Henry John Merola, M.D., PC
NPI 1023277183 · Internal Medicine Physician · Waltham, MA
Henry John Merola, M.D., PC is a Internal Medicine Physician organization in Waltham, MA (NPI 1023277183).
Provider details
- NPI number
- 1023277183
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Henry Merola, M.D.(781) 894-8200
- License
- 59659 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-04
- Last updated
- 2011-10-06
Frequently asked questions
- What is Henry John Merola, M.D., PC's NPI number?
- Henry John Merola, M.D., PC's National Provider Identifier (NPI) is 1023277183, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Henry John Merola, M.D., PC?
- Henry John Merola, M.D., PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Henry John Merola, M.D., PC located?
- Henry John Merola, M.D., PC's practice location on file with NPPES is 32 South St, Waltham, MA 02453-3594.
- What is Henry John Merola, M.D., PC's phone number?
- The practice phone number listed in the NPPES registry for Henry John Merola, M.D., PC is (781) 894-8200.
- Who is the authorized official for Henry John Merola, M.D., PC?
- The authorized official listed on Henry John Merola, M.D., PC's NPPES record is Henry Merola, M.D.. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Henry John Merola, M.D., PC's NPI active?
- Yes — Henry John Merola, M.D., PC's NPI (1023277183) is active in the NPPES registry as of the last update on 2011-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.