Megan Joan Castillo
Megan J. Castillo
Last updated: Mar 24, 2017

Megan J. Castillo

  • Gender: Female
  • Sole propriator: No
  • NPI: 1447781091

Megan J. Castillo PA

Physician Assistant

She is located at 1111 Medical Plaza Drive Suite 250 in Spring, TX 77380. Her National Provider Identifier (NPI) number is 1447781091. Appointment can be made via the phone number (281) 296-8788. She is affiliated with 1 practices.

ACA Marketplace (Obamacare/HealthCare.gov) plan networks

Insurers selling ACA Marketplace (HealthCare.gov) plans list Megan J. Castillo as in-network for the following 2026 plans.

Health plans

Blue Cross and Blue Shield of Texas

Network data as of Jun 7, 2026, as reported by the insurer.

Show all 19 plans from Blue Cross and Blue Shield of Texas
Blue Cross and Blue Shield of Texas plans
Plan Plan type Network tier New patients
Blue Advantage Bronze HMO℠ 204 (27 plan variants) HMO · Expanded Bronze Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Bronze HMO℠ 301 (14 plan variants) HMO · Bronze Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Bronze HMO℠ Standard (27 plan variants) HMO · Expanded Bronze Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Gold HMO℠ 206 (27 plan variants) HMO · Gold Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Gold HMO℠ 603 (14 plan variants) HMO · Gold Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Gold HMO℠ Standard (27 plan variants) HMO · Gold Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Plus Bronze℠ 303 (27 plan variants) POS · Expanded Bronze Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Plus Bronze℠ 305 (27 plan variants) POS · Bronze Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Plus Bronze℠ Standard (27 plan variants) POS · Expanded Bronze Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Plus Gold℠ 203 (27 plan variants) POS · Gold Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Plus Gold℠ 803 (27 plan variants) POS · Gold Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Plus Gold℠ Standard (27 plan variants) POS · Gold Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Plus Silver℠ 202 (27 plan variants) POS · Silver Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Plus Silver℠ 605 (27 plan variants) POS · Silver Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Plus Silver℠ Standard (27 plan variants) POS · Silver Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Security HMO℠ 200 (27 plan variants) HMO · Catastrophic Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Silver HMO℠ 205 (27 plan variants) HMO · Silver Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Silver HMO℠ 801 (14 plan variants) HMO · Silver Blue Advantage HMO Accepting new patients at some locations
Blue Advantage Silver HMO℠ Standard (27 plan variants) HMO · Silver Blue Advantage HMO Accepting new patients at some locations

This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Megan J. Castillo is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.

Insurance information looks wrong? Let us know

Medicare Enrollment

Megan J. Castillo is enrolled to bill Medicare as a Practitioner - Physician Assistant .

Bills through: Gastroenterology Partners Of North Houston Pllc

Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.

Affiliated practices

Millennium Physicians - Respiratory & Sleep Disorders Specialists
1111 Medical Plaza Drive
The Woodlands, 77380 TX
(281) 296-8788

Looking for more Physician Assistants?

Out of the 19 physician assistants in this region, here are 10 randomly selected ones for you to explore.

Angela Miles
  • Gender: Female
  • Address: Suite 110 8850 Six Pines Drive Shenandoah, 77380, TX
Elena Novosad
  • Gender: Female
  • Address: 6830 Adrienne Arbor Drive Suite 520 Spring, 77389, TX
Michael Marquez
  • Gender: Male
  • Address: Suite 300 1441 Woodstead Court The Woodlands, 77380, TX
Rachel Lee Lagaly
  • Gender: Female
  • Address: 155 School Street Suite 210 Tomball, 77375, TX
Lynn L. Sargent
  • Gender: Female
  • Address: Suite 300 1441 Woodstead Court The Woodlands, 77380, TX
Jonas Gileguy Konan
  • Gender: Male
  • Address: Suite 200 1111 Medical Plaza Drive Shenandoah, 77380, TX
Jeana L. Garris
  • Gender: Female
  • Address: 1515 Holcombe Boulevard Houston, 77030, TX
Sarah Kristyne Heringer
  • Gender: Female
  • Address: Suite 150 17051 North Dallas Parkway Addison, 75001, TX
Nguyet Anh Nguyen
  • Gender: Female
  • Address: Suite 119 314 Sawdust Road The Woodlands, 77380, TX

Questions & Answers

Does Megan Joan Castillo have affiliation with practices?

Megan Joan Castillo is affiliated with Millennium Physicians - Respiratory & Sleep Disorders Specialists.

Where can you meet with Megan Joan Castillo?

Megan Joan Castillo's office is located at 1111 Medical Plaza Drive Suite 250 in Spring, TX 77380.

Does Megan Joan Castillo accept insurance?

Megan Joan Castillo is listed in-network for 19 ACA Marketplace (Obamacare/HealthCare.gov) plans from Blue Cross and Blue Shield of Texas. See the Marketplace plans section for details.