MICHAEL JAMES DENNIS MD
NPI 1629519855
Internal Medicine - Medical Oncology in Boston, MA

Active since March 20, 2017PECOS EnrolledAccepts Medicare Assignment
86.28/100
CMS Quality Rating
450 BROOKLINE AVE, BOSTON, MA 02215(617) 632-3090(617) 632-4448 Get Directions Write a Review

NPPES record last updated: July 17, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 17, 2023, Aug 5, 2021, Jun 19, 2017 and 1 more (4 updates tracked since 2017).

About Michael James Dennis Md NPPES

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

MICHAEL JAMES DENNIS MD (NPI 1629519855) is an individual medical oncology provider in Boston, Massachusetts, licensed in Massachusetts (1013666) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Newton-wellesley Hospital, and is a graduate of Virginia Commonwealth University, School Of Medicine (2017).

NPPES Registry Identity

NPI1629519855
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameMICHAEL JAMES DENNISCredential: MD
Location Address450 BROOKLINE AVEBoston, MA 02215-5450
Mailing Address450 Brookline AveBoston, MA 02215-5450 · (176) 323-0906 · Fax (617) 632-4448
Fax(617) 632-4448
Sole ProprietorNo
Medical School CMSVirginia Commonwealth University, School Of MedicineGraduated 2017
Enumeration DateMarch 20, 2017
Last NPPES UpdateJuly 17, 20234 updates tracked since enumeration
NPPES CertifiedJuly 17, 2023
NPI 1629519855 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License Licensed in MA · 1013666
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
Also ListedInternal MedicineTaxonomy 207R00000X · License 1013666 (MA)
450 BROOKLINE AVE, Boston, MA 02215

Accepted 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

Michael James Dennis 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 ID4789955600
PECOS Enrollment IDI20230615001786
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 7

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
143 services48 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.
131 services38 patients
Exam of the nose and throat using an endoscope 92511
An endoscopic examination of the nose and throat is a procedure where a thin, flexible tube with a light and camera attached (endoscope) is used to view these areas in detail. It helps identify any abnormalities or issues that may be causing symptoms like difficulty swallowing, persistent cough, or nasal congestion.
49 services30 patients
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.
45 services45 patients
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.
36 services22 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
22 services22 patients

Hospital Affiliations CMS Care Compare 2

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

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

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220110
Location75 Francis StreetBoston, MA 02115 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02215 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
$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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

86.28/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality69.36
Promoting Interoperability100
Improvement Activities40

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.

Internal Medicine (Hematology & Oncology)
450 BROOKLINE AVE
BOSTON, MA 02215
Physician Assistant
450 BROOKLINE AVE
BOSTON, MA 02215
Genetic Counselor, MS
450 BROOKLINE AVE
BOSTON, MA 02215
Pediatrics (Pediatric Hematology-Oncology)
450 BROOKLINE AVE
BOSTON, MA 02215
Counselor (Mental Health)
450 BROOKLINE AVE
BOSTON, MA 02215
Internal Medicine (Hematology & Oncology)
450 BROOKLINE AVE, DANA 2058
BOSTON, MA 02215
Nurse Practitioner
450 BROOKLINE AVE
BOSTON, MA 02215
Genetic Counselor, MS
450 BROOKLINE AVE
BOSTON, MA 02215

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 Michael Dennis's NPI number?

The NPI number for Michael Dennis is 1629519855. It was assigned to this individual provider in the NPPES registry on March 20, 2017.

Where is Michael Dennis located?

Michael Dennis practices at 450 Brookline Ave, Boston, MA 02215. The listed phone number is (617) 632-3090.

What is Michael Dennis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Michael Dennis enrolled in Medicare?

Yes. Michael Dennis 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 Michael Dennis accept?

Health plans from Anthem Blue Cross and Blue Shield list Michael Dennis 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 Michael Dennis affiliated with any hospitals?

According to CMS data, Michael Dennis is affiliated with Newton-Wellesley Hospital and Brigham And Women's Hospital.

When was this NPI record last updated?

The NPPES record for Michael Dennis was last updated on July 17, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.