What is Massey Lewallen's NPI number?

Massey Lewallen's National Provider Identifier (NPI) is 1811792641, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Massey Lewallen's specialty?

Massey Lewallen is listed in the NPPES registry with a primary specialty of Emergency Registered Nurse (Nursing Service Providers).

Where is Massey Lewallen located?

Massey Lewallen's practice location on file with NPPES is 903 N Maple Rd, Calumet, OK 73014-8428.

What is Massey Lewallen's phone number?

The practice phone number listed in the NPPES registry for Massey Lewallen is (405) 320-8890.

Is Massey Lewallen's NPI active?

Yes — Massey Lewallen's NPI (1811792641) is active in the NPPES registry as of the last update on 2025-02-17.

IndividualActive

Massey Lewallen

NPI 1811792641 · Emergency Registered Nurse · Calumet, OK

Massey Lewallen is a Emergency Registered Nurse provider in Calumet, OK (NPI 1811792641).

Provider details

NPI number: 1811792641
Entity type: Individual
Primary specialty: Emergency Registered NurseNursing Service Providers
Sex: Female
Sole proprietor: Yes
License: 204252 (OK)

Specialties & taxonomies

Emergency Registered NursePrimary163WE0003XLicense 204252 (OK)
Nursing Service Providers

Profile Score

Established profile(55/100 index)

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

Registry tenure38% of score
1 yr 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.

Practice location

903 N Maple Rd

Calumet, OK 73014-8428

Phone: (405) 320-8890

Street-level locationGet directions

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Mailing address