David Russell Langdon, M.D.
Diagnostic Radiology Physician · Portland, ME
David Russell Langdon, M.D. is a diagnostic radiology physician with a practice address in Portland, Maine, and NPI 1083691034, issued on Dec 29, 2005. Check the license (Maine 015259, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- David Russell Langdon
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 015259 ME
Self-reported in NPPES; status is on the state search - Practice location
- 144 State St, Portland, ME 04101
- Phone
- (207) 879-3000
- Enumerated
- Dec 29, 2005
- Record last updated
- Jul 16, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050906000039); may accept Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 1991
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 182 in Maine → Look up another NPI →
Also registered at 144 State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Francis Altman, M.D.Anesthesiology Physician1033138797
- David Andrews, M.D.Anesthesiology Physician1861429268
- Sandra Aubelangella, CNSPsychiatric/Mental Health Nurse Practitioner1306883129
- Mary Louise Bates, M.D.Anesthesiology Physician1427035666
- Normand Begin, CRNACertified Registered Nurse Anesthetist1235186412
- Denise BenedictPhysician Office Based Coding Specialist1487907978
Verify David Russell Langdon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license 015259Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 83 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 5 group practices
- New England Radiological Consortium LLCFalmouth, ME
- Radiology Consultants OF Maine LLCBrunswick, ME
- Radiology Professionals PAPortland, ME
- Sebasticook Valley HealthPittsfield, ME
- Spectrum Healthcare Partners PAPortland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Russell Langdon among 182 diagnostic radiology physician records in Maine
David Russell Langdon, M.D. is one of 182 diagnostic radiology physician records with a practice address in Maine. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 75% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1991 · median 2003 among the 111 with a school on file
- Record last updated2007 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in Maine
There are 182 diagnostic radiology physician records in Maine.
All 182 in Maine → Every provider in Portland → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- David Greatorex, M.D.Portland, ME 041011164409264
- Jerald Kuhn, M.D.Portland, ME 041011073590022
- Leslie RoubPortland, ME 041011396722401
- Margaret Soroka, M.D.Portland, ME 041011871943597
- Henry Talarico, M.D.Portland, ME 041011093792145
- Elena Wechsler, M.D.Portland, ME 041011487681375
- Edward Cruz, M.D.Portland, ME 041021427049667
- Steven Farraher, M.D.Portland, ME 041021245219476
Common questions
What is David Russell Langdon, M.D.'s NPI number?
David Russell Langdon, M.D.'s National Provider Identifier (NPI) is 1083691034, issued on Dec 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is David Russell Langdon, M.D. located?
The NPPES record lists a practice address at 144 State St, Portland, ME, 04101. Phone: (207) 879-3000. Providers update this record themselves, so call before visiting.
How can I verify David Russell Langdon, M.D.'s license?
NPPES lists Maine license number 015259, 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.
What is David Russell Langdon, M.D.'s MIPS final score?
The 2023 MIPS final score is 83 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.