Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark Francis, MD
Pediatrics Physician in Groton, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1104813302
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Registry record
Entity type Individual (Type 1)
Name Mark Francis
Credential MD
Sex Male
Practice address 100 Boston Rd, Suite F, Groton, MA, 01450
Phone (978) 577-0437
Fax (978) 448-6707
Enumeration date Oct 3, 2005
Last updated in NPPES Aug 20, 2020
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
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.
Frequently asked questions
What specialty is Mark Francis?
Mark Francis is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Dorothy Christiansen Rheumatology Physician · Groton, MA NPI 1558348953 Alfred Heinser Internal Medicine Physician · Groton, MA NPI 1871570218 Thomas Goodman Rheumatology Physician · Groton, MA NPI 1194702555 Karen Hiltunen Pediatrics Physician · Groton, MA NPI 1700864154 Jessica Amorosino Pediatrics Physician · Groton, MA NPI 1487601845 Paula Vaughan Medical Physician Assistant · Groton, MA NPI 1326154279 Groton Medical Associates, LLC Internal Medicine Physician · Groton, MA NPI 1144362740 Dana Oliver Pediatric Nurse Practitioner · Groton, MA NPI 1083861504
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-20.