Jair Wong, MD
NPI 1972541266 · Internal Medicine Physician · West Covina, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jair Wong, MD is a Internal Medicine Physician provider in West Covina, CA (NPI 1972541266).
Provider details
- NPI number
- 1972541266
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G75543 (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
20 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
235 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 199 | $139 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 36 | $140 |
Typical Medicare-allowed amounts for these services range $139–$140 (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 · 108 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 462 | 117 |
| Losartan Potassium | 243 | 61 |
| Amlodipine Besylate | 243 | 65 |
| Levothyroxine Sodium | 207 | 41 |
| Metformin Hcl | 200 | 47 |
| Omeprazole | 143 | 36 |
| Famotidine | 127 |
Practice location
Mailing address
Additional practice locations (1)
- 1535 W. Merced AveSuite #102West Covina, CA 91790Phone: (626) 962-9108Fax: (626) 960-7337
Registry dates
- Enumerated
- 2006-06-02
- Last updated
- 2018-10-08
Frequently asked questions
- What is Jair Wong's NPI number?
- Jair Wong's National Provider Identifier (NPI) is 1972541266, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jair Wong's specialty?
- Jair Wong is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jair Wong located?
- Jair Wong's practice location on file with NPPES is 906 S Sunset Ave Ste 102, West Covina, CA 91790-3400.
- What is Jair Wong's phone number?
- The practice phone number listed in the NPPES registry for Jair Wong is (626) 962-9108.
- Does Jair Wong accept Medicare?
- Jair Wong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jair Wong's NPI active?
- Yes — Jair Wong's NPI (1972541266) is active in the NPPES registry as of the last update on 2018-10-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.