1. Home
  2. Directory
  3. Oklahoma
  4. City
  5. Nurse Practitioner
  6. NPI Profile

MR. JAMES LEWIS CONSTANZER APRN-CNP
NPI 1285171413
Nurse Practitioner in Oklahoma City, OK

Active since January 26, 2017
900 NW 12TH ST, OKLAHOMA CITY, OK 73106(405) 516-0276(405) 493-0703 Get Directions Write a Review

NPPES record last updated: January 2, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 2, 2026, Jan 26, 2017 (2 updates tracked since 2017).

About Mr. James Lewis Constanzer Aprn-cnp NPPES

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

MR. JAMES LEWIS CONSTANZER APRN-CNP (NPI 1285171413) is an individual nurse practitioner in Oklahoma City, Oklahoma, licensed in Oklahoma (R0123174) and active in the NPI registry since January 2017.

NPPES Registry Identity

NPI1285171413
Entity TypeIndividualMale
Primary Taxonomy363L00000X
Provider Legal NameMR. JAMES LEWIS CONSTANZERCredential: APRN-CNP
Location Address900 NW 12TH STOklahoma City, OK 73106-6804
Mailing Address900 Nw 12th StOklahoma City, OK 73106-6804 · (941) 757-9545 · Fax (405) 493-0703
Phone(405) 516-0276
Fax(405) 493-0703
Sole ProprietorNo
Enumeration DateJanuary 26, 2017
Last NPPES UpdateJanuary 2, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 2, 2026
✔ NPI 1285171413 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in OK · R0123174
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedNurse Practitioner · Adult HealthTaxonomy 363LA2200X · License R0123174 (OK)
Also ListedNurse Practitioner · GerontologyTaxonomy 363LG0600X · License R0123174 (OK)
900 NW 12TH ST, Oklahoma City, OK 73106
Open in Google Maps ↗

Other Providers at the Same Location NPPES

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

SARA LACY-ANTONELLI APRN, NP-C
Nurse Practitioner (Family)
900 NW 12TH ST
OKLAHOMA CITY, OK 73106
Oklahoma County (405) 516-0276

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 James Constanzer's NPI number?

The NPI number for James Constanzer is 1285171413. It was assigned to this individual provider in the NPPES registry on January 26, 2017.

Where is James Constanzer located?

James Constanzer practices at 900 NW 12th St, Oklahoma City, OK 73106. The listed phone number is (405) 516-0276.

What is James Constanzer's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

When was this NPI record last updated?

The NPPES record for James Constanzer was last updated on January 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.