Stanley Ng, MD
NPI 1952460560 · Internal Medicine Physician · Fontana, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stanley Ng, MD is a Internal Medicine Physician provider in Fontana, CA (NPI 1952460560).
Provider details
- NPI number
- 1952460560
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G72194 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 48 | 36 |
| Amlodipine Besylate | 31 | 26 |
| Lisinopril | 18 | 16 |
| Rosuvastatin Calcium | 18 | 15 |
| Metformin Hcl | 15 | — |
| Metformin Hclbrand: Metformin Hcl Er | 15 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-08
- Last updated
- 2021-12-02
Frequently asked questions
- What is Stanley Ng's NPI number?
- Stanley Ng's National Provider Identifier (NPI) is 1952460560, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stanley Ng's specialty?
- Stanley Ng is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stanley Ng located?
- Stanley Ng's practice location on file with NPPES is 9961 Sierra Ave, Fontana, CA 92335-6720.
- What is Stanley Ng's phone number?
- The practice phone number listed in the NPPES registry for Stanley Ng is (909) 427-3910.
- Does Stanley Ng accept Medicare?
- Stanley Ng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stanley Ng's NPI active?
- Yes — Stanley Ng's NPI (1952460560) is active in the NPPES registry as of the last update on 2021-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.