Helen Wong-Sexton, M.D.
NPI 1144563339 · Internal Medicine Physician · Fremont, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Helen Wong-Sexton, M.D. is a Internal Medicine Physician provider in Fremont, CA (NPI 1144563339).
Provider details
- NPI number
- 1144563339
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
259 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 71 | $154 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 70 | $110 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 47 | $156 |
| 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 | 29 | $19 |
| Admn Sarscov2 Vacc 1 Dose90480 | 28 | $52 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 132 | 44 |
| Amlodipine Besylate | 82 | 25 |
| Losartan Potassium | 65 | 19 |
| Omeprazole | 52 | 15 |
| Simvastatin | 48 | 15 |
| Metformin Hclbrand: Metformin Hcl Er | 40 | — |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-04-05
- Last updated
- 2021-08-26
- Certified
- 2021-08-26
Frequently asked questions
- What is Helen Wong-Sexton's NPI number?
- Helen Wong-Sexton's National Provider Identifier (NPI) is 1144563339, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helen Wong-Sexton's specialty?
- Helen Wong-Sexton is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Helen Wong-Sexton located?
- Helen Wong-Sexton's practice location on file with NPPES is 3200 Kearney St., Fremont, CA 94538-2299.
- What is Helen Wong-Sexton's phone number?
- The practice phone number listed in the NPPES registry for Helen Wong-Sexton is (510) 490-1222.
- Does Helen Wong-Sexton accept Medicare?
- Helen Wong-Sexton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Helen Wong-Sexton's NPI active?
- Yes — Helen Wong-Sexton's NPI (1144563339) is active in the NPPES registry as of the last update on 2021-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.