Holly Margerum
NPI 1770340218 · Family Nurse Practitioner · Davidsonville, MD
Holly Margerum is a Family Nurse Practitioner provider in Davidsonville, MD (NPI 1770340218).
Provider details
- NPI number
- 1770340218
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- R179046 (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
2 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
- 2024-03-01
- Last updated
- 2025-02-21
- Certified
- 2025-02-21
Frequently asked questions
- What is Holly Margerum's NPI number?
- Holly Margerum's National Provider Identifier (NPI) is 1770340218, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Holly Margerum's specialty?
- Holly Margerum is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Holly Margerum located?
- Holly Margerum's practice location on file with NPPES is 3439 Merrimac Rd, Davidsonville, MD 21035-1356.
- What is Holly Margerum's phone number?
- The practice phone number listed in the NPPES registry for Holly Margerum is (240) 417-2713.
- Is Holly Margerum's NPI active?
- Yes — Holly Margerum's NPI (1770340218) is active in the NPPES registry as of the last update on 2025-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.