IndividualActive
Mary Crosby, RN
NPI 1821166935 · Ambulatory Care Registered Nurse · Phoenix, AZ
Mary Crosby, RN is a Ambulatory Care Registered Nurse provider in Phoenix, AZ (NPI 1821166935).
Provider details
- NPI number
- 1821166935
- Entity type
- Individual
- Primary specialty
- Ambulatory Care Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- No
- License
- RN138791 (AZ)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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.
Practice location
4212 N 16th St
Phoenix, AZ 85016-5319
Phone: (602) 263-1511
Fax: (602) 263-1619
Street-level locationGet directions
Mailing address
Po Box 31001-0698
Pasadena, CA 91110-0698
Registry dates
- Enumerated
- 2006-11-30
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Crosby's NPI number?
- Mary Crosby's National Provider Identifier (NPI) is 1821166935, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Crosby's specialty?
- Mary Crosby is listed in the NPPES registry with a primary specialty of Ambulatory Care Registered Nurse (Nursing Service Providers).
- Where is Mary Crosby located?
- Mary Crosby's practice location on file with NPPES is 4212 N 16th St, Phoenix, AZ 85016-5319.
- What is Mary Crosby's phone number?
- The practice phone number listed in the NPPES registry for Mary Crosby is (602) 263-1511.
- Is Mary Crosby's NPI active?
- Yes — Mary Crosby's NPI (1821166935) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.