DR. KAREN ELLIS ESTRADA-STEPHEN MD
NPI 1750812590
Obstetrics & Gynecology in Gilbert, AZ

Active since March 23, 2017PECOS EnrolledAccepts Medicare Assignment
3370 S MERCY RD STE 314, GILBERT, AZ 85297(480) 782-0993(833) 337-0386 Get Directions Write a Review

NPPES record last updated: April 22, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 22, 2026, Sep 21, 2022, Aug 3, 2021 and 2 more (5 updates tracked since 2017).

About Dr. Karen Ellis Estrada-stephen Md NPPES

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

DR. KAREN ELLIS ESTRADA-STEPHEN MD (NPI 1750812590) is an individual obstetrics & gynecology provider in Gilbert, Arizona, licensed in Arizona (63168) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS, maintains a secondary practice location in Queen Creek, and is a graduate of University Of Wisconsin School Of Medicine (2017).

NPPES Registry Identity

NPI1750812590
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. KAREN ELLIS ESTRADA-STEPHENCredential: MD
Location Address3370 S MERCY RD STE 314Gilbert, AZ 85297-0417
Mailing Address1661 E Camelback Road, Suite 200Phoenix, AZ 85016-3913 · (602) 422-9000 · Fax (602) 556-5951
Fax(833) 337-0386
Sole ProprietorNo
Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 2017
Enumeration DateMarch 23, 2017
Last NPPES UpdateApril 22, 20265 updates tracked since enumeration
NPPES CertifiedApril 22, 2026
NPI 1750812590 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License Licensed in AZ · 63168
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
3370 S MERCY RD STE 314, Gilbert, AZ 85297

Secondary Practice Location 1

Location 122711 S Ellsworth Rd Ste 104Queen Creek, AZ 85142-6789 · Phone (480) 782-0993 · Fax (833) 337-0386

Accepted Insurance

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

Dr. Karen Ellis Estrada-stephen Md 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 ID446522098
PECOS Enrollment IDI20210812002535
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.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
13 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85297 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
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$69.24 typical visit price
range $17.72 – $137.41
Typical copayment $17.31 (range $4.43 – $34.35)
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 5

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

Nurse Practitioner (Family)
3370 S MERCY RD STE 314
GILBERT, AZ 85297
Midwife
3370 S MERCY RD STE 314
GILBERT, AZ 85297
Registered Nurse (Maternal Newborn)
3370 S MERCY RD STE 314
GILBERT, AZ 85297
Advanced Practice Midwife
3370 S MERCY RD STE 314
GILBERT, AZ 85297
Advanced Practice Midwife
3370 S MERCY RD STE 314
GILBERT, AZ 85297

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 Karen Estrada-stephen's NPI number?

The NPI number for Karen Estrada-stephen is 1750812590. It was assigned to this individual provider in the NPPES registry on March 23, 2017.

Where is Karen Estrada-stephen located?

Karen Estrada-stephen practices at 3370 S Mercy Rd Ste 314, Gilbert, AZ 85297. The listed phone number is (480) 782-0993.

What is Karen Estrada-stephen's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Karen Estrada-stephen enrolled in Medicare?

Yes. Karen Estrada-stephen 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.

What insurance does Karen Estrada-stephen accept?

Health plans from Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc. and UnitedHealthcare list Karen Estrada-stephen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Karen Estrada-stephen was last updated on April 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.