THEODORE K GREGORIUS MD INC
NPI 1265922397
Orthopaedic Surgery in Newport Beach, CA

Q: What is Theodore K Gregorius MD Inc's NPI number?

The NPI number for Theodore K Gregorius MD Inc is 1265922397. It was assigned to this organization in the NPPES registry on May 15, 2018.

Q: What is Theodore K Gregorius MD Inc's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Active since May 15, 2018

360 SAN MIGUEL DR., STE. 701, NEWPORT BEACH, CA 92660(949) 759-3600(949) 759-9265 Get Directions Write a Review

NPPES record last updated: December 14, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 14, 2018, Aug 13, 2018, May 15, 2018 (3 updates tracked since 2018).

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About Theodore K Gregorius Md Inc NPPES

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

THEODORE K GREGORIUS MD INC (NPI 1265922397) is a healthcare organization registered as an orthopaedic surgery in Newport Beach, California and active in the NPI registry since May 2018. The organization lists Theodore K Gregorius, President, as its authorized official.

NPPES Registry Identity

NPI1265922397

Entity TypeOrganization

Primary Taxonomy207X00000X

Legal Business NameTHEODORE K GREGORIUS MD INC

Location Address360 SAN MIGUEL DR., STE. 701Newport Beach, CA 92660

Mailing Address360 San Miguel Dr., Ste. 701Newport Beach, CA 92660 · (949) 759-3600 · Fax (949) 759-9265

Phone(949) 759-3600

Fax(949) 759-9265

Organization SubpartNo

Authorized OfficialTheodore K GregoriusPresident · (949) 759-3600

Enumeration DateMay 15, 2018

Last NPPES UpdateDecember 14, 20183 updates tracked since enumeration

✔ NPI 1265922397 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207X00000X

Definition

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

360 SAN MIGUEL DR., STE. 701, Newport Beach, CA 92660

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Theodore K Gregorius Md Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Theodore K Gregorius MD Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Theodore Gregorius, M.D.

Orthopedic Surgery

NPI 1013950450

360 SAN MIGUEL DR STE 701
Newport Beach, CA 92660

(949) 759-3600

✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Theodore K Gregorius MD Inc's NPI number?

The NPI number for Theodore K Gregorius MD Inc is 1265922397. It was assigned to this organization in the NPPES registry on May 15, 2018.

Where is Theodore K Gregorius MD Inc located?

Theodore K Gregorius MD Inc is located at 360 San Miguel Dr., Ste. 701, Newport Beach, CA 92660. The listed phone number is (949) 759-3600.

What is Theodore K Gregorius MD Inc's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Theodore K Gregorius MD Inc enrolled in Medicare?

Yes. Theodore K Gregorius MD Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Theodore K Gregorius MD Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Orthopedic Surgery) reassigns their Medicare billing to Theodore K Gregorius MD Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Theodore K Gregorius MD Inc was last updated on December 14, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.