Jennifer Chen, MD
NPI 1619321304 · Family Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Chen, MD is a Family Medicine Physician provider in San Francisco, CA (NPI 1619321304).
Provider details
- NPI number
- 1619321304
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A164480 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
847 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 225 | $148 |
| Administration of Influenza Virus VaccineG0008 | 124 | $39 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 106 | $18 |
| Admn Sarscov2 Vacc 1 Dose90480 | 93 | $52 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 71 | $155 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 44 | $24 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 99 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,098 | 329 |
| Losartan Potassium | 756 | 220 |
| Rsvpref3 Antigen/As01e/Pfbrand: Arexvy | 626 | 626 |
| Amlodipine Besylate | 586 | 175 |
| Varicella-Zoster Ge/As01b/Pfbrand: Shingrix | 312 | 193 |
| Alendronate Sodium | 283 | 98 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,770 across 75 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 386 Gellert BlvdDaly City, CA 94015-2611Phone: (650) 761-3500Fax: (650) 761-3580
Registry dates
- Enumerated
- 2016-04-19
- Last updated
- 2026-05-21
- Certified
- 2026-05-21
Frequently asked questions
- What is Jennifer Chen's NPI number?
- Jennifer Chen's National Provider Identifier (NPI) is 1619321304, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Chen's specialty?
- Jennifer Chen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Chen located?
- Jennifer Chen's practice location on file with NPPES is 845 Jackson St # B1, San Francisco, CA 94133-4851.
- What is Jennifer Chen's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Chen is (415) 677-2370.
- Does Jennifer Chen accept Medicare?
- Jennifer Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Chen's NPI active?
- Yes — Jennifer Chen's NPI (1619321304) is active in the NPPES registry as of the last update on 2026-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.