Christopher J. Ladner, MD, PHD
Diagnostic Radiology Physician · Greenfield, MA
Christopher J. Ladner, MD, PHD is a diagnostic radiology physician with a practice address in Greenfield, Massachusetts, and NPI 1134203722, issued on Oct 24, 2006. Check the license (Massachusetts 247286, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Christopher J. Ladner
- Credential
- MD, PHD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License numbers
- 247286 MA
236567 NY
MD13226 RI
0420011172 VT
Self-reported in NPPES; status is on the state search - Practice location
- 164 High St, Greenfield, MA 01301
- Phone
- (413) 773-2063
- Enumerated
- Oct 24, 2006
- Record last updated
- Feb 18, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (612) 294-4903
- Medicare enrollment
- Enrolled (PECOS I20120807000426); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,658 in Massachusetts → Look up another NPI →
Also registered at 164 High St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Fatima Adeyemi, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1629909460
- Robert Ajello, MDPulmonary Disease Physician1518930916
- James Arcoleo, DOCardiovascular Disease Physician1407885676
- Justyna Arcoleo, FNP/DNPFamily Nurse Practitioner1316215312
- Kathryn Aubry-McAvoy, NPFamily Nurse Practitioner1912130642
- Jill Bascomb, MDEmergency Medicine Physician1720026685
Verify Christopher J. Ladner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 247286Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Radiology And Imaging IncSpringfield, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher J. Ladner among 1,658 diagnostic radiology physician records in Massachusetts
Christopher J. Ladner, MD, PHD is one of 1,658 diagnostic radiology physician records with a practice address in Massachusetts. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 57% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1999 · median 2006 among the 1,125 with a school on file
- Record last updated2014 · 53% 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 Massachusetts 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 Massachusetts
There are 1,658 diagnostic radiology physician records in Massachusetts.
All 1,658 in Massachusetts → Every provider in Greenfield → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Robert Dann, M.D.Greenfield, MA 013011831189026
- Howard Natenshon, M.D.Greenfield, MA 013011811974967
- Erik Rhodes, M.D.Greenfield, MA 013011306823315
- Robert Yoon, M.D.Greenfield, MA 013011457332397
- Jeffrey Bath, M.D.Williamstown, MA 012671972684207
- Henry GoldNorth Adams, MA 012471518064427
- Andre Langlois, M.D.North Adams, MA 012471144329921
- Susan Frank, M.D.Lenox, MA 012401629168588
Common questions
What is Christopher J. Ladner, MD, PHD's NPI number?
Christopher J. Ladner, MD, PHD's National Provider Identifier (NPI) is 1134203722, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christopher J. Ladner, MD, PHD located?
The NPPES record lists a practice address at 164 High St, Greenfield, MA, 01301. Phone: (413) 773-2063. Providers update this record themselves, so call before visiting.
How can I verify Christopher J. Ladner, MD, PHD's license?
NPPES lists Massachusetts license number 247286, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Christopher J. Ladner, MD, PHD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.