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MARK MAHAMOUD GABRIEL DC
NPI 1538457585
Chiropractor in Portland, OR

Active since July 12, 2011Accepts Medicare Assignment
1359 NE 35TH AVE., PORTLAND, OR 97232(503) 389-5545 Get Directions Write a Review

NPPES record last updated: September 26, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mark Mahamoud Gabriel Dc NPPES

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

MARK MAHAMOUD GABRIEL DC (NPI 1538457585) is an individual chiropractor in Portland, Oregon, licensed in Oregon (5070) and active in the NPI registry since July 2011. He is a graduate of Other (2011).

NPPES Registry Identity

NPI1538457585
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameMARK MAHAMOUD GABRIELCredential: DC
Location Address1359 NE 35TH AVE.Portland, OR 97232
Mailing Address1359 Ne 35th Ave.Portland, OR 97232 · (503) 389-5545
Phone(503) 389-5545
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateJuly 12, 2011
Last NPPES UpdateSeptember 26, 2014
✔ NPI 1538457585 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
Licenses✔ Licensed in OR · 5070✔ Licensed in FL · CH10350
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
Also ListedSpecialist/Technologist, Other · ElectroneurodiagnosticTaxonomy 246ZE0600X
1359 NE 35TH AVE., Portland, OR 97232
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, PacificSource Health Plans, Regence BlueCross BlueShield of Oregon.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

Mark Mahamoud Gabriel Dc 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 ID2668742065
PECOS Enrollment IDI20170719001331

Medicare Billing Reassignments

2

Medicare enrollment records show Mark Gabriel reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Advanced Wellness Center LLC
1.2 mi
Chiropractor
3150 SE BELMONT ST
Portland, OR 97214
  • Reassigned Medicare billing, Oregon enrollment
  • 4 clinicians in this Medicare group
NPI 1245632447 (503) 389-5545
Renovo Chiropractic LLC
78 mi
Clinic/Center
1140 NE HIGHWAY 101
Lincoln City, OR 97367
  • Reassigned Medicare billing, Oregon enrollment
  • 3 clinicians in this Medicare group
NPI 1710442751 (541) 961-8116

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 Mark Gabriel's NPI number?

The NPI number for Mark Gabriel is 1538457585. It was assigned to this individual provider in the NPPES registry on July 12, 2011.

Where is Mark Gabriel located?

Mark Gabriel practices at 1359 NE 35th Ave., Portland, OR 97232. The listed phone number is (503) 389-5545.

What is Mark Gabriel's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Mark Gabriel enrolled in Medicare?

Yes. Mark Gabriel 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 Mark Gabriel's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Gabriel reassigns Medicare benefits to 2 organizations: Advanced Wellness Center LLC (Portland, OR) and Renovo Chiropractic LLC (Lincoln City, 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 Mark Gabriel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Gabriel accept?

Health plans from BridgeSpan Health Company, PacificSource Health Plans and Regence BlueCross BlueShield of Oregon list Mark Gabriel 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 Mark Gabriel was last updated on September 26, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.