Sonja Massey, R.N., I.B.C.L.C.
NPI 1447311147 · Lactation Consultant (Registered Nurse) · Pacific Grove, CA
Sonja Massey, R.N., I.B.C.L.C. is a Lactation Consultant (Registered Nurse) provider in Pacific Grove, CA (NPI 1447311147).
Provider details
- NPI number
- 1447311147
- Entity type
- Individual
- Primary specialty
- Lactation Consultant (Registered Nurse)Nursing Service Providers
- Credential
- R.N., I.B.C.L.C.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 405202 (CA)
Specialties & taxonomies
Nursing Service Providers
Nursing Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-12-13
- Last updated
- 2010-12-09
Frequently asked questions
- What is Sonja Massey's NPI number?
- Sonja Massey's National Provider Identifier (NPI) is 1447311147, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonja Massey's specialty?
- Sonja Massey is listed in the NPPES registry with a primary specialty of Lactation Consultant (Registered Nurse) (Nursing Service Providers).
- Where is Sonja Massey located?
- Sonja Massey's practice location on file with NPPES is 529 Central Ave, Pacific Grove, CA 93950-2732.
- What is Sonja Massey's phone number?
- The practice phone number listed in the NPPES registry for Sonja Massey is (831) 402-1666.
- Is Sonja Massey's NPI active?
- Yes — Sonja Massey's NPI (1447311147) is active in the NPPES registry as of the last update on 2010-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.