Jack Song
NPI 1538342043 · Family Medicine Physician · Martinez, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Song is a Family Medicine Physician provider in Martinez, CA (NPI 1538342043).
Provider details
- NPI number
- 1538342043
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- A85362 (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
18 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 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 71 | 48 |
| Amlodipine Besylate | 45 | 28 |
| Levothyroxine Sodium | 38 | 27 |
| Lisinopril | 34 | 22 |
| Tizanidine Hcl | 31 | 24 |
| Alendronate Sodium | 26 | 14 |
| Losartan Potassium | 26 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-12-07
- Last updated
- 2022-02-11
Frequently asked questions
- What is Jack Song's NPI number?
- Jack Song's National Provider Identifier (NPI) is 1538342043, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Song's specialty?
- Jack Song is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jack Song located?
- Jack Song's practice location on file with NPPES is 2500 Alhambra Ave, Martinez, CA 94553-3156.
- What is Jack Song's phone number?
- The practice phone number listed in the NPPES registry for Jack Song is (925) 370-5110.
- Does Jack Song accept Medicare?
- Jack Song is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jack Song's NPI active?
- Yes — Jack Song's NPI (1538342043) is active in the NPPES registry as of the last update on 2022-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.