Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Krystal Horst Register, RD, LDN

Registered Dietitian in Annapolis, MD · enumerated 2006 · practices at Attunement Chiropractic LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1508957978

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Registry record

Entity type Individual (Type 1)

Name Krystal Horst Register

Credential RD, LDN

Sex Female

Practice address 203 Ridgely Avenue, Annapolis, MD, 21401

Phone (443) 433-0462

Enumeration date Sep 28, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License DX2535 (MD) Primary

RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Krystal Register?

The National Provider Identifier (NPI) for Krystal Register is 1508957978, a Type 1 (individual) record in the CMS NPPES registry.

Where does Krystal Register practice?

The practice location on file with NPPES is in Annapolis, MD. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Attunement Chiropractic LLC Chiropractor · Annapolis, MD NPI 1437658754

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.