Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Marjorie Mackenzie, DC

Rehabilitation Chiropractor in Dover, DE · enumerated 2007.

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

National Provider Identifier

1790835916

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Marjorie Mackenzie

Credential DC

Sex Female

Practice address 200 Banning St, Suite 350, Dover, DE, 19904

Phone (302) 730-8848

Fax (302) 730-8846

Enumeration date Jan 11, 2007

Last updated in NPPES Jun 28, 2011

Taxonomy & licenses

111NR0400X Rehabilitation Chiropractor Chiropractic Providers · License F1-0000601 (DE) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
113058	Other	DE	COVENTRY
298136	Other	DE	MAMSI
386606CHI	Other	DE	BLUE CROSS & BLUE SHIELD
2257287000	Other	DE	AMERIHEALTH HMO
648927	Other	DE	UNITED HEALTH CARE
1577494	Other	DE	AMERIHEALTH PPO
3988000	Other	DE	CIGNA

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

How do I verify Marjorie Mackenzie's NPI record?

Cross-check NPI 1790835916 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1790835916 active?

Yes, as of the latest NPPES snapshot, NPI 1790835916 is active (record last updated 2011-06-28).

Other providers at this practice address

Browse all →

Donald Suh Urology Physician · Dover, DE NPI 1558364190 Urology Associates of Delaware P.A. Urology Physician · Dover, DE NPI 1396730974 Michael Zaragoza Urology Physician · Dover, DE NPI 1205821881 Joohyong Kim Urology Physician · Dover, DE NPI 1356336937 Christopher Vallorosi Urology Physician · Dover, DE NPI 1245226828 Jason Walther Urology Physician · Dover, DE NPI 1285629808 Marguerite Lenhardt Family Nurse Practitioner · Dover, DE NPI 1427045855 Dennis Horan Physician Assistant · Dover, DE NPI 1215928650

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-28.