Charles De Sieyes, M.D.
NPI 1083762181 · Family Medicine Physician · Falmouth, ME
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles De Sieyes, M.D. is a Family Medicine Physician provider in Falmouth, ME (NPI 1083762181).
Provider details
- NPI number
- 1083762181
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 10240 (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
- 2007-01-08
- Last updated
- 2014-05-25
Frequently asked questions
- What is Charles De Sieyes's NPI number?
- Charles De Sieyes's National Provider Identifier (NPI) is 1083762181, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles De Sieyes's specialty?
- Charles De Sieyes is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles De Sieyes located?
- Charles De Sieyes's practice location on file with NPPES is 202 US Route 1, Falmouth, ME 04105-1121.
- What is Charles De Sieyes's phone number?
- The practice phone number listed in the NPPES registry for Charles De Sieyes is (207) 781-4488.
- Does Charles De Sieyes accept Medicare?
- Charles De Sieyes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles De Sieyes's NPI active?
- Yes — Charles De Sieyes's NPI (1083762181) is active in the NPPES registry as of the last update on 2014-05-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.