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GREGORY DENNIS HOLLIS
NPI 1174308126
Physician Assistant in Boston, MA

Active since August 29, 2023PECOS EnrolledAccepts Medicare Assignment
360 HUNTINGTON AVE, BOSTON, MA 02115(617) 393-2000 Get Directions Write a Review

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

About Gregory Dennis Hollis NPPES

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

GREGORY DENNIS HOLLIS (NPI 1174308126) is an individual physician assistant in Boston, Massachusetts and active in the NPI registry since August 2023. He is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1174308126
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameGREGORY DENNIS HOLLIS
Location Address360 HUNTINGTON AVEBoston, MA 02115-5005
Mailing Address2818 Pomeroy Rd Se Apt 2Washington, DC 20020-5929 · (202) 651-1464
Phone(617) 393-2000
Sole ProprietorYes
Medical School CMSOtherGraduated 2024
Enumeration DateAugust 29, 2023
NPPES CertifiedAugust 29, 2023
✔ NPI 1174308126 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
360 HUNTINGTON AVE, Boston, MA 02115
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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

Gregory Dennis Hollis 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 ID2961932967
PECOS Enrollment IDI20250205003876
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02115 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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
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.

HALEY D'ANGELO
Student in an Organized Health Care Education/Training Program
360 HUNTINGTON AVE
BOSTON, MA 02115
Suffolk County (617) 373-2000
SARAH W BRIGHAM
Physician Assistant (Medical)
360 HUNTINGTON AVE
BOSTON, MA 02115
Suffolk County (617) 373-2000
DR. DAVID PAUL ZGARRICK R.PH., PH.D.
Pharmacist
360 HUNTINGTON AVE, NORTHEASTERN UNIVERSITY SCHOOL OF PHARMACY
BOSTON, MA 02115
Suffolk County (617) 373-4664
SANTIAGO ALVA
Physician Assistant
360 HUNTINGTON AVE
BOSTON, MA 02115
Suffolk County (617) 373-2000
MS. NICOLE M ARONSON STUDENT
Student in an Organized Health Care Education/Training Program
360 HUNTINGTON AVE
BOSTON, MA 02115
Suffolk County (617) 373-3195
CASSANDRA FARIA
Student in an Organized Health Care Education/Training Program
360 HUNTINGTON AVE
BOSTON, MA 02115
Suffolk County (617) 373-3195
CAROLINE SQUIZZERO
Student in an Organized Health Care Education/Training Program
360 HUNTINGTON AVE
BOSTON, MA 02115
Suffolk County (401) 603-6233
ELLICE SANTANGELO
Physician Assistant
360 HUNTINGTON AVE
BOSTON, MA 02115
Suffolk County (617) 373-2000

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 Gregory Hollis's NPI number?

The NPI number for Gregory Hollis is 1174308126. It was assigned to this individual provider in the NPPES registry on August 29, 2023.

Where is Gregory Hollis located?

Gregory Hollis practices at 360 Huntington Ave, Boston, MA 02115. The listed phone number is (617) 393-2000.

What is Gregory Hollis's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Gregory Hollis enrolled in Medicare?

Yes. Gregory Hollis 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.

When was this NPI record last updated?

The NPPES record for Gregory Hollis was last updated on August 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.