Marie Lo
NPI 1639540982 · Psychiatric/Mental Health Nurse Practitioner · Hanover, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marie Lo is a Psychiatric/Mental Health Nurse Practitioner provider in Hanover, MD (NPI 1639540982).
Provider details
- NPI number
- 1639540982
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- R247223 (MD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
- 2015-10-13
- Last updated
- 2026-05-19
- Certified
- 2026-05-19
Frequently asked questions
- What is Marie Lo's NPI number?
- Marie Lo's National Provider Identifier (NPI) is 1639540982, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marie Lo's specialty?
- Marie Lo is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marie Lo located?
- Marie Lo's practice location on file with NPPES is 7661 Arundel Mills Blvd # 1039, Hanover, MD 21076-1305.
- What is Marie Lo's phone number?
- The practice phone number listed in the NPPES registry for Marie Lo is (201) 238-3796.
- Does Marie Lo accept Medicare?
- Marie Lo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marie Lo's NPI active?
- Yes — Marie Lo's NPI (1639540982) is active in the NPPES registry as of the last update on 2026-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.