Karen Castellon, MSN-FNP
NPI 1922765395 · Family Nurse Practitioner · Brownsville, TX
Karen Castellon, MSN-FNP is a Family Nurse Practitioner provider in Brownsville, TX (NPI 1922765395).
Provider details
- NPI number
- 1922765395
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN-FNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 1040647 (TX)
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
4 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
- 2021-11-20
- Last updated
- 2021-11-20
- Certified
- 2021-11-20
Frequently asked questions
- What is Karen Castellon's NPI number?
- Karen Castellon's National Provider Identifier (NPI) is 1922765395, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Castellon's specialty?
- Karen Castellon is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Castellon located?
- Karen Castellon's practice location on file with NPPES is 191 E Price Rd, Brownsville, TX 78521-3527.
- What is Karen Castellon's phone number?
- The practice phone number listed in the NPPES registry for Karen Castellon is (956) 548-7400.
- Is Karen Castellon's NPI active?
- Yes — Karen Castellon's NPI (1922765395) is active in the NPPES registry as of the last update on 2021-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.