Diana Laura Castellanos, PA
Physician Assistant · West Hartford, CT
Diana Laura Castellanos, PA is a physician assistant with a practice address in West Hartford, Connecticut, and NPI 1811856198, issued on Jan 21, 2026. Check the license (Connecticut 7544, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana Laura Castellanos
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 7544 CT
Self-reported in NPPES; status is on the state search - Practice location
- 342 N Main St Ste 350, West Hartford, CT 06117
- Phone
- (860) 296-4022
- Enumerated
- Jan 21, 2026
- Record last updated
- Feb 27, 2026
- Fax
- (860) 772-0095
- Medicare enrollment
- Enrolled (PECOS I20260224001966); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2025
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,047 in Connecticut → Look up another NPI →
Also registered at 342 N Main St Ste 350
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Audrey Oweimrin, PA-CPhysician Assistant1053173427
- Joan Rishel, PA-CPhysician Assistant1194823575
- Samuel Werner, D.O.Family Medicine Physician1942735659
Verify Diana Laura Castellanos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 7544Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Prime Healthcare, PCWest Hartford, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana Laura Castellanos among 2,047 physician assistant records in Connecticut
Diana Laura Castellanos, PA is one of 2,047 physician assistant records with a practice address in Connecticut. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2026, is newer than 96% of them.
- NPI issued2026 · 96% of these records are older, 0% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2025 · median 2018 among the 1,338 with a school on file
- Record last updated2026 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
29 physician assistant records list a practice address in West Hartford
They are 29 of the 1,653 NPPES records with a practice address in West Hartford, and 2,047 physician assistant records in Connecticut.
All 2,047 in Connecticut → Every provider in West Hartford → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Stephanie Gort, PA-CWest Hartford, CT 061171043610462
- Alexa MonroeWest Hartford, CT 061171437081890
- Katthy Nguyen, PA-CWest Hartford, CT 061171295622322
- Audrey Oweimrin, PA-CWest Hartford, CT 061171053173427
- Joan Rishel, PA-CWest Hartford, CT 061171194823575
- Nicholas Rosage, PA-CWest Hartford, CT 061171326297458
- Anita Tran, PA-CWest Hartford, CT 061171629378443
- Trinh Tran, PA-CWest Hartford, CT 061171083992481
Common questions
What is Diana Laura Castellanos, PA's NPI number?
Diana Laura Castellanos, PA's National Provider Identifier (NPI) is 1811856198, issued on Jan 21, 2026. An NPI identifies a provider in billing; it is not a license.
Where is Diana Laura Castellanos, PA located?
The NPPES record lists a practice address at 342 N Main St Ste 350, West Hartford, CT, 06117. Phone: (860) 296-4022. Providers update this record themselves, so call before visiting.
How can I verify Diana Laura Castellanos, PA's license?
NPPES lists Connecticut license number 7544, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.