Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

NICHOLAS DEMETRIOS STEKAS
NPI 1699338715
Orthopaedic Surgery - Sports Medicine in Mission Viejo, CA

Q: What is Nicholas Stekas's NPI number?

The NPI number for Nicholas Stekas is 1699338715. It was assigned to this individual provider in the NPPES registry on April 15, 2019.

Q: What is Nicholas Stekas's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Sports Medicine, with taxonomy code 207XX0005X.

Q: When was this NPI record last updated?

The NPPES record for Nicholas Stekas was last updated on August 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.

Active since April 15, 2019PECOS Enrolled

26730 CROWN VALLEY PKWY STE 200, MISSION VIEJO, CA 92691(949) 364-2154 Get Directions Write a Review

NPPES record last updated: August 19, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 19, 2026, Apr 15, 2019 (2 updates tracked since 2019).

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About Nicholas Demetrios Stekas NPPES

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

NICHOLAS DEMETRIOS STEKAS (NPI 1699338715) is an individual sports medicine provider in Mission Viejo, California, licensed in California (A195581) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, maintains a secondary practice location in San Clemente, and is a graduate of Rutgers New Jersey Medical School (2019).

NPPES Registry Identity

NPI1699338715

Entity TypeIndividualMale

Primary Taxonomy207XX0005X

Provider Legal NameNICHOLAS DEMETRIOS STEKAS

Location Address26730 CROWN VALLEY PKWY STE 200Mission Viejo, CA 92691-8001

Mailing Address26730 Crown Valley Pkwy Ste 200Mission Viejo, CA 92691-8001 · (949) 364-2154

Phone(949) 364-2154

Sole ProprietorNo

Medical School CMSRutgers New Jersey Medical SchoolGraduated 2019

Enumeration DateApril 15, 2019

Last NPPES UpdateAugust 19, 20262 updates tracked since enumeration

NPPES CertifiedAugust 19, 2026

✔ NPI 1699338715 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic Surgery · Sports MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207XX0005X

License✔ Licensed in CA · A195581

Definition

An orthopaedic surgeon trained in sports medicine provides appropriate care for all structures of the musculoskeletal system directly affected by participation in sporting activity. This specialist is proficient in areas including conditioning, training and fitness, athletic performance and the impact of dietary supplements, pharmaceuticals, and nutrition on performance and health, coordination of care within the team setting utilizing other health care professionals, field evaluation and management, soft tissue biomechanics and injury healing and repair. Knowledge and understanding of the principles and techniques of rehabilitation, athletic equipment and orthotic devices enables the specialist to prevent and manage athletic injuries.

26730 CROWN VALLEY PKWY STE 200, Mission Viejo, CA 92691

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Secondary Practice Location 1

Location 1653 Camino De Los Mares Ste 109San Clemente, CA 92673-2808 · Phone (949) 661-2423

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nicholas Demetrios Stekas is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4789115536

PECOS Enrollment IDI20250220003501

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 4

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

DR. MICHAEL D CUMMINGS MD

Psychiatry & Neurology (Neurology)

26730 CROWN VALLEY PKWY STE 200
MISSION VIEJO, CA 92691

Orange County (949) 235-1508

DR. WILLIAM WANG M.D.

Orthopaedic Surgery (Foot and Ankle Surgery)

26730 CROWN VALLEY PKWY STE 200
MISSION VIEJO, CA 92691

Orange County (949) 364-2154

MR. ROGER D WILLIAMS PT

Physical Therapist

26730 CROWN VALLEY PKWY STE 200
MISSION VIEJO, CA 92691

Orange County (949) 364-5210

MICHAEL J FITZPATRICK MD

Orthopaedic Surgery (Sports Medicine)

26730 CROWN VALLEY PKWY STE 200
MISSION VIEJO, CA 92691

Orange County (949) 364-2154

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 Nicholas Stekas's NPI number?

The NPI number for Nicholas Stekas is 1699338715. It was assigned to this individual provider in the NPPES registry on April 15, 2019.

Where is Nicholas Stekas located?

Nicholas Stekas practices at 26730 Crown Valley Pkwy Ste 200, Mission Viejo, CA 92691. The listed phone number is (949) 364-2154.

What is Nicholas Stekas's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Sports Medicine, with taxonomy code 207XX0005X.

Is Nicholas Stekas enrolled in Medicare?

Yes. Nicholas Stekas is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Nicholas Stekas was last updated on August 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.