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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

MARY MACKENZIE O'BRIEN PA-S
NPI 1518875772
Student in an Organized Health Care Education/Training Program in Fort Riley, KS

Active since August 31, 2026
650 HUEBNER RD, FORT RILEY, KS 66442(785) 239-7973 Get Directions Write a Review

NPPES record added: August 31, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

About Mary Mackenzie O'brien Pa-s NPPES

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

MARY MACKENZIE O'BRIEN PA-S (NPI 1518875772) is an individual student in an organized health care education/training program in Fort Riley, Kansas and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1518875772
Entity TypeIndividualFemale
Primary Taxonomy390200000X
Provider Legal NameMARY MACKENZIE O'BRIENCredential: PA-S
Location Address650 HUEBNER RDFort Riley, KS 66442-4030
Mailing Address173 Westgate DrElgin, IL 60123-4940 · (224) 639-7944
Phone(785) 239-7973
Sole ProprietorYes
Enumeration DateAugust 31, 2026
NPPES CertifiedAugust 27, 2026
✔ NPI 1518875772 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
650 HUEBNER RD, Fort Riley, KS 66442
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Other Providers at the Same Location NPPES 20

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

MRS. ANNIE MARIE MOSIER ESLIT O.D.
Optometrist
650 HUEBNER RD
FORT RILEY, KS 66442
Riley County (785) 240-7335
KATHRYN WESSEL PTA
Physical Therapy Assistant
650 HUEBNER RD
FORT RILEY, KS 66442
Riley County (785) 239-7964
PATRIZIA CRISTINA GROB DO
Obstetrics & Gynecology
650 HUEBNER RD
FT RILEY, KS 66442
Riley County (785) 239-3627
HENRY COLLETT
Physician Assistant
650 HUEBNER RD
FORT RILEY, KS 66442
Riley County (362) 778-5239
PATRICIA A KEEFE M.D.
Surgery
650 HUEBNER RD
FORT RILEY, KS 66442
Riley County (785) 239-7151
TERESSA D CHANDLER FNP-C
Nurse Practitioner (Family)
650 HUEBNER RD
FORT RILEY, KS 66442
Riley County (785) 239-7445
STEVEN ROBLES PSYD
Psychologist
650 HUEBNER RD
FORT RILEY, KS 66442
Riley County (785) 239-3627
KELLY PALMER MS, LAT, ATC
Specialist/Technologist (Athletic Trainer)
650 HUEBNER RD
FORT RILEY, KS 66442
Riley County (785) 239-0568

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 Mary O'brien's NPI number?

The NPI number for Mary O'brien is 1518875772. It was assigned to this individual provider in the NPPES registry on August 31, 2026.

Where is Mary O'brien located?

Mary O'brien practices at 650 Huebner Rd, Fort Riley, KS 66442. The listed phone number is (785) 239-7973.

What is Mary O'brien's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

When was this NPI record last updated?

The NPPES record for Mary O'brien was last updated on August 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days 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.