Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Gregory Dean Lettman, DC

Individual provider Chiropractor · NPI 1114960226

Dr. Gregory Dean Lettman, DC is a Chiropractic in Dubuque, Iowa. Graduated from Palmer College Chiropractic - Davenport in 2001, 25 years ago. Practices with Lettman Chiropractic Rehab Care, a 3-clinician group and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
25
Trained at
Palmer College Chiropractic - Davenport
Licensed in
IA
In the registry since
2006
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

2095 John F Kennedy Rd
Dubuque, IA 52002-3899
Phone: (563) 588-9200
Fax: (563) 583-6594
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 06539 (IA)

Record details

NPI number1114960226
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedJune 14, 2006
Last updated in NPPESJune 10, 2024
Certification dateJune 10, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCHIROPRACTIC
Medical schoolPALMER COLLEGE CHIROPRACTIC - DAVENPORT
Graduated 2001 (25 years in practice)
Group practice Lettman Chiropractic Rehab Care — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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