Nathaniel Blakeslee Langer, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Boston, MA
Nathaniel Blakeslee Langer, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Boston, Massachusetts, and NPI 1447547682, issued on Jul 8, 2011. Check the license (Massachusetts 278326, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Nathaniel Blakeslee Langer
- Credential
- MD
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License numbers
- 278326 MA
21457 NH
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit Street, Boston, MA 02114
- Phone
- (617) 724-0800
- Enumerated
- Jul 8, 2011
- Record last updated
- Mar 29, 2023
- Medicaid ID
- 3117525 NH
- Medicare enrollment
- Enrolled (PECOS I20190625000072); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 228 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Abraham, M.D.Specialist1487743316
- Nadia Ahmad, M.D.Internal Medicine Physician1912198037
- Fayaz Ahmed, MDStudent in an Organized Health Care Education/Training Program1528245024
- John Albin, MD, PHDInfectious Disease Physician1528472644
- Mary Amatangelo, NPAcute Care Nurse Practitioner1114191442
- Tian You An, M.D.Anesthesiology Physician1801145792
Verify Nathaniel Blakeslee Langer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 278326Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $15,942.34
39 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Massachusetts General Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathaniel Blakeslee Langer among 228 thoracic surgery (cardiothoracic vascular surgery) physician records in Massachusetts
Nathaniel Blakeslee Langer, MD is one of 228 thoracic surgery (cardiothoracic vascular surgery) 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 2011, is newer than 68% of them.
- NPI issued2011 · 68% of these records are older, 25% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2011 · median 1998 among the 131 with a school on file
- Record last updated2023 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Massachusetts
There are 228 thoracic surgery (cardiothoracic vascular surgery) physician records in Massachusetts.
All 228 in Massachusetts → Every provider in Boston → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Cary Akins, MDBoston, MA 021141447231899
- James Allan, MDBoston, MA 021141699765859
- Henning Gaissert, MDBoston, MA 021141437149028
- Michael Lanuti, MDBoston, MA 021141992796817
- Joren Madsen, MD DPHLBoston, MA 021141760465652
- Douglas Mathisen, MDBoston, MA 021141699759019
- Christopher Morse, MDBoston, MA 021141235113556
- Ashok Muniappan, MDBoston, MA 021141871575159
Common questions
What is Nathaniel Blakeslee Langer, MD's NPI number?
Nathaniel Blakeslee Langer, MD's National Provider Identifier (NPI) is 1447547682, issued on Jul 8, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel Blakeslee Langer, MD located?
The NPPES record lists a practice address at 55 Fruit Street, Boston, MA, 02114. Phone: (617) 724-0800. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel Blakeslee Langer, MD's license?
NPPES lists Massachusetts license number 278326, 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.