DR. STEVE G MASSAQUOI M.D., PH.D.
NPI 1811934813
Psychiatry & Neurology - Neurology in Boston, MA

Active since May 31, 2006PECOS EnrolledAccepts Medicare Assignment
55 FRUIT ST, DEPARTMENT OF NEUROLOGY, BOSTON, MA 02114(617) 726-2000 Get Directions Write a Review

NPPES record last updated: April 4, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Steve G Massaquoi M.d., Ph.d. NPPES

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

DR. STEVE G MASSAQUOI M.D., PH.D. (NPI 1811934813) is an individual neurology provider in Boston, Massachusetts, licensed in Massachusetts (56107) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Northeast Hospital Corporation, and maintains a secondary practice location in Burlington.

NPPES Registry Identity

NPI1811934813
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameDR. STEVE G MASSAQUOICredential: M.D., PH.D.
Location Address55 FRUIT ST, DEPARTMENT OF NEUROLOGYBoston, MA 02114-2621
Mailing Address49 Hill Rd, #49Belmont, MA 02478-4304 · (617) 686-9126
Sole ProprietorNo
Medical School CMSHarvard Medical SchoolGraduated 1983
Enumeration DateMay 31, 2006
Last NPPES UpdateApril 4, 2023
NPPES CertifiedApril 4, 2023
NPI 1811934813 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License Licensed in MA · 56107
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
55 FRUIT ST, Boston, MA 02114

Secondary Practice Location 1

Location 141 Mall RdBurlington, MA 01805-2621 · Phone (781) 744-8000

Other Identifiers 4

Medicaid3194922MA
OtherM00148MA · Harvard Pilgrim Healthpla
Other158335MA · Tufts Healtplan
OtherJ05646MA · Blue Shield

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

Dr. Steve G Massaquoi M.d., Ph.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 ID9436168143
PECOS Enrollment IDI20060407000188
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 2

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
100 services99 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
60 services57 patients

Hospital Affiliations CMS Care Compare 2

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

Northeast Hospital Corporation

Acute Care Hospitals · Beverly, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220033
Location85 Herrick StreetBeverly, MA 01915 · Essex County
Emergency services Birthing friendly

Winchester Hospital

Acute Care Hospitals · Winchester, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220105
Location41 Highland AvenueWinchester, MA 01890 · 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
$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.

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.

Pathology (Anatomic Pathology)
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Hematology & Oncology)
55 FRUIT ST
BOSTON, MA 02114
Anesthesiology
55 FRUIT ST, GRAY-BIGELOW 444
BOSTON, MA 02114
Physical Medicine & Rehabilitation
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Infectious Disease)
55 FRUIT ST, DIVISION OF INFECTIOUS DISEASE, GRJ-504
BOSTON, MA 02114
Nurse Practitioner (Acute Care)
55 FRUIT ST, BIGALOW 852 F
BOSTON, MA 02114
Nurse Practitioner
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Cardiovascular Disease)
55 FRUIT ST
BOSTON, MA 02114

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 Steve Massaquoi's NPI number?

The NPI number for Steve Massaquoi is 1811934813. It was assigned to this individual provider in the NPPES registry on May 31, 2006.

Where is Steve Massaquoi located?

Steve Massaquoi practices at 55 Fruit St Department Of Neurology, Boston, MA 02114. The listed phone number is (617) 726-2000.

What is Steve Massaquoi's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Steve Massaquoi enrolled in Medicare?

Yes. Steve Massaquoi 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 Steve Massaquoi accept?

Health plans from Anthem Blue Cross and Blue Shield list Steve Massaquoi 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 Steve Massaquoi affiliated with any hospitals?

According to CMS data, Steve Massaquoi is affiliated with Northeast Hospital Corporation and Winchester Hospital.

When was this NPI record last updated?

The NPPES record for Steve Massaquoi was last updated on April 4, 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.