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DR. STEPHANIE J. WARSHESKI M.D.
NPI 1033538608
Obstetrics & Gynecology - Obstetrics in Orange, CA

Active since April 10, 2014PECOS Enrolled
3800 W CHAPMAN AVE STE 3400, ORANGE, CA 92868(714) 456-7733 Get Directions Write a Review

NPPES record last updated: January 22, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 15, 2023, Nov 14, 2016, Sep 27, 2016 and 1 more (4 updates tracked since 2016).

About Dr. Stephanie J. Warsheski M.d. NPPES

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

DR. STEPHANIE J. WARSHESKI M.D. (NPI 1033538608) is an individual obstetrics provider in Orange, California, licensed in California (A121952) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1033538608
Entity TypeIndividualFemale
Primary Taxonomy207VX0000X
Provider Legal NameDR. STEPHANIE J. WARSHESKICredential: M.D.
Location Address3800 W CHAPMAN AVE STE 3400Orange, CA 92868-1616
Mailing Address3800 W Chapman Ave Ste 3400Orange, CA 92868-1616 · (714) 456-7733
Phone(714) 456-7733
Sole ProprietorNo
Enumeration DateApril 10, 2014
Last NPPES UpdateJanuary 22, 20254 updates tracked since enumeration
NPPES CertifiedJanuary 22, 2025
✔ NPI 1033538608 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · ObstetricsAllopathic & Osteopathic Physicians
Taxonomy Code207VX0000X
License✔ Licensed in CA · A121952
Definition
A physician who specializes in diagnosis, treatment, and management of patients with obstetric conditions. Source: National Uniform Claim Committee
Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License 274549 (NY), A121952 (CA)
3800 W CHAPMAN AVE STE 3400, Orange, CA 92868
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Stephanie J. Warsheski M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Stephanie Warsheski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Of The University Of California
0.3 mi
Obstetrics & Gynecology
101 CITY DRIVE SOUTH, BLDG 56 SUITE 800
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 149 clinicians in this Medicare group
NPI 1356304034 (714) 456-6431

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92868 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

APARNA MANOCHA MD
Student in an Organized Health Care Education/Training Program
3800 W CHAPMAN AVE STE 3400
ORANGE, CA 92868
Orange County (714) 456-8224
VIRGINIA ELLA FONTENOT MD
Obstetrics & Gynecology
3800 W CHAPMAN AVE STE 3400
ORANGE, CA 92868
Orange County (714) 456-8000
KAYLEE FITZGERALD MD
Student in an Organized Health Care Education/Training Program
3800 W CHAPMAN AVE STE 3400
ORANGE, CA 92868
Orange County (714) 456-8224
MADELEINE EVA WEISS MD
Student in an Organized Health Care Education/Training Program
3800 W CHAPMAN AVE STE 3400
ORANGE, CA 92868
Orange County (714) 456-8224
SEUNGHO LEE
Student in an Organized Health Care Education/Training Program
3800 W CHAPMAN AVE STE 3400
ORANGE, CA 92868
Orange County (714) 456-8224
DR. SHAHNAZ VELLANI MD
Student in an Organized Health Care Education/Training Program
3800 W CHAPMAN AVE STE 3400
ORANGE, CA 92868
Orange County (714) 456-8224
SHEBANI DANDEKAR MD, MS
Student in an Organized Health Care Education/Training Program
3800 W CHAPMAN AVE STE 3400
ORANGE, CA 92868
Orange County (714) 456-3526
MEGAN MARIUM ASADIAN I MD
Student in an Organized Health Care Education/Training Program
3800 W CHAPMAN AVE STE 3400
ORANGE, CA 92868
Orange County (714) 456-8224

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 Stephanie Warsheski's NPI number?

The NPI number for Stephanie Warsheski is 1033538608. It was assigned to this individual provider in the NPPES registry on April 10, 2014.

Where is Stephanie Warsheski located?

Stephanie Warsheski practices at 3800 W Chapman Ave Ste 3400, Orange, CA 92868. The listed phone number is (714) 456-7733.

What is Stephanie Warsheski's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Obstetrics, with taxonomy code 207VX0000X.

Is Stephanie Warsheski enrolled in Medicare?

Yes. Stephanie Warsheski is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stephanie Warsheski's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Warsheski reassigns Medicare benefits to Regents Of The University Of California (Orange, CA). The 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 Stephanie Warsheski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Stephanie Warsheski was last updated on January 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.