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

Henry John Merola, MD, PC

Organization Internal Medicine Physician · NPI 1023277183

Henry John Merola, MD, PC is an Internal Medicine Physician in Waltham, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2008.

Licensed in
MA
In the registry since
2008
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

32 S St Ste 205
Waltham, MA 02453-3594
Phone: (781) 894-8200
Fax: (781) 894-8202
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 59659 (MA)

Record details

NPI number1023277183
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Henry Merola — M.D. · (781) 894-8200
NPI enumeratedJune 4, 2008
Last updated in NPPESOctober 6, 2011
Mailing address32 South St, Suite #205, Waltham, MA 02453-3594

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