OrganizationActive
Daniel Mark Merson
NPI 1003096017 · Internal Medicine Physician · Portland, ME
Provider details
- NPI number
- 1003096017
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Daniel Merson, Owner(207) 878-5042
- License
- ME1373 (ME)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(88/100 index)
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
1250 Forest Ave
Portland, ME 04103-1889
Phone: (207) 878-5042
Fax: (207) 878-5043
Street-level locationGet directions
Mailing address
1250 Forest Ave
Portland, ME 04103-1889
Registry dates
- Enumerated
- 2007-11-07
- Last updated
- 2008-10-16
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.