DR. MARIA C. LEIVA M.D.
NPI 1790766244
Obstetrics & Gynecology in Portland, OR
About Dr. Maria C. Leiva M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARIA C. LEIVA M.D. (NPI 1790766244) is an individual obstetrics & gynecology provider in Portland, Oregon, licensed in Oregon (MD 25402) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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 (PECOS)
Dr. Maria C. Leiva M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Maria Leiva reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97225
- Reassigned Medicare billing, Oregon enrollment
- 1,501 clinicians in this Medicare group
Portland, OR 97225
- Reassigned Medicare billing, Oregon enrollment
- 753 clinicians in this Medicare group
Portland, OR 97239
- Reassigned Medicare billing, Oregon enrollment
- 2,212 clinicians in this Medicare group
Portland, OR 97213
- Reassigned Medicare billing, Oregon enrollment
- 676 clinicians in this Medicare group
Hillsboro, OR 97123
- Reassigned Medicare billing, Oregon enrollment
- 691 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97225 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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.
PORTLAND, OR 97225
PORTLAND, OR 97225
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 Maria Leiva's NPI number?
The NPI number for Maria Leiva is 1790766244. It was assigned to this individual provider in the NPPES registry on November 10, 2005.
Where is Maria Leiva located?
Maria Leiva practices at 9555 SW Barnes Rd Suite 100, Portland, OR 97225. The listed phone number is (503) 292-3577.
What is Maria Leiva's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Maria Leiva enrolled in Medicare?
Yes. Maria Leiva is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Maria Leiva's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maria Leiva reassigns Medicare benefits to 5 organizations: Providence Health & Services - Oregon (Portland, OR), Providence Health & Services - Oregon (Portland, OR), University Professional Services (Portland, OR), Providence Health & Services - Oregon (Portland, OR) and Tuality Medical Group LLC (Hillsboro, 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 Maria Leiva's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Maria Leiva accept?
Health plans from Moda Health Plan, Inc., PacificSource Health Plans and Providence Health Plan list Maria Leiva 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 Maria Leiva was last updated on March 19, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Maria C. Leiva, M.D. · NPI 1790766244
Obstetrics & Gynecology physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since November 10, 2005.
## Identity
- **NPI:** 1790766244 (Entity type: Individual)
- **Enumerated:** November 10, 2005
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** MD 25402 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 9555 SW BARNES RD, SUITE 100, Portland, OR 97225-6663
- **Phone:** (503) 292-3577 · **Fax:** (503) 691-3615
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Providence Health & Services - Oregon (NPI 1033299458, Portland, OR); Providence Health & Services - Oregon (NPI 1235259532, Portland, OR); University Professional Services (NPI 1376709535, Portland, OR); Providence Health & Services - Oregon (NPI 1003991845, Portland, OR); Tuality Medical Group LLC (NPI 1639690704, Hillsboro, OR) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 19, 2021
- **Other identifiers:** Medicaid 022879 (OR)
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Source: [NPI Profile](https://npiprofile.com/npi/1790766244) · Data from the CMS NPPES public registry.