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© 2026 NPI Telehealth

US Registry Operational
CMS Source

Informational purposes only — not medical advice. Always consult a professional. Data updated weekly. Read full disclaimer.

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Online Doctors in CASTLETON, NY | Telehealth & Virtual Care | NPI Telehealth | NPI Telehealth
LOCAL HEALTHCARE DIRECTORY 2026

DOCTORS IN
CASTLETON.

Find and book verified care in CASTLETON, NY. Access NPI credentials sourced from federal records, patient ratings, and virtual care availability.

Data refreshed: April 12, 2026•Source: CMS NPPES

PROVIDERS

Active medical practitioners in CASTLETON jurisdiction.

3 ENTRIES FOUND
NPI: 1831401983
VIRTUAL ACTIVE

MARY P SHIERLY, PA

PA

NPI DATA 2026
CASTLETON, NY
OTHER (2010)
16+ Years Exp.
ACCESS PROFILE
NPI: 1801421060
VIRTUAL ACTIVE

Elizabeth Teresa Jensen, NP

NP

NPI DATA 2026
Castleton, NY
OFFICIAL REGISTRY DATA
6+ Years Exp.
ACCESS PROFILE
NPI: 1447232855
VIRTUAL ACTIVE

Michael Allen Lettrick, MD

MD

NPI DATA 2026
Castleton, NY
Albany Medical College (1990)
21+ Years Exp.
ACCESS PROFILE

Specialties in CASTLETON

Family MedicinesNurse PractitionersPhysician Assistants

Find Doctors in CASTLETON

Looking for verified medical care in CASTLETON? Choosing a new doctor is a critical decision. Whether you need a routine check-up or specialized treatment, we provide the tools to compare professionals based on federal registry data.

Our directory only displays providers who are actively practicing in CASTLETON, ensuring you receive current and accurate local information.

Institutional Data Integrity

Every provider on NPI Telehealth is sourced from the National Plan and Provider Enumeration System (NPPES). We display data from licensed, active professionals in the federal registry.

NPI-REGISTERED PROVIDERS
REAL-TIME REGISTRY UPDATES