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

Dr. Howard Steven Mitz, DO

Individual provider Gastroenterology Physician · NPI 1558365155

Dr. Howard Steven Mitz, DO is a Gastroenterology in Littleton, New Hampshire. Graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 1985, 41 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
41
Trained at
Kansas City University of Med & Biosciences, College of Osteo Med
Licensed in
NH
In the registry since
2005
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

220 Cottage St
Littleton, NH 03561-4101
Phone: (603) 444-0272
Fax: (603) 444-0274
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 9856 (NH)

Record details

NPI number1558365155
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedJune 10, 2005
Last updated in NPPESFebruary 23, 2021
Certification dateFebruary 23, 2021

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolKANSAS CITY UNIVERSITY OF MED & BIOSCIENCES, COLLEGE OF OSTEO MED
Graduated 1985 (41 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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