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MARK JOHN SCHALK RN
NPI 1225981749
Registered Nurse in Del City, OK

Active since February 16, 2026
1900 S SUNNYLANE RD, DEL CITY, OK 73115(405) 677-5777 Get Directions Write a Review

NPPES record last updated: February 16, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mark John Schalk Rn NPPES

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

MARK JOHN SCHALK RN (NPI 1225981749) is an individual registered nurse in Del City, Oklahoma, licensed in Oklahoma (R0079023) and active in the NPI registry since February 2026.

NPPES Registry Identity

NPI1225981749
Entity TypeIndividualMale
Primary Taxonomy163W00000X
Provider Legal NameMARK JOHN SCHALKCredential: RN
Location Address1900 S SUNNYLANE RDDel City, OK 73115-3102
Mailing Address10405 Se 23rd StMidwest City, OK 73130-7639 · (405) 677-5777
Phone(405) 677-5777
Sole ProprietorYes
Enumeration DateFebruary 16, 2026
NPPES CertifiedFebruary 16, 2026
✔ NPI 1225981749 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRegistered NurseNursing Service Providers
Taxonomy Code163W00000X
License✔ Licensed in OK · R0079023
Definition
(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span.
1900 S SUNNYLANE RD, Del City, OK 73115
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Other Providers at the Same Location NPPES

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

KELCIE DENYS WOOD ATC
Specialist/Technologist (Athletic Trainer)
1900 S SUNNYLANE RD
DEL CITY, OK 73115
Oklahoma County (409) 926-1991

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 Schalk's NPI number?

The NPI number for Mark Schalk is 1225981749. It was assigned to this individual provider in the NPPES registry on February 16, 2026.

Where is Mark Schalk located?

Mark Schalk practices at 1900 S Sunnylane Rd, Del City, OK 73115. The listed phone number is (405) 677-5777.

What is Mark Schalk's specialty?

The primary specialty registered for this NPI is Registered Nurse with taxonomy code 163W00000X.

When was this NPI record last updated?

The NPPES record for Mark Schalk was last updated on February 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.