Jennifer Chen, MD
NPI 1376771758 · Gastroenterology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Chen, MD is a Gastroenterology Physician provider in San Francisco, CA (NPI 1376771758).
Provider details
- NPI number
- 1376771758
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 250627 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
57 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) |
|---|---|---|
| Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500 | 18 | $6 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 14 | $88 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 13 | $194 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 12 | $283 |
Typical Medicare-allowed amounts for these services range $6–$283 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 55 Fruit StGi UnitBoston, MA 02114-2621Phone: (617) 724-6113
Registry dates
- Enumerated
- 2009-06-24
- Last updated
- 2024-11-29
- Certified
- 2024-11-29
Frequently asked questions
- What is Jennifer Chen's NPI number?
- Jennifer Chen's National Provider Identifier (NPI) is 1376771758, 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 Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Chen located?
- Jennifer Chen's practice location on file with NPPES is 400 Parnassus Ave Fl 7, San Francisco, CA 94143-2202.
- What is Jennifer Chen's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Chen is (415) 502-4444.
- 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 (1376771758) is active in the NPPES registry as of the last update on 2024-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.