Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Henry Martin Yager, M.D.
Nephrology Physician in Newton, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1902865363
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Registry record
Entity type Individual (Type 1)
Name Dr. Henry Martin Yager
Credential M.D.
Sex Male
Practice address 2014 Washington St, Newton, MA, 02462
Phone (617) 244-6940
Fax (617) 243-6701
Enumeration date Mar 22, 2006
Last updated in NPPES Jan 10, 2012
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
Where does Henry Yager practice?
The practice location on file with NPPES is in Newton, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Henry Yager?
The National Provider Identifier (NPI) for Henry Yager is 1902865363, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-10.