NPPES file of Aug 9, 2026

Matthew Kelly Janssen, M.D.

Maternal & Fetal Medicine Physician · Philadelphia, PA

Matthew Kelly Janssen, M.D. is a maternal & fetal medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1215399472, issued on Mar 25, 2016. Check the license on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215399472
Name
Matthew Kelly Janssen
Credential
M.D.
Primary taxonomy
Maternal & Fetal Medicine Physician 207VM0101X
License number
25MA11848600 NJ
Self-reported in NPPES; status is on the state search
Practice location
800 Spruce St, Philadelphia, PA 19107
Phone
(720) 201-6450
Enumerated
Mar 25, 2016
Record last updated
Sep 1, 2023
Medicare enrollment
Enrolled (PECOS I20230803003238); accepts Medicare assignment
Medical or professional school
Saint Louis University School Of Medicine, 2016
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest maternal & fetal medicine physician records → All 143 in Pennsylvania → Look up another NPI →

Also registered at 800 Spruce St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ahmad Abdalla, MDInternal Medicine Physician1730981127
  2. Annabelle Abdo, DOObstetrics & Gynecology Physician1518583665
  3. Omar AbdounStudent in an Organized Health Care Education/Training Program1669260279
  4. Monica Aber, CRNPAcute Care Nurse Practitioner1922876820
  5. Jennifer Acquaviva, MPTSpecialist1346366820
  6. Sarah Adams, DOStudent in an Organized Health Care Education/Training Program1184327108

Verify Matthew Kelly Janssen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through 2 group practices

  1. Shore Memorial HospitalSomers Point, NJ
  2. University OF Penn - Medical GroupPhiladelphia, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Matthew Kelly Janssen among 143 maternal & fetal medicine physician records in Pennsylvania

Matthew Kelly Janssen, M.D. is one of 143 maternal & fetal medicine physician records with a practice address in Pennsylvania. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 87% of them.

  • NPI issued2016 · 87% of these records are older, 10% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2016 · median 2002 among the 99 with a school on file
  • Record last updated2023 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VM0101X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Maternal & Fetal Medicine Physician providers in Pennsylvania

There are 143 maternal & fetal medicine physician records in Pennsylvania.

All 143 in Pennsylvania → Every provider in Philadelphia → Maternal & Fetal Medicine Physician nationwide →

The 8 maternal & fetal medicine physician records with the nearest ZIP codes

  1. Huda Al-Kouatly, M.D.Philadelphia, PA 191071548337041
  2. Jason Baxter, M.D.Philadelphia, PA 191071093731184
  3. Whitney Bender, MDPhiladelphia, PA 191071376953604
  4. Vincenzo Berghella, MDPhiladelphia, PA 191071013919570
  5. Celeste Durnwald, MDPhiladelphia, PA 191071831153352
  6. Paula Edelson, M.D.Philadelphia, PA 191071194087270
  7. Michal Elovitz, MDPhiladelphia, PA 191071053422600
  8. Sophie Green, MDPhiladelphia, PA 191071992267934

Common questions

What is Matthew Kelly Janssen, M.D.'s NPI number?

Matthew Kelly Janssen, M.D.'s National Provider Identifier (NPI) is 1215399472, issued on Mar 25, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Kelly Janssen, M.D. located?

The NPPES record lists a practice address at 800 Spruce St, Philadelphia, PA, 19107. Phone: (720) 201-6450. Providers update this record themselves, so call before visiting.

How can I verify Matthew Kelly Janssen, M.D.'s license?

Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.