Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Katherine Atienza Orellana, DO

Individual provider Pediatric Gastroenterology Physician · NPI 1265643068

Katherine Atienza Orellana, DO is a Pediatric Medicine in Hackensack, New Jersey. Graduated from Rowan University School of Osteopathic Medicine in 2004, 22 years ago. Practices with Hackensack Meridian Health Medical Group - Complex Care PC, a 28-clinician group and accepts Medicare assignment. Licensed in New Jersey and New York.

Years since qualifying
22
Trained at
Rowan University School of Osteopathic Medicine
Licensed in
NJ, NY
In the registry since
2007
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

155 Polifly Rd Ste 102
Hackensack, NJ 07601-1771
Phone: (551) 996-8840
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Gastroenterology Physician (primary) Taxonomy 2080P0206X · Licence 25MB08263800 (NJ)
Pediatric Gastroenterology Physician Taxonomy 2080P0206X · Licence 245599 (NY)

Record details

NPI number1265643068
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 24, 2007
Last updated in NPPESJune 13, 2024
Certification dateJune 13, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPEDIATRIC MEDICINE
Medical schoolROWAN UNIVERSITY SCHOOL OF OSTEOPATHIC MEDICINE
Graduated 2004 (22 years in practice)
Group practice Hackensack Meridian Health Medical Group - Complex Care Pc — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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