Helen Man-Son-Hing, MD
NPI 1033293022 · Internal Medicine Physician · Novato, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Helen Man-Son-Hing, MD is a Internal Medicine Physician provider in Novato, CA (NPI 1033293022).
Provider details
- NPI number
- 1033293022
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A63821 (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 · 78 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 442 | 153 |
| Levothyroxine Sodium | 338 | 117 |
| Amlodipine Besylate | 327 | 108 |
| Losartan Potassium | 243 | 86 |
| Lisinopril | 215 | 74 |
| Hydrochlorothiazide | 170 | 64 |
| Alendronate Sodium | 140 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-25
- Last updated
- 2021-12-13
Frequently asked questions
- What is Helen Man-Son-Hing's NPI number?
- Helen Man-Son-Hing's National Provider Identifier (NPI) is 1033293022, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helen Man-Son-Hing's specialty?
- Helen Man-Son-Hing is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Helen Man-Son-Hing located?
- Helen Man-Son-Hing's practice location on file with NPPES is 97 San Marin Dr, Novato, CA 94945-1100.
- What is Helen Man-Son-Hing's phone number?
- The practice phone number listed in the NPPES registry for Helen Man-Son-Hing is (415) 899-7400.
- Does Helen Man-Son-Hing accept Medicare?
- Helen Man-Son-Hing is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Helen Man-Son-Hing's NPI active?
- Yes — Helen Man-Son-Hing's NPI (1033293022) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.