Mark Holladay, CRNP
NPI 1487809430 · Acute Care Nurse Practitioner · Salisbury, MD
Mark Holladay, CRNP is a Acute Care Nurse Practitioner provider in Salisbury, MD (NPI 1487809430).
Provider details
- NPI number
- 1487809430
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Male
- Sole proprietor
- Yes
- License
- 2259 (AL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Chiropractic Providers
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
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 13067 Brian Hill RdMadison, AL 35756-3330Phone: (256) 683-4117
Registry dates
- Enumerated
- 2008-11-18
- Last updated
- 2021-01-27
- Certified
- 2021-01-27
Frequently asked questions
- What is Mark Holladay's NPI number?
- Mark Holladay's National Provider Identifier (NPI) is 1487809430, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Holladay's specialty?
- Mark Holladay is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Holladay located?
- Mark Holladay's practice location on file with NPPES is 100 E Carroll St, Salisbury, MD 21801-5422.
- What is Mark Holladay's phone number?
- The practice phone number listed in the NPPES registry for Mark Holladay is (410) 546-6400.
- Is Mark Holladay's NPI active?
- Yes — Mark Holladay's NPI (1487809430) is active in the NPPES registry as of the last update on 2021-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.