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DR. NATHANIEL BLAKESLEE LANGER MD
NPI 1447547682
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Boston, MA

Active since July 08, 2011PECOS EnrolledAccepts Medicare Assignment
55 FRUIT STREET, COX 630, BOSTON, MA 02114(617) 724-0800 Get Directions Write a Review

NPPES record last updated: March 29, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 29, 2023, May 13, 2019, Apr 9, 2019 and 2 more (5 updates tracked since 2015).

About Dr. Nathaniel Blakeslee Langer Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. NATHANIEL BLAKESLEE LANGER MD (NPI 1447547682) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Boston, Massachusetts, licensed in Massachusetts (278326) and active in the NPI registry since July 2011. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and maintains a secondary practice location in Portsmouth.

NPPES Registry Identity

NPI1447547682
Entity TypeIndividualMale
Primary Taxonomy208G00000X
Provider Legal NameDR. NATHANIEL BLAKESLEE LANGERCredential: MD
Location Address55 FRUIT STREET, COX 630Boston, MA 02114
Mailing Address177 Fort Washington Avenue, Mhb 7gn-435New York, NY 10032 · (212) 305-2860 · Fax (917) 591-8894
Phone(617) 724-0800
Sole ProprietorYes
Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 2011
Enumeration DateJuly 8, 2011
Last NPPES UpdateMarch 29, 20235 updates tracked since enumeration
NPPES CertifiedMarch 29, 2023
✔ NPI 1447547682 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians
Taxonomy Code208G00000X
Licenses✔ Licensed in MA · 278326✔ Licensed in NH · 21457
Definition
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.
55 FRUIT STREET, Boston, MA 02114
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Secondary Practice Location 1

Location 167 Corporate Dr Ste 200Portsmouth, NH 03801-2847 · Phone (603) 610-8070

Other Identifiers 1

Medicaid3117525NH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care, WellSense Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Nathaniel Blakeslee Langer Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6800198011
PECOS Enrollment IDI20190625000072
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
142 services142 patients
Replacement of aortic valve through the skin and femoral artery 33361
This procedure, known as Transcatheter Aortic Valve Replacement (TAVR), involves replacing a damaged aortic valve through a small incision in the leg. A catheter is inserted into the femoral artery and guided up to the heart. The new valve is then positioned and deployed, restoring normal blood flow.
96 services96 patients
Radical reconstruction of mitral valve on heart-lung machine 33427
Radical reconstruction of the mitral valve on a heart-lung machine is a surgery to repair a damaged valve in your heart. The heart-lung machine takes over the function of your heart and lungs during the procedure. This allows the surgeon to work on a still, blood-free heart to improve its function.
26 services26 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
22 services22 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
18 services18 patients
Insertion of artificial valve between left heart chambers, accessed through the skin 0483T
This procedure involves placing an artificial valve between the left chambers of your heart. It's done through the skin, meaning no large incisions are needed. This can help improve heart function if your own valve isn't working properly.
12 services12 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220071
Location55 Fruit StreetBoston, MA 02114 · Suffolk County
Emergency services Birthing friendly

Newton-Wellesley Hospital

Acute Care Hospitals · Newton, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220101
Location2014 Washington StreetNewton, MA 02462 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$189.86 typical visit price
range $63.72 – $189.86
Typical copayment $47.46 (range $15.93 – $47.46)
Most-billed visit code 99205
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KUI TOH GERARD LEONG M.D.
Internal Medicine (Cardiovascular Disease)
55 FRUIT STREET, MASSACHUSETTS GENERAL HOSPITAL
BOSTON, MA 02114
Suffolk County (617) 726-8862
MS. JACQUELINE BANGO LICSW
Social Worker (Clinical)
55 FRUIT STREET, FOUNDERS BUILDING SUITE 880
BOSTON, MA 02114
Suffolk County (617) 643-8281
SARA ELIZABETH GROSSLEIN PA
Physician Assistant
55 FRUIT STREET, WHITE 1
BOSTON, MA 02114
Suffolk County (617) 724-4100
JEFFREY M ELLENBOGEN M.D.
Psychiatry & Neurology (Neurology)
55 FRUIT STREET, WANG 720 (NEUROLOGY)
BOSTON, MA 02114
Suffolk County (617) 724-7419
DR. NANCY LEE HARRIS MD
Pathology (Anatomic Pathology & Clinical Pathology)
55 FRUIT STREET, WRN 2 PATHOLOGY ASSOCIATES
BOSTON, MA 02114
Suffolk County (617) 726-5155
DR. STANLEY YANG SHAW MD PHD
Internal Medicine (Cardiovascular Disease)
55 FRUIT STREET, YAW 5 CARDIAC UNIT ASSOCIATES
BOSTON, MA 02114
Suffolk County (617) 724-6750
LEONARDO V RIELLA M.D., PHD
Internal Medicine
55 FRUIT STREET, WHITE 5
BOSTON, MA 02114
Suffolk County (617) 726-5050
SUSAN MAHER CRNA
Nurse Anesthetist, Certified Registered
55 FRUIT STREET, CLN 309 MGH ANESTHESIA ASSOCIATES
BOSTON, MA 02114
Suffolk County (617) 726-3030

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Nathaniel Langer's NPI number?

The NPI number for Nathaniel Langer is 1447547682. It was assigned to this individual provider in the NPPES registry on July 8, 2011.

Where is Nathaniel Langer located?

Nathaniel Langer practices at 55 Fruit Street Cox 630, Boston, MA 02114. The listed phone number is (617) 724-0800.

What is Nathaniel Langer's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is Nathaniel Langer enrolled in Medicare?

Yes. Nathaniel Langer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Nathaniel Langer accept?

Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and WellSense Health Plan list Nathaniel Langer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Nathaniel Langer affiliated with any hospitals?

According to CMS data, Nathaniel Langer is affiliated with Massachusetts General Hospital and Newton-Wellesley Hospital.

When was this NPI record last updated?

The NPPES record for Nathaniel Langer was last updated on March 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.