1. Home
  2. Directory
  3. Virginia
  4. Norfolk
  5. Counselor
  6. NPI Profile

APPENDIX INC
NPI 1043817760
Counselor - Mental Health in Norfolk, VA

Active since October 06, 2020
999 WATERSIDE DR STE 2525, NORFOLK, VA 23510(757) 664-9402 Get Directions Write a Review

NPPES record last updated: May 31, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 30, 2020, Oct 6, 2020 (2 updates tracked since 2020).

About Appendix Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

APPENDIX INC (NPI 1043817760) is a healthcare organization registered as a mental health in Norfolk, Virginia and active in the NPI registry since October 2020. The organization maintains a secondary practice location in Gainesville and lists Berthina Mcgill, Owner, as its authorized official.

NPPES Registry Identity

NPI1043817760
Entity TypeOrganization
Primary Taxonomy101YM0800X
Legal Business NameAPPENDIX INC
Location Address999 WATERSIDE DR STE 2525Norfolk, VA 23510-3316
Mailing Address5136 E Princess Anne RdNorfolk, VA 23502-1749 · (757) 664-9402
Phone(757) 664-9402
Organization SubpartNo
Authorized OfficialBerthina McgillOwner · (757) 985-9688
Enumeration DateOctober 6, 2020
Last NPPES UpdateMay 31, 20242 updates tracked since enumeration
NPPES CertifiedMay 31, 2024
✔ NPI 1043817760 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
999 WATERSIDE DR STE 2525, Norfolk, VA 23510
Open in Google Maps ↗

Secondary Practice Location 1

Location 13620 NW 43rd St Ste AGainesville, FL 32606-8100 · Phone (352) 470-0601

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company).Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Appendix Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Appendix Inc, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Berthina Mcgill, MA, LMHC
Mental Health Counselor
NPI 1679849277
999 WATERSIDE DR STE 2525
Norfolk, VA 23510
(757) 664-9402
✔ PECOSSame address
Corinne Riley, PMHNP
Nurse Practitioner
NPI 1447014386
103 SE 3RD ST
Trenton, FL 32693
(352) 577-5252
✔ PECOS✔ Accepts Medicare625 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Appendix Inc's NPI number?

The NPI number for Appendix Inc is 1043817760. It was assigned to this organization in the NPPES registry on October 6, 2020.

Where is Appendix Inc located?

Appendix Inc is located at 999 Waterside Dr Ste 2525, Norfolk, VA 23510. The listed phone number is (757) 664-9402.

What is Appendix Inc's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Appendix Inc enrolled in Medicare?

Yes. Appendix Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Appendix Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Appendix Inc, in Mental Health Counselor and Nurse Practitioner. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Appendix Inc accept?

Health plans from Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Appendix Inc as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Appendix Inc was last updated on May 31, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.