Andrew Ng, MD
NPI 1871716910 · Internal Medicine Physician · Millbrae, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Ng, MD is a Internal Medicine Physician provider in Millbrae, CA (NPI 1871716910).
Provider details
- NPI number
- 1871716910
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 4301088587 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
6,056 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 3,562 | $86 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 1,663 | $123 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 382 | $205 |
| Advance Care Planning, First 30 Minutes99497 | 368 | $84 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 81 | $175 |
Typical Medicare-allowed amounts for these services range $84–$205 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 193 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,249 | 198 |
| Gabapentin | 726 | 105 |
| Amlodipine Besylate | 700 | 127 |
| Apixabanbrand: Eliquis | 593 | 66 |
| Furosemide | 513 | 77 |
| Pantoprazole Sodium | 425 | 65 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-10
- Last updated
- 2014-07-25
Frequently asked questions
- What is Andrew Ng's NPI number?
- Andrew Ng's National Provider Identifier (NPI) is 1871716910, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Ng's specialty?
- Andrew Ng is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Andrew Ng located?
- Andrew Ng's practice location on file with NPPES is 423 Broadway, Millbrae, CA 94030-1905.
- What is Andrew Ng's phone number?
- The practice phone number listed in the NPPES registry for Andrew Ng is (650) 732-9721.
- Does Andrew Ng accept Medicare?
- Andrew Ng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Ng's NPI active?
- Yes — Andrew Ng's NPI (1871716910) is active in the NPPES registry as of the last update on 2014-07-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.