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DR. MARK JOHN SEY M.D.
NPI 1366494718
Pediatrics in Philadelphia, PA

Active since May 16, 2006
6608 CASTOR AVE, PHILADELPHIA, PA 19149(215) 342-7711(215) 722-8712 Get Directions Write a Review

NPPES record last updated: April 4, 2013. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Mark John Sey M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK JOHN SEY M.D. (NPI 1366494718) is an individual pediatrics provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD011601E) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1366494718
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. MARK JOHN SEYCredential: M.D.
Location Address6608 CASTOR AVEPhiladelphia, PA 19149-2120
Mailing Address6608 Castor AvePhiladelphia, PA 19149-2120 · (215) 342-7711 · Fax (215) 722-8712
Phone(215) 342-7711
Fax(215) 722-8712
Sole ProprietorYes
Enumeration DateMay 16, 2006
Last NPPES UpdateApril 4, 2013
✔ NPI 1366494718 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in PA · MD011601E
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
6608 CASTOR AVE, Philadelphia, PA 19149
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Other Identifiers 2

Medicaid0681843PA
Medicare UPINC30320PA

Other Providers at the Same Location NPPES 11

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ELIZABETH HARDY BOWMAN CRNP
Nurse Practitioner (Family)
6608 CASTOR AVE
PHILADELPHIA, PA 19149
Philadelphia County (215) 342-7710
NANCY P BUCKLEY MD
Pediatrics
6608 CASTOR AVE
PHILADELPHIA, PA 19149
Philadelphia County (215) 342-7710
DR. FRED CARROLL M.D.
Pediatrics
6608 CASTOR AVE
PHILADELPHIA, PA 19149
Philadelphia County (215) 342-7711
E&M HEALTHCARE
Pediatrics
6608 CASTOR AVE
PHILA, PA 19149
Philadelphia County (215) 342-7710
MS. SAMANTHA MORGAN FEINBERG PA-C
Physician Assistant
6608 CASTOR AVE
PHILADELPHIA, PA 19149
Philadelphia County (215) 342-7710
KELSEA LEIGH-ANNE GREEN CRNP
Pediatrics
6608 CASTOR AVE
PHILADELPHIA, PA 19149
Philadelphia County (215) 275-8890
MRS. BLESSY THOMAS FNP
Nurse Practitioner (Pediatrics)
6608 CASTOR AVE
PHILADELPHIA, PA 19149
Philadelphia County (215) 342-7710
MS. COLLEEN ELIZABETH MCCABE SP016947
Nurse Practitioner (Family)
6608 CASTOR AVE
PHILADELPHIA, PA 19149
Philadelphia County (215) 342-7711

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Sey's NPI number?

The NPI number for Mark Sey is 1366494718. It was assigned to this individual provider in the NPPES registry on May 16, 2006.

Where is Mark Sey located?

Mark Sey practices at 6608 Castor Ave, Philadelphia, PA 19149. The listed phone number is (215) 342-7711.

What is Mark Sey's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

When was this NPI record last updated?

The NPPES record for Mark Sey was last updated on April 4, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.