Don Ng, MD
NPI 1487618492 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Don Ng, MD is a Internal Medicine Physician provider in San Francisco, CA (NPI 1487618492).
Provider details
- NPI number
- 1487618492
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- G65345 (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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
719 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 316 | $162 |
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician OrG2212 | 262 | $35 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 113 | $19 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 28 | $110 |
Typical Medicare-allowed amounts for these services range $19–$162 (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 · 82 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 343 | 104 |
| Amlodipine Besylate | 212 | 63 |
| Rosuvastatin Calcium | 188 | 54 |
| Levothyroxine Sodium | 165 | 45 |
| Metformin Hcl | 150 | 49 |
| Pantoprazole Sodium | 110 | 36 |
| Fluticasone Propionate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-14
- Last updated
- 2007-07-09
Frequently asked questions
- What is Don Ng's NPI number?
- Don Ng's National Provider Identifier (NPI) is 1487618492, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Don Ng's specialty?
- Don Ng is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Don Ng located?
- Don Ng's practice location on file with NPPES is 400 Parnassus Ave, San Francisco, CA 94143-2202.
- What is Don Ng's phone number?
- The practice phone number listed in the NPPES registry for Don Ng is (415) 353-4624.
- Does Don Ng accept Medicare?
- Don Ng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Don Ng's NPI active?
- Yes — Don Ng's NPI (1487618492) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.