Michael Leong, M.D.
NPI 1639125354 · Family Medicine Physician · Highland, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Leong, M.D. is a Family Medicine Physician provider in Highland, CA (NPI 1639125354).
Provider details
- NPI number
- 1639125354
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A48608 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
212 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 100 | $131 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 48 | $94 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 33 | $3 |
| Administration of Pneumococcal VaccineG0009 | 16 | $33 |
| Administration of Influenza Virus VaccineG0008 | 15 | $33 |
Typical Medicare-allowed amounts for these services range $3–$131 (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 · 119 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 766 | 240 |
| Amlodipine Besylate | 355 | 104 |
| Levothyroxine Sodium | 305 | 86 |
| Gabapentin | 271 | 68 |
| Lisinopril | 267 | 75 |
| Metformin Hcl | 264 | 73 |
| Hydrochlorothiazide | 241 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$50 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
Additional practice locations (1)
- 7223 Church StSuite C1Highland, CA 92346-5869Phone: (909) 862-1191Fax: (909) 796-4158
Registry dates
- Enumerated
- 2006-05-25
- Last updated
- 2025-12-30
- Certified
- 2025-12-30
Frequently asked questions
- What is Michael Leong's NPI number?
- Michael Leong's National Provider Identifier (NPI) is 1639125354, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Leong's specialty?
- Michael Leong is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Leong located?
- Michael Leong's practice location on file with NPPES is 7000 Boulder Ave, Highland, CA 92346-3348.
- What is Michael Leong's phone number?
- The practice phone number listed in the NPPES registry for Michael Leong is (909) 862-1191.
- Does Michael Leong accept Medicare?
- Michael Leong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Leong's NPI active?
- Yes — Michael Leong's NPI (1639125354) is active in the NPPES registry as of the last update on 2025-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.