1. Home
  2. Directory
  3. Massachusetts
  4. Boston
  5. Internal Medicine
  6. NPI Profile

MALLORY N LESIEUR M.D.
NPI 1154784510
Internal Medicine - Pulmonary Disease in Boston, MA

Active since April 03, 2016PECOS EnrolledAccepts Medicare Assignment
72 EAST CONCORD STREET, R304, BOSTON, MA 02118(617) 358-1340(617) 358-1337 Get Directions Write a Review

NPPES record last updated: July 21, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 21, 2023, Apr 3, 2016 (2 updates tracked since 2016).

About Mallory N Lesieur M.d. NPPES

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

MALLORY N LESIEUR M.D. (NPI 1154784510) is an individual pulmonary disease provider in Boston, Massachusetts, licensed in Massachusetts (288044) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS, is affiliated with Central Maine Medical Center, and maintains a secondary practice location in Salt Lake City.

NPPES Registry Identity

NPI1154784510
Entity TypeIndividualFemale
Primary Taxonomy207RP1001X
Provider Legal NameMALLORY N LESIEURCredential: M.D.
Location Address72 EAST CONCORD STREET, R304Boston, MA 02118-2690
Mailing Address960 Massachusetts Ave, Fl 2Boston, MA 02118-2690 · Fax (801) 581-5393
Phone(617) 358-1340
Fax(617) 358-1337
Sole ProprietorYes
Medical School CMSOtherGraduated 2016
Enumeration DateApril 3, 2016
Last NPPES UpdateJuly 21, 20232 updates tracked since enumeration
NPPES CertifiedJuly 21, 2023
✔ NPI 1154784510 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
License✔ Licensed in MA · 288044
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
Also ListedInternal MedicineTaxonomy 207R00000X · License 288044 (MA)
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 288044 (MA)
72 EAST CONCORD STREET, Boston, MA 02118
Open in Google Maps ↗

Secondary Practice Location 1

Location 150 N Medical DrSalt Lake City, UT 84132-0001 · Phone (801) 581-2121

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Taro Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mallory N Lesieur M.d. 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 ID1557627072
PECOS Enrollment IDI20231016000581
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Mallory Lesieur reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Bridgton Hospital
119 mi
Critical Access
10 HOSPITAL DR
Bridgton, ME 04009
  • Reassigned Medicare billing, Maine enrollment
  • 563 clinicians in this Medicare group
NPI 1154370153 (207) 795-5709
Central Maine Medical Center
129 mi
General Acute Care Hospital
300 MAIN ST
Lewiston, ME 04240
  • Reassigned Medicare billing, Maine enrollment
  • 920 clinicians in this Medicare group
NPI 1689653487 (207) 795-5646
Rumford Hospital
155 mi
Critical Access
420 FRANKLIN ST
Rumford, ME 04276
  • Reassigned Medicare billing, Maine enrollment
  • 544 clinicians in this Medicare group
NPI 1205991122 (207) 369-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 8

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
131 services87 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
47 services26 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
42 services39 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
24 services24 patients
Test to measure expiratory airflow and volume 94010
This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.
17 services17 patients
Test to measure expiratory airflow and volume changes before and after medication administration 94060
This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.
17 services17 patients

Hospital Affiliations CMS Care Compare 4

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

Central Maine Medical Center

Acute Care Hospitals · Lewiston, ME
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number200024
Location300 Main StreetLewiston, ME 04240 · Androscoggin County
Emergency services Birthing friendly

St Mary's Regional Medical Center

Acute Care Hospitals · Lewiston, ME
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number200034
Location93 Campus Avenue - PO Box 291Lewiston, ME 04243 · Androscoggin County
Emergency services

Rumford Hospital

Critical Access Hospitals · Rumford, ME
OwnershipProprietary
CMS Certification Number201306
Location420 Franklin StreetRumford, ME 04276 · Oxford County
Emergency services

Bridgton Hospital

Critical Access Hospitals · Bridgton, ME
OwnershipVoluntary non-profit - Private
CMS Certification Number201310
Location10 Hospital DriveBridgton, ME 04009 · Cumberland County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02118 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers12 claims12 services$14.89 avg. paid by Medicare
Portable oxygen contents, gaseous, 1 month's supply = 1 unit E0443
DME-Oxygen and Supplies · category DC000N
1 supplier11 claims11 services$43.73 avg. paid by Medicare
Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613
DME-Drugs Administered Through DME · category DG006N
3 suppliers12 claims3,076 services$0.04 avg. paid by Medicare
Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513
DME-Other DME · category DE000N
3 suppliers14 claims14 services$26.06 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 13

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

GRACE ELIZABETH RYAN
Student in an Organized Health Care Education/Training Program
72 EAST CONCORD STREET, EVANS 124
BOSTON, MA 02118
Suffolk County (617) 638-6500
DR. JOSUE BRYANT ESTRELLA MD
Student in an Organized Health Care Education/Training Program
72 EAST CONCORD STREET, BOSTON MEDICAL CENTER, SURGERY EDUCATION OFFICE
BOSTON, MA 02118
Suffolk County (617) 638-8442
SHIVANI JINDAL M.D.
Internal Medicine (Geriatric Medicine)
72 EAST CONCORD STREET, ROBINSON 2700
BOSTON, MA 02118
Suffolk County (617) 638-6178
ABIGAIL A CARRIER NP
Nurse Practitioner (Acute Care)
72 EAST CONCORD STREET, R304
BOSTON, MA 02118
Suffolk County (617) 358-1340
AMY YUAN HABIB MD
Student in an Organized Health Care Education/Training Program
72 EAST CONCORD STREET, EVANS 124
BOSTON, MA 02118
Suffolk County (617) 638-6500
DANIELLE NICOLE DAVIS MD
Student in an Organized Health Care Education/Training Program
72 EAST CONCORD STREET, EVANS 124
BOSTON, MA 02118
Suffolk County (617) 638-6500
JEFFREY ANDREW MELVIN MD
Student in an Organized Health Care Education/Training Program
72 EAST CONCORD STREET, SURGERY EDUCATION OFFICE, COLLAMORE BUILDING, 5TH FLOOR
BOSTON, MA 02118
Suffolk County (617) 638-8442
ANNA JACQUELINE KOBZEVA-HERZOG MD
Surgery
72 EAST CONCORD STREET, COLLAMORE BUILDING, C515
BOSTON, MA 02118
Suffolk County (617) 638-8442

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 Mallory Lesieur's NPI number?

The NPI number for Mallory Lesieur is 1154784510. It was assigned to this individual provider in the NPPES registry on April 3, 2016.

Where is Mallory Lesieur located?

Mallory Lesieur practices at 72 East Concord Street R304, Boston, MA 02118. The listed phone number is (617) 358-1340.

What is Mallory Lesieur's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Mallory Lesieur enrolled in Medicare?

Yes. Mallory Lesieur 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.

Which organizations bill Medicare for Mallory Lesieur's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mallory Lesieur reassigns Medicare benefits to 3 organizations: Bridgton Hospital (Bridgton, ME), Central Maine Medical Center (Lewiston, ME) and Rumford Hospital (Rumford, ME). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mallory Lesieur's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mallory Lesieur accept?

Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Mallory Lesieur 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 Mallory Lesieur affiliated with any hospitals?

According to CMS data, Mallory Lesieur is affiliated with Central Maine Medical Center, St Mary's Regional Medical Center, Rumford Hospital and Bridgton Hospital.

When was this NPI record last updated?

The NPPES record for Mallory Lesieur was last updated on July 21, 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.