What is Grace Mavromatis's NPI number?

Grace Mavromatis's National Provider Identifier (NPI) is 1013449271, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Grace Mavromatis's specialty?

Grace Mavromatis is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).

Where is Grace Mavromatis located?

Grace Mavromatis's practice location on file with NPPES is 5441 S Macadam Ave # 5450, Portland, OR 97239-6106.

What is Grace Mavromatis's phone number?

The practice phone number listed in the NPPES registry for Grace Mavromatis is (541) 900-4285.

Does Grace Mavromatis accept Medicare?

Grace Mavromatis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Grace Mavromatis's NPI active?

Yes — Grace Mavromatis's NPI (1013449271) is active in the NPPES registry as of the last update on 2026-04-16.

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Grace Mavromatis

NPI 1013449271 · Clinical Social Worker · Portland, OR

Grace Mavromatis is a Clinical Social Worker provider in Portland, OR (NPI 1013449271).

Provider details

NPI number: 1013449271
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No
License: L10996 (OR)

Practice location

5441 S Macadam Ave # 5450

Portland, OR 97239-6106

Phone: (541) 900-4285

Approximate (ZIP-level) locationGet directions

More OR providers

Mailing address

5441 S Macadam Ave # 5450

Portland, OR 97239-6106

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense L10996 (OR)
Behavioral Health & Social Service Providers

Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(71/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
9 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2017-03-28
Last updated: 2026-04-16
Certified: 2026-04-16

Frequently asked questions

What is Grace Mavromatis's NPI number?: Grace Mavromatis's National Provider Identifier (NPI) is 1013449271, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Grace Mavromatis's specialty?: Grace Mavromatis is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
Where is Grace Mavromatis located?: Grace Mavromatis's practice location on file with NPPES is 5441 S Macadam Ave # 5450, Portland, OR 97239-6106.
What is Grace Mavromatis's phone number?: The practice phone number listed in the NPPES registry for Grace Mavromatis is (541) 900-4285.
Does Grace Mavromatis accept Medicare?: Grace Mavromatis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Grace Mavromatis's NPI active?: Yes — Grace Mavromatis's NPI (1013449271) is active in the NPPES registry as of the last update on 2026-04-16.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions