Matthew Janssen, M.D.
NPI 1215399472 · Maternal & Fetal Medicine Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Janssen, M.D. is a Maternal & Fetal Medicine Physician provider in Philadelphia, PA (NPI 1215399472).
Provider details
- NPI number
- 1215399472
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
3 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 (2)
- 698 Mullica Hill RdMullica Hill, NJ 08062-4452Phone: (856) 508-3625
- 3400 Spruce StPhiladelphia, PA 19104-4238Phone: (215) 662-2982
Registry dates
- Enumerated
- 2016-03-25
- Last updated
- 2023-09-01
- Certified
- 2023-09-01
Frequently asked questions
- What is Matthew Janssen's NPI number?
- Matthew Janssen's National Provider Identifier (NPI) is 1215399472, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Janssen's specialty?
- Matthew Janssen is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Janssen located?
- Matthew Janssen's practice location on file with NPPES is 800 Spruce St, Philadelphia, PA 19107-6130.
- What is Matthew Janssen's phone number?
- The practice phone number listed in the NPPES registry for Matthew Janssen is (720) 201-6450.
- Does Matthew Janssen accept Medicare?
- Matthew Janssen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Janssen's NPI active?
- Yes — Matthew Janssen's NPI (1215399472) is active in the NPPES registry as of the last update on 2023-09-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.