Karen Wiedemann Eldin, MD
Anatomic Pathology & Clinical Pathology Physician · Boston, MA
Karen Wiedemann Eldin, MD is an anatomic pathology & clinical pathology physician with a practice address in Boston, Massachusetts, and NPI 1043266901, issued on May 25, 2006. Check the license (Massachusetts 293660, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Karen Wiedemann Eldin
- Credential
- MD
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License numbers
- 293660 MA
M1085 TX
Self-reported in NPPES; status is on the state search - Practice location
- 75 Francis St, Boston, MA 02115
- Phone
- (617) 732-5500
- Enumerated
- May 25, 2006
- Record last updated
- Jul 27, 2026
- Medicaid ID
- 180862801 TX
- Medicare enrollment
- Enrolled (PECOS I20220927001717); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 542 in Massachusetts → Look up another NPI →
Also registered at 75 Francis St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Emily Aaronson, M.D.Emergency Medicine Physician1962791558
- Sarah Abbett, M.D.Anesthesiology Physician1902097736
- Christine Abbott, NPAdult Health Nurse Practitioner1851471940
- Muhammad Abd-El-Barr, M.D., PH.D.Neurological Surgery Physician1891922688
- Duaa AbdelhameidStudent in an Organized Health Care Education/Training Program1851852867
Verify Karen Wiedemann Eldin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 293660Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Mass General Brigham Community Physicians IncMedford, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Wiedemann Eldin among 542 anatomic pathology & clinical pathology physician records in Massachusetts
Karen Wiedemann Eldin, MD is one of 542 anatomic pathology & clinical pathology physician records with a practice address in Massachusetts. 57% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 64% newer
- In a Medicare fileYes · 57% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2001 · median 2004 among the 305 with a school on file
- Record last updated2026 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in Massachusetts
There are 542 anatomic pathology & clinical pathology physician records in Massachusetts.
All 542 in Massachusetts → Every provider in Boston → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Theonia Boyd, MDBoston, MA 021151356350524
- Ruben Carrasco, MD PHDBoston, MA 021151427150838
- David Dorfman, MD PHDBoston, MA 021151679530976
- Mamta Gupta, MDBoston, MA 021151306983374
- Monica HollowellBoston, MA 021151780899013
- Xuefei Hong, M.D.Boston, MA 021151770567422
- Vania Nose', MD PHDBoston, MA 021151578544425
- Kirstine Oh, MDBoston, MA 021151558466557
Common questions
What is Karen Wiedemann Eldin, MD's NPI number?
Karen Wiedemann Eldin, MD's National Provider Identifier (NPI) is 1043266901, issued on May 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Wiedemann Eldin, MD located?
The NPPES record lists a practice address at 75 Francis St, Boston, MA, 02115. Phone: (617) 732-5500. Providers update this record themselves, so call before visiting.
How can I verify Karen Wiedemann Eldin, MD's license?
NPPES lists Massachusetts license number 293660, 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.
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.