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DR. GABRIELLE SIMONE ALEXANDER M.D
NPI 1124480413
Obstetrics & Gynecology in Portland, OR

Active since March 24, 2016PECOS EnrolledAccepts Medicare Assignment
87.76/100
CMS Quality Rating
545 NE 47TH AVE STE 102, PORTLAND, OR 97213(503) 215-6262 Get Directions Write a Review

NPPES record last updated: October 2, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 2, 2020, Sep 11, 2020, Mar 24, 2016 (3 updates tracked since 2016).

About Dr. Gabrielle Simone Alexander M.d NPPES

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

DR. GABRIELLE SIMONE ALEXANDER M.D (NPI 1124480413) is an individual obstetrics & gynecology provider in Portland, Oregon, licensed in Oregon (MD197947) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS, is affiliated with Providence Portland Medical Center, and maintains a secondary practice location in Bronx.

NPPES Registry Identity

NPI1124480413
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. GABRIELLE SIMONE ALEXANDERCredential: M.D
Location Address545 NE 47TH AVE STE 102Portland, OR 97213-2237
Mailing AddressPo Box 3158Portland, OR 97208-3158 · (503) 215-6494
Phone(503) 215-6262
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateMarch 24, 2016
Last NPPES UpdateOctober 2, 20203 updates tracked since enumeration
NPPES CertifiedOctober 2, 2020
✔ NPI 1124480413 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in OR · MD197947
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.
545 NE 47TH AVE STE 102, Portland, OR 97213
Open in Google Maps ↗

Secondary Practice Location 1

Location 1234 E 149th StBronx, NY 10451-5504 · Phone (954) 665-3786

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gabrielle Simone Alexander M.d 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 ID4284056698
PECOS Enrollment IDI20200611002501
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 Reassignments

4

Medicare enrollment records show Gabrielle Alexander reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Providence Health & Services - Oregon
0.2 mi
General Acute Care Hospital
4805 NE GLISAN ST
Portland, OR 97213
  • Reassigned Medicare billing, Oregon enrollment
  • 676 clinicians in this Medicare group
NPI 1003991845 (503) 451-3000
Providence Health & Services - Oregon
0.2 mi
Hematology & Oncology
4805 NE GLISAN ST STE 11N
Portland, OR 97213
  • Reassigned Medicare billing, Oregon enrollment
  • 1,501 clinicians in this Medicare group
NPI 1316197692 (503) 215-5696
Providence Health & Services Oregon
5.4 mi
General Acute Care Hospital
10150 SE 32ND AVE
Milwaukie, OR 97222
  • Reassigned Medicare billing, Oregon enrollment
  • 229 clinicians in this Medicare group
NPI 1366536963 (503) 451-3000
Providence Health & Services - Oregon
7.7 mi
Clinic/Center
9205 SW BARNES RD, SUITE 20
Portland, OR 97225
  • Reassigned Medicare billing, Oregon enrollment
  • 753 clinicians in this Medicare group
NPI 1235259532 (503) 216-2229

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Providence Portland Medical Center

Acute Care Hospitals · Portland, OR
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380061
Location4805 NE Glisan StreetPortland, OR 97213 · Multnomah County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97213 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
$134.16 typical visit price
range $58.99 – $176.88
Typical copayment $33.54 (range $14.74 – $44.22)
Most-billed visit code 99204
Established Patient
$73.28 typical visit price
range $19.32 – $144.79
Typical copayment $18.32 (range $4.83 – $36.19)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.76/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality85.17
Promoting Interoperability100
Improvement Activities40
Cost74.03

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.

STEPHANIE MAREE DAY CNM
Advanced Practice Midwife
545 NE 47TH AVE STE 102
PORTLAND, OR 97213
Multnomah County (503) 215-6262
MAGGIE EILEEN HAYES MD
Obstetrics & Gynecology
545 NE 47TH AVE STE 102
PORTLAND, OR 97213
Multnomah County (503) 215-6262
MRS. NOELLE SHIPMAN LEFITZ CNM
Advanced Practice Midwife
545 NE 47TH AVE STE 102
PORTLAND, OR 97213
Multnomah County (503) 215-6262
DR. ANNE MEREDITH KNUDSEN MD
Obstetrics & Gynecology
545 NE 47TH AVE STE 102
PORTLAND, OR 97213
Multnomah County (503) 215-6262
AMANDA NAMBIAR CNM, WHNP
Advanced Practice Midwife
545 NE 47TH AVE STE 102
PORTLAND, OR 97213
Multnomah County (925) 324-2145

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 Gabrielle Alexander's NPI number?

The NPI number for Gabrielle Alexander is 1124480413. It was assigned to this individual provider in the NPPES registry on March 24, 2016.

Where is Gabrielle Alexander located?

Gabrielle Alexander practices at 545 NE 47th Ave Ste 102, Portland, OR 97213. The listed phone number is (503) 215-6262.

What is Gabrielle Alexander's specialty?

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

Is Gabrielle Alexander enrolled in Medicare?

Yes. Gabrielle Alexander 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.

Which organizations bill Medicare for Gabrielle Alexander's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gabrielle Alexander reassigns Medicare benefits to 4 organizations: Providence Health & Services - Oregon (Portland, OR), Providence Health & Services - Oregon (Portland, OR), Providence Health & Services Oregon (Milwaukie, OR) and Providence Health & Services - Oregon (Portland, OR). Each 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 Gabrielle Alexander's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gabrielle Alexander accept?

Health plans from Providence Health Plan list Gabrielle Alexander 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.

Is Gabrielle Alexander affiliated with any hospitals?

According to CMS data, Gabrielle Alexander is affiliated with Providence Portland Medical Center.

When was this NPI record last updated?

The NPPES record for Gabrielle Alexander was last updated on October 2, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.