Clarissa Darr, RN
NPI 1174653901 · Psychiatric/Mental Health Nurse Practitioner · Frederick, MD
Clarissa Darr, RN is a Psychiatric/Mental Health Nurse Practitioner provider in Frederick, MD (NPI 1174653901).
Provider details
- NPI number
- 1174653901
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- No
- License
- RN37188 (DC)
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
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
- 2007-03-07
- Last updated
- 2013-07-09
Frequently asked questions
- What is Clarissa Darr's NPI number?
- Clarissa Darr's National Provider Identifier (NPI) is 1174653901, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clarissa Darr's specialty?
- Clarissa Darr is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Clarissa Darr located?
- Clarissa Darr's practice location on file with NPPES is 1434 Porter St, Frederick, MD 21702-9254.
- What is Clarissa Darr's phone number?
- The practice phone number listed in the NPPES registry for Clarissa Darr is (301) 619-8096.
- Is Clarissa Darr's NPI active?
- Yes — Clarissa Darr's NPI (1174653901) is active in the NPPES registry as of the last update on 2013-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.