Jonathan Cheng
NPI 1669035283 · Emergency Medicine Physician · Vallejo, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Cheng is a Emergency Medicine Physician provider in Vallejo, CA (NPI 1669035283).
Provider details
- NPI number
- 1669035283
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A178012 (CA)
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
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
66 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 | 66 | $178 |
Typical Medicare-allowed amounts for these services range $178–$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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefadroxil | 40 | 40 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 29 | 29 |
| Ondansetronbrand: Ondansetron Odt | 27 | 27 |
| Doxycycline Monohydrate | 22 | 22 |
| Prednisone | 20 | 20 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 19 | 19 |
| Ciprofloxacin Hcl |
Practice location
Mailing address
Additional practice locations (1)
- 1 Quality DrVacaville, CA 95688-9494Phone: (707) 624-4000
Registry dates
- Enumerated
- 2019-04-18
- Last updated
- 2024-10-31
- Certified
- 2024-10-31
Frequently asked questions
- What is Jonathan Cheng's NPI number?
- Jonathan Cheng's National Provider Identifier (NPI) is 1669035283, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Cheng's specialty?
- Jonathan Cheng is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Cheng located?
- Jonathan Cheng's practice location on file with NPPES is 975 Sereno Dr, Vallejo, CA 94589-2441.
- What is Jonathan Cheng's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Cheng is (707) 651-1000.
- Does Jonathan Cheng accept Medicare?
- Jonathan Cheng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Cheng's NPI active?
- Yes — Jonathan Cheng's NPI (1669035283) is active in the NPPES registry as of the last update on 2024-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.