Sandra Mertz, RN, IBCLC
NPI 1033242862 · Lactation Consultant (Registered Nurse) · Havre De Grace, MD
Sandra Mertz, RN, IBCLC is a Lactation Consultant (Registered Nurse) provider in Havre De Grace, MD (NPI 1033242862).
Provider details
- NPI number
- 1033242862
- Entity type
- Individual
- Primary specialty
- Lactation Consultant (Registered Nurse)Nursing Service Providers
- Credential
- RN, IBCLC
- Sex
- Female
- Sole proprietor
- Yes
- License
- R198259 (MD)
Specialties & taxonomies
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
- 2007-03-13
- Last updated
- 2012-07-30
Frequently asked questions
- What is Sandra Mertz's NPI number?
- Sandra Mertz's National Provider Identifier (NPI) is 1033242862, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandra Mertz's specialty?
- Sandra Mertz is listed in the NPPES registry with a primary specialty of Lactation Consultant (Registered Nurse) (Nursing Service Providers).
- Where is Sandra Mertz located?
- Sandra Mertz's practice location on file with NPPES is 533 Majestic Prince Circle, Havre De Grace, MD 21078-2795.
- What is Sandra Mertz's phone number?
- The practice phone number listed in the NPPES registry for Sandra Mertz is (443) 668-4377.
- Is Sandra Mertz's NPI active?
- Yes — Sandra Mertz's NPI (1033242862) is active in the NPPES registry as of the last update on 2012-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.