NPPES file of Aug 9, 2026

Charles Joseph De Sieyes, M.D.

Family Medicine Physician · Falmouth, ME

Charles Joseph De Sieyes, M.D. is a family medicine physician with a practice address in Falmouth, Maine, and NPI 1083762181, issued on Jan 8, 2007. Check the license (Maine 10240, as entered in NPPES) on the Maine Board of Licensure in Medicine; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083762181
Name
Charles Joseph De Sieyes
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
10240 ME
Self-reported in NPPES; status is on the state search
Practice location
202 US Route 1, Falmouth, ME 04105
Phone
(207) 781-4488
Enumerated
Jan 8, 2007
Record last updated
May 25, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(207) 781-4470
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest family medicine physician records → All 1,172 in Maine → Look up another NPI →

Also registered at 202 US Route 1

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bethany Hays, M.D.Obstetrics & Gynecology Physician1710034749
  2. Glen Knock, D.D.S.General Practice Dentistry1376767715
  3. Lisa Morse, LMT, EXPMassage Therapist1497956171
  4. Jason RoncoMental Health Counselor1174911101
  5. Benjamin Thompson, M.D.Family Medicine Physician1649378332
  6. David Vocal, D.D.S.General Practice Dentistry1902029390

Verify Charles Joseph De Sieyes in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
    Search for license 10240    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maine license search

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Charles Joseph De Sieyes among 1,172 family medicine physician records in Maine

Charles Joseph De Sieyes, M.D. is one of 1,172 family medicine physician records with a practice address in Maine. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 48% of them.

  • NPI issued2007 · 48% of these records are older, 44% newer
  • In a Medicare fileNo · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2014 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

21 family medicine physician records list a practice address in Falmouth

They are 21 of the 429 NPPES records with a practice address in Falmouth, and 1,172 family medicine physician records in Maine. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,172 in Maine → Every provider in Falmouth → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Jeffrey Aalberg, MDFalmouth, ME 041051669400222
  2. Leigh Baker, DOFalmouth, ME 041051679688956
  3. Laura Blutstein, MDFalmouth, ME 041051518914282
  4. Mark Bouchard, MDFalmouth, ME 041051023040656
  5. Anne Boyd, MDFalmouth, ME 041051376518662
  6. Adam Kazimierczak, DOFalmouth, ME 041051467459032
  7. Regina Kim, MDFalmouth, ME 041051104906155
  8. James Kirsh, D.O.Falmouth, ME 041051891791315

Common questions

What is Charles Joseph De Sieyes, M.D.'s NPI number?

Charles Joseph De Sieyes, M.D.'s National Provider Identifier (NPI) is 1083762181, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Charles Joseph De Sieyes, M.D. located?

The NPPES record lists a practice address at 202 US Route 1, Falmouth, ME, 04105. Phone: (207) 781-4488. Providers update this record themselves, so call before visiting.

How can I verify Charles Joseph De Sieyes, M.D.'s license?

NPPES lists Maine license number 10240, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.