NPPES file of Aug 9, 2026

Nelson L. Thaemert, MD

Anesthesiology Physician · Boston, MA

Nelson L. Thaemert, MD is an anesthesiology physician with a practice address in Boston, Massachusetts, and NPI 1245296417, issued on Apr 25, 2006. Check the license (Massachusetts 219936, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1245296417
Name
Nelson L. Thaemert
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
219936 MA
Self-reported in NPPES; status is on the state search
Practice location
75 Francis St Cwn L1, Boston, MA 02115
Phone
(617) 732-8210
Enumerated
Apr 25, 2006
Record last updated
Jun 24, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20050518000674); accepts Medicare assignment
Medical or professional school
University Of Virginia School Of Medicine, 2001
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 75 Francis St Cwn L1

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

  1. Linda Aglio, MDAnesthesiology Physician1194781856
  2. Eileen Lynch, MDAnesthesiology Physician1740246800
  3. Ramon Martin, MD PHDAnesthesiology Physician1215973573
  4. Pankaj Sarin, MDAnesthesiology Physician1689696544
  5. Charles Vacanti, MDAnesthesiology Physician1770540395

Verify Nelson L. Thaemert in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 219936
    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 Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Brigham And Womens Physicians Organization IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

1,082 anesthesiology physician records list a practice address in Boston

They are 1,082 of the 41,865 NPPES records with a practice address in Boston, and 2,089 anesthesiology physician records in Massachusetts.

Other anesthesiology physician records in Massachusetts

  1. John Abadir, M.DBoston, MA1891937298
  2. Matthew AbadirBoston, MA1699120550
  3. Sarah Abbett, M.D.Boston, MA1902097736
  4. Brendan Abbott, DOBrighton, MA1477244796
  5. Megan Abbott, MDBoston, MA1730839333
  6. Timothy Abbott, D.O.Northampton, MA1316155294
  7. Kathryn Aberle, MDBoston, MA1669447835
  8. Scott AbernathyWorcester, MA1639630817
  9. Abdullah Abolkhair, M.D.Boston, MA1649434325
  10. Lori Abrahamian, M.D.Boston, MA1528012192

Common questions

What is Nelson L. Thaemert, MD's NPI number?

Nelson L. Thaemert, MD's National Provider Identifier (NPI) is 1245296417, issued on Apr 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nelson L. Thaemert, MD located?

The NPPES record lists a practice address at 75 Francis St Cwn L1, Boston, MA, 02115. Phone: (617) 732-8210. Providers update this record themselves, so call before visiting.

How can I verify Nelson L. Thaemert, MD's license?

NPPES lists Massachusetts license number 219936, 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.