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

John H Shackelford Jr., DO

Individual provider Internal Medicine Physician · NPI 1598724072

John H Shackelford Jr., DO is an Internal Medicine Physician in Harwich, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
In the registry since
2006
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.

See every abbreviation used in this directory →

Practice location Address checks out

1421 Orleans Rd
Harwich, MA 02645-2148
Phone: (508) 778-4777
Fax: (508) 771-9555
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 220500 (MA)

Record details

NPI number1598724072
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 22, 2006
Last updated in NPPESJune 17, 2019

Other providers in Harwich