James Frederick Knudsen, PH.D., M.D.
Internal Medicine Physician · Calais, ME
James Frederick Knudsen, PH.D., M.D. is an internal medicine physician with a practice address in Calais, Maine, and NPI 1194048991, issued on Mar 8, 2010. Check the license on the Maine Board of Licensure in Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- James Frederick Knudsen
- Credential
- PH.D., M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0101040442 VA
Self-reported in NPPES; status is on the state search - Practice location
- 70 Lafayette St, Calais, ME 04619
- Phone
- (207) 454-0053
- Enumerated
- Mar 8, 2010
- Record last updated
- Mar 8, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 597 in Maine → Look up another NPI →
Verify James Frederick Knudsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
James Frederick Knudsen among 597 internal medicine physician records in Maine
James Frederick Knudsen, PH.D., M.D. is one of 597 internal medicine physician records with a practice address in Maine. 77% 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 2010, is newer than 67% of them.
- NPI issued2010 · 67% of these records are older, 31% newer
- In a Medicare fileNo · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2010 · 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 207R00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 internal medicine physician records list a practice address in Calais
They are 5 of the 186 NPPES records with a practice address in Calais, and 597 internal medicine physician records in Maine. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 597 in Maine → Every provider in Calais → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Christopher Corcoran, MDCalais, ME 046191457352403
- Elizabeth Eliacin, MDCalais, ME 046191215918461
- David Simmons, MDCalais, ME 046191093801102
- Peter Wilkinson, D.O.Calais, ME 046191578594818
- Arthur Smith, MDBlue Hill, ME 046141851761936
- Ayesha Zahid, M.D.Blue Hill, ME 046141659953933
- Elizabeth Zentz, M.D.Blue Hill, ME 046141174513857
- Mark Brown, MDBar Harbor, ME 046091982683496
Common questions
What is James Frederick Knudsen, PH.D., M.D.'s NPI number?
James Frederick Knudsen, PH.D., M.D.'s National Provider Identifier (NPI) is 1194048991, issued on Mar 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is James Frederick Knudsen, PH.D., M.D. located?
The NPPES record lists a practice address at 70 Lafayette St, Calais, ME, 04619. Phone: (207) 454-0053. Providers update this record themselves, so call before visiting.
How can I verify James Frederick Knudsen, PH.D., M.D.'s license?
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.
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.