IndividualActive
Lillian Mas Rivera, M.T.
NPI 1942461355 · Clinical Medical Laboratory · Carolina, PR
Lillian Mas Rivera, M.T. is a Clinical Medical Laboratory provider in Carolina, PR (NPI 1942461355).
Provider details
- NPI number
- 1942461355
- Entity type
- Individual
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Credential
- M.T.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 699 (PR)
Specialties & taxonomies
Laboratories
Profile Score
Detailed profile(87/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
237 Ave San Marcos
Ext,el Comandante
Carolina, PR 00982-3616
Phone: (787) 757-9588
Fax: (787) 757-9588
Street-level locationGet directions
Mailing address
675 Calle Princesa
Carolina, PR 00982-3664
Registry dates
- Enumerated
- 2008-06-18
- Last updated
- 2008-06-18
Frequently asked questions
- What is Lillian Mas Rivera's NPI number?
- Lillian Mas Rivera's National Provider Identifier (NPI) is 1942461355, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lillian Mas Rivera's specialty?
- Lillian Mas Rivera is listed in the NPPES registry with a primary specialty of Clinical Medical Laboratory (Laboratories).
- Where is Lillian Mas Rivera located?
- Lillian Mas Rivera's practice location on file with NPPES is 237 Ave San Marcos, Carolina, PR 00982-3616.
- What is Lillian Mas Rivera's phone number?
- The practice phone number listed in the NPPES registry for Lillian Mas Rivera is (787) 757-9588.
- Is Lillian Mas Rivera's NPI active?
- Yes — Lillian Mas Rivera's NPI (1942461355) is active in the NPPES registry as of the last update on 2008-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.