Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1881539666 Individual Practitioner Female Practitioner

Dr. Brooke Ashton Castillo , OD

Optometrist • Fremont, MI

Professional Overview & Biography Verified Profile Summary

Dr. Brooke Castillo, OD is a registered healthcare professional specializing in Optometrist in Fremont, MI. Practice services are available at 1231 W MAIN ST under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

1231 W Main St

Fremont, MI 494121484

Telephone 2319242700
Associated Practice Facility / Clinic
🏢 E.c. One, Pllc Facility NPI 1639137508

Specialty Benchmarks & Practice Insights

Comparative analytics for Optometrist in Fremont, MI

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 32.8 Yrs
State Avg: 21.1 Yrs
Regional Practice Density
8 Specialists

Practicing in Fremont, MI (2032 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2026-06-16
Optometrist Primary Specialty

NUCC Taxonomy Code: 152W00000X

State License MI 4901005978

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

2 Associated Practitioners
NPI 1174518617

Doctor of Optometry

NPI 1184676017

Doctor of Optometry

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

9 Historical Events
📍
Updated Practice Location June 16, 2026

Registered at 1231 W MAIN ST, FREMONT, MI 494121484 (Tel: 2319242700)

👤
Provider Name / Credentials Updated June 16, 2026

Recorded as BROOKE CASTILLO, OD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) June 16, 2026

Optometrist (License #4901005978 in MI)

NPI Profile Active April 20, 2026

NPI status registered as active in NPPES database

📍
Updated Practice Location April 20, 2026

Registered at 120 PALUSTER ST, CADILLAC, MI 496012532 (Tel: 2317757341)

📍
Updated Business Mailing Address April 20, 2026

Registered at 307 MAPLEBROOKE LN, CADILLAC, MI 496018763

👤
Provider Name / Credentials Updated April 20, 2026

Recorded as BROOKE CASTILLO

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 20, 2026

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration April 20, 2026

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1881539666
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 20, 2026
Last Update: June 16, 2026
Sole Proprietor: No

Mailing Address

307 Maplebrooke Ln

Cadillac, MI 496018763

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.