What is Mary Mayfield's NPI number?

Mary Mayfield's National Provider Identifier (NPI) is 1558775643, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mary Mayfield's specialty?

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

Where is Mary Mayfield located?

Mary Mayfield's practice location on file with NPPES is 5305 River Rd N Ste B, Keizer, OR 97303-5324.

What is Mary Mayfield's phone number?

The practice phone number listed in the NPPES registry for Mary Mayfield is (503) 389-5360.

Does Mary Mayfield accept Medicare?

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

Is Mary Mayfield's NPI active?

Yes — Mary Mayfield's NPI (1558775643) is active in the NPPES registry as of the last update on 2021-10-08.

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Mary Mayfield, LCSW

NPI 1558775643 · Clinical Social Worker · Keizer, OR

Mary Mayfield, LCSW is a Clinical Social Worker provider in Keizer, OR (NPI 1558775643).

Provider details

NPI number: 1558775643
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Credential: LCSW
Sex: Female
Sole proprietor: No
License: L12206 (OR)

Practice location

5305 River Rd N Ste B

Keizer, OR 97303-5324

Phone: (503) 389-5360

Street-level locationGet directions

More OR providers

Mailing address

Po Box 14282

Portland, OR 97293-0282

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense L12206 (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

Detailed profile(76/100 index)

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

Registry tenure38% of score
12 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: 2014-06-17
Last updated: 2021-10-08
Certified: 2021-10-07

Frequently asked questions

What is Mary Mayfield's NPI number?: Mary Mayfield's National Provider Identifier (NPI) is 1558775643, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Mary Mayfield's specialty?: Mary Mayfield is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
Where is Mary Mayfield located?: Mary Mayfield's practice location on file with NPPES is 5305 River Rd N Ste B, Keizer, OR 97303-5324.
What is Mary Mayfield's phone number?: The practice phone number listed in the NPPES registry for Mary Mayfield is (503) 389-5360.
Does Mary Mayfield accept Medicare?: Mary Mayfield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Mary Mayfield's NPI active?: Yes — Mary Mayfield's NPI (1558775643) is active in the NPPES registry as of the last update on 2021-10-08.

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