Mark Worthing, MD
NPI 1447349600 · Family Medicine Physician · Brunswick, ME
Enrolled with Medicare as Practitioner - Undersea and Hyperbaric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Worthing, MD is a Family Medicine Physician provider in Brunswick, ME (NPI 1447349600).
Provider details
- NPI number
- 1447349600
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD12425 (ME)
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
19 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
- 2006-10-12
- Last updated
- 2012-08-09
Frequently asked questions
- What is Mark Worthing's NPI number?
- Mark Worthing's National Provider Identifier (NPI) is 1447349600, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Worthing's specialty?
- Mark Worthing is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Worthing located?
- Mark Worthing's practice location on file with NPPES is 74 Baribeau Dr, Brunswick, ME 04011-3218.
- What is Mark Worthing's phone number?
- The practice phone number listed in the NPPES registry for Mark Worthing is (207) 798-4050.
- Does Mark Worthing accept Medicare?
- Mark Worthing is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Worthing's NPI active?
- Yes — Mark Worthing's NPI (1447349600) is active in the NPPES registry as of the last update on 2012-08-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.