DR. MARIANO PORTO JR. MD
NPI 1396032934
Psychiatry & Neurology - Neurology in Scottsdale, AZ
About Dr. Mariano Porto Jr. Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARIANO PORTO JR. MD (NPI 1396032934) is an individual neurology provider in Scottsdale, Arizona, licensed in Wisconsin (4338-320) and active in the NPI registry since July 2011. He is enrolled in Medicare PECOS, is affiliated with University Of Iowa Health Care Medical Center Down, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Other Identifiers 1
Accepted 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. Mariano Porto Jr. 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.
Medicare Billing Reassignments
7Medicare enrollment records show Mariano Porto reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Scottsdale, AZ 85258
- Reassigned Medicare billing, Arizona enrollment
- 6 clinicians in this Medicare group
Englewood, CO 80113
- Reassigned Medicare billing, Colorado enrollment
- 43 clinicians in this Medicare group
Greenwood Village, CO 80111
- Reassigned Medicare billing, Colorado enrollment
- 110 clinicians in this Medicare group
Medford, OR 97504
- Reassigned Medicare billing, Oregon enrollment
- 353 clinicians in this Medicare group
West Burlington, IA 52655
- Reassigned Medicare billing, Colorado enrollment
- 14 clinicians in this Medicare group
Iowa City, IA 52242
- Reassigned Medicare billing, Colorado enrollment
- 14 clinicians in this Medicare group
West Allis, WI 53227
- Reassigned Medicare billing, Wisconsin enrollment
- 4,609 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Iowa Health Care Medical Center Down
Acute Care Hospitals · Iowa City, IAAsante Three Rivers Medical Center
Acute Care Hospitals · Grants Pass, ORAsante Rogue Regional Medical Center
Acute Care Hospitals · Medford, ORSt David's South Austin Medical Center
Acute Care Hospitals · Austin, TXWyoming Medical Center
Acute Care Hospitals · Casper, WYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85258 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Mariano Porto's NPI number?
The NPI number for Mariano Porto is 1396032934. It was assigned to this individual provider in the NPPES registry on July 4, 2011.
Where is Mariano Porto located?
Mariano Porto practices at 9746 N 90th Pl Ste 203, Scottsdale, AZ 85258. The listed phone number is (480) 614-0707.
What is Mariano Porto's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Mariano Porto enrolled in Medicare?
Yes. Mariano Porto 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 Mariano Porto's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mariano Porto reassigns Medicare benefits to 7 organizations: Four Peaks Neurology, P.C. (Scottsdale, AZ), Carepoint Inpatient Blue Sky Neurology PLLC (Englewood, CO), Blue Sky Telehealth, LLC (Greenwood Village, CO), Asante Physician Partners (Medford, OR), Southeast Iowa Regional Medical Center, Inc. (West Burlington, IA) and 2 more organizations, listed in the Medicare section above. 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 Mariano Porto's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mariano Porto accept?
Health plans from Aspirus Health Plan, Blue Cross and Blue Shield of Texas, CareSource (Common Ground Healthcare), Sanford Health Plan and Wellmark Health Plan of Iowa, Inc. list Mariano Porto 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 Mariano Porto affiliated with any hospitals?
According to CMS data, Mariano Porto is affiliated with University Of Iowa Health Care Medical Center Down, Asante Three Rivers Medical Center, Asante Rogue Regional Medical Center, St David's South Austin Medical Center and Wyoming Medical Center.
When was this NPI record last updated?
The NPPES record for Mariano Porto was last updated on November 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Dr. Mariano Porto Jr., MD · NPI 1396032934
Neurology physician in Scottsdale, Arizona. Individual provider, active in the CMS NPPES registry since July 4, 2011.
## Identity
- **NPI:** 1396032934 (Entity type: Individual)
- **Enumerated:** July 4, 2011
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** 4338-320 (Wisconsin)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 9746 N 90TH PL STE 203, Scottsdale, AZ 85258-5085
- **Phone:** (480) 614-0707 · **Fax:** (480) 614-0353
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Four Peaks Neurology, P.C. (NPI 1295869964, Scottsdale, AZ); Carepoint Inpatient Blue Sky Neurology PLLC (NPI 1568833713, Englewood, CO); Blue Sky Telehealth, LLC (NPI 1649886458, Greenwood Village, CO); Asante Physician Partners (NPI 1922381326, Medford, OR); Southeast Iowa Regional Medical Center, Inc. (NPI 1164433884, West Burlington, IA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** November 10, 2025
- **Other identifiers:** Medicaid 100366047 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1396032934) · Data from the CMS NPPES public registry.