Susanna Chou, M.D.
NPI 1104889724 · Family Medicine Physician · Chula Vista, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Susanna Chou, M.D. is a Family Medicine Physician provider in Chula Vista, CA (NPI 1104889724).
Provider details
- NPI number
- 1104889724
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A73158 (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
566 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 295 | $96 |
| Administration of Influenza Virus VaccineG0008 | 55 | $35 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 49 | $137 |
| Admn Sarscov2 Vacc 1 Dose90480 | 44 | $38 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 44 | $139 |
| Hemoglobin A1c Level83036 | 23 | $10 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 54 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 99 | 26 |
| Atorvastatin Calcium | 84 | 25 |
| Amlodipine Besylate | 78 | 24 |
| Sertraline Hcl | 59 | 13 |
| Levothyroxine Sodium | 55 | 13 |
| Empagliflozinbrand: Jardiance | 46 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-07
- Last updated
- 2010-01-20
Frequently asked questions
- What is Susanna Chou's NPI number?
- Susanna Chou's National Provider Identifier (NPI) is 1104889724, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Susanna Chou's specialty?
- Susanna Chou is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Susanna Chou located?
- Susanna Chou's practice location on file with NPPES is 340 4th Avenue, Chula Vista, CA 91910-3813.
- What is Susanna Chou's phone number?
- The practice phone number listed in the NPPES registry for Susanna Chou is (619) 425-5559.
- Does Susanna Chou accept Medicare?
- Susanna Chou is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Susanna Chou's NPI active?
- Yes — Susanna Chou's NPI (1104889724) is active in the NPPES registry as of the last update on 2010-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.