nifedipine Er | 217 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$174 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-21
- Last updated
- 2019-08-30
Frequently asked questions
- What is John-Khoa DO's NPI number?
- John-Khoa DO's National Provider Identifier (NPI) is 1710908223, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John-Khoa DO's specialty?
- John-Khoa DO is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John-Khoa DO located?
- John-Khoa DO's practice location on file with NPPES is 10000 Lakewood Blvd, Downey, CA 90240-4020.
- What is John-Khoa DO's phone number?
- The practice phone number listed in the NPPES registry for John-Khoa DO is (562) 862-3684.
- Does John-Khoa DO accept Medicare?
- John-Khoa DO is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John-Khoa DO's NPI active?
- Yes — John-Khoa DO's NPI (1710908223) is active in the NPPES registry as of the last update on 2019-08-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.