Teresa Massillon, IBCLC
NPI 1285985622 · Lactation Consultant (Non-RN) · San Francisco, CA
Teresa Massillon, IBCLC is a Lactation Consultant (Non-RN) provider in San Francisco, CA (NPI 1285985622).
Provider details
- NPI number
- 1285985622
- Entity type
- Individual
- Primary specialty
- Lactation Consultant (Non-RN)Other Service Providers
- Credential
- IBCLC
- Sex
- Female
- Sole proprietor
- Yes
- License
- 10921004 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
- 2012-09-25
- Last updated
- 2012-09-25
Frequently asked questions
- What is Teresa Massillon's NPI number?
- Teresa Massillon's National Provider Identifier (NPI) is 1285985622, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Teresa Massillon's specialty?
- Teresa Massillon is listed in the NPPES registry with a primary specialty of Lactation Consultant (Non-RN) (Other Service Providers).
- Where is Teresa Massillon located?
- Teresa Massillon's practice location on file with NPPES is 1530 Dolores St, San Francisco, CA 94110-4935.
- What is Teresa Massillon's phone number?
- The practice phone number listed in the NPPES registry for Teresa Massillon is (415) 821-2298.
- Is Teresa Massillon's NPI active?
- Yes — Teresa Massillon's NPI (1285985622) is active in the NPPES registry as of the last update on 2012-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.