Benjamin Leong, M.D.
NPI 1184042202 · Family Medicine Physician · Foothill Ranch, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Leong, M.D. is a Family Medicine Physician provider in Foothill Ranch, CA (NPI 1184042202).
Provider details
- NPI number
- 1184042202
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A141044 (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
12 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Topiramate | 84 | 47 |
| Semaglutidebrand: Ozempic | 67 | 17 |
| Metformin Hclbrand: Metformin Hcl Er | 61 | 31 |
| Bupropion Hclbrand: Bupropion Hcl Sr | 13 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$128 across 1 record (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)
- 450 E Spring St#1Long Beach, CA 90806-1625Phone: (562) 933-0055Fax: (562) 933-0078
Registry dates
- Enumerated
- 2014-04-04
- Last updated
- 2021-12-01
- Certified
- 2021-12-01
Frequently asked questions
- What is Benjamin Leong's NPI number?
- Benjamin Leong's National Provider Identifier (NPI) is 1184042202, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Leong's specialty?
- Benjamin Leong is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Benjamin Leong located?
- Benjamin Leong's practice location on file with NPPES is 26740 Towne Centre Dr Bldg C, Foothill Ranch, CA 92610-2839.
- What is Benjamin Leong's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Leong is (949) 588-9293.
- Does Benjamin Leong accept Medicare?
- Benjamin Leong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Leong's NPI active?
- Yes — Benjamin Leong's NPI (1184042202) is active in the NPPES registry as of the last update on 2021-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.