Mark B. Letterman, DC, OMD

Chiropractor · Rehoboth Beach, DE

Individual Active NPI

NPI number 1285525543

Practice location

70 Rehoboth Ave
Rehoboth Beach, DE 19971-2171
Phone
(302) 612-1077

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NPI record

NPI
1285525543
Entity type
Individual (Type 1)
Enumeration date
July 14, 2025
Last updated
July 14, 2025
Certified
July 14, 2025
Sole proprietor
Yes

Specialties & taxonomy codes

TaxonomyCodeLicenseState
Chiropractor Primary 111N00000X F1-0011109 DE
Acupuncturist 171100000X CT-0010019 DE

Mailing address

1803 Slaughter Station Rd
Hartly, DE 19953-3222

About Dr. Letterman

Mark B. Letterman, DC, OMD is a healthcare provider registered in the NPI registry with the primary taxonomy Chiropractor (code 111N00000X). The practice location is 70 Rehoboth Ave, Rehoboth Beach, DE 19971-2171. The NPI number 1285525543 was assigned on July 14, 2025 and the record was last updated on July 14, 2025.

Dr. Letterman lists 2 licenses in the registry: #F1-0011109 (DE) for Chiropractor; #CT-0010019 (DE) for Acupuncturist. License numbers are self-reported to NPPES; verify them with the state licensing board.

Frequently asked questions

What is the NPI number of Mark B. Letterman, DC, OMD?

The NPI number is 1285525543.

What is the phone number of Dr. Letterman?

The phone number listed for the practice location is (302) 612-1077.

Where is Dr. Letterman located?

70 Rehoboth Ave, Rehoboth Beach, DE 19971-2171.

What is the taxonomy code for Dr. Letterman?

The primary taxonomy code is 111N00000X – Chiropractor; 1 more listed above.

Is this information correct?

All details come from the public NPPES registry. Providers can update their record at nppes.cms.hhs.gov; changes appear here after the next weekly update.

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