Jennifer Duffy, MD
NPI 1841631801 · Maternal & Fetal Medicine Physician · Burlingame, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Duffy, MD is a Maternal & Fetal Medicine Physician provider in Burlingame, CA (NPI 1841631801).
Provider details
- NPI number
- 1841631801
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 135488 (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
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (1)
- 800 N Main StSanta Ana, CA 92701-3576Phone: (714) 456-7002
Registry dates
- Enumerated
- 2013-07-07
- Last updated
- 2025-12-31
- Certified
- 2025-12-31
Frequently asked questions
- What is Jennifer Duffy's NPI number?
- Jennifer Duffy's National Provider Identifier (NPI) is 1841631801, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Duffy's specialty?
- Jennifer Duffy is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Duffy located?
- Jennifer Duffy's practice location on file with NPPES is 1720 El Camino Real, Burlingame, CA 94010-3224.
- What is Jennifer Duffy's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Duffy is (415) 600-6400.
- Does Jennifer Duffy accept Medicare?
- Jennifer Duffy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Duffy's NPI active?
- Yes — Jennifer Duffy's NPI (1841631801) is active in the NPPES registry as of the last update on 2025-12-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.