MR. STEPHEN M CAHILL PA-C
NPI 1205995123
Physician Assistant in Worcester, MA

Active since December 06, 2006PECOS EnrolledAccepts Medicare Assignment
97.02/100
CMS Quality Rating
55 LAKE AVENUE NORTH, SICU, WORCESTER, MA 01655(508) 856-1168(508) 856-4224 Get Directions Write a Review

NPPES record last updated: October 30, 2020. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Mr. Stephen M Cahill Pa-c NPPES

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

MR. STEPHEN M CAHILL PA-C (NPI 1205995123) is an individual physician assistant in Worcester, Massachusetts, licensed in Massachusetts (2110) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with Umass Memorial Medical Center/university Campus, and is a graduate of Other (2005).

NPPES Registry Identity

NPI1205995123
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameMR. STEPHEN M CAHILLCredential: PA-C
Location Address55 LAKE AVENUE NORTH, SICUWorcester, MA 01655
Mailing AddressPo Box 415348Boston, MA 02241-0001 · (800) 225-8885 · Fax (508) 334-1977
Fax(508) 856-4224
Sole ProprietorNo
Medical School CMSOtherGraduated 2005
Enumeration DateDecember 6, 2006
Last NPPES UpdateOctober 30, 2020
NPPES CertifiedOctober 30, 2020
NPI 1205995123 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in MA · 2110
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.
55 LAKE AVENUE NORTH, Worcester, MA 01655

Other Identifiers 1

Medicaid110106029AMA

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

Mr. Stephen M Cahill Pa-c 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 ID5890795868
PECOS Enrollment IDI20061226000078
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.

Critical care, each additional 30 minutes 99292
Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.
111 services32 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.
59 services36 patients

Hospital Affiliations CMS Care Compare

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

Umass Memorial Medical Center/University Campus

Acute Care Hospitals · Worcester, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220163
Location55 Lake Avenue NorthWorcester, MA 01655 · Worcester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01655 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
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$73.22 typical visit price
range $19.11 – $144.84
Typical copayment $18.30 (range $4.77 – $36.21)
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.

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.

97.02/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality78.09
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.

Pharmacist
55 LAKE AVENUE NORTH
WORCESTER, MA 01655
Internal Medicine (Hematology & Oncology)
55 LAKE AVENUE NORTH
WORCESTER, MA 01655
Radiology (Diagnostic Radiology)
55 LAKE AVENUE NORTH, DEPARTMENT OF RADIOLOGY
WORCESTER, MA 01655
Student in an Organized Health Care Education/Training Program
55 LAKE AVENUE NORTH
WORCESTER, MA 01655
Thoracic Surgery (Cardiothoracic Vascular Surgery)
55 LAKE AVENUE NORTH, DEPARTMENT OF SURGERY
WORCESTER, MA 01655
Student in an Organized Health Care Education/Training Program
55 LAKE AVENUE NORTH
WORCESTER, MA 01655
Student in an Organized Health Care Education/Training Program
55 LAKE AVENUE NORTH
WORCESTER, MA 01655
Genetic Counselor, MS
55 LAKE AVENUE NORTH, DEPARTMENT OF GENETICS; BENEDICT BUILDING 3RD FLOOR
WORCESTER, MA 01655

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 Stephen Cahill's NPI number?

The NPI number for Stephen Cahill is 1205995123. It was assigned to this individual provider in the NPPES registry on December 6, 2006.

Where is Stephen Cahill located?

Stephen Cahill practices at 55 Lake Avenue North Sicu, Worcester, MA 01655. The listed phone number is (508) 856-1168.

What is Stephen Cahill's specialty?

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

Is Stephen Cahill enrolled in Medicare?

Yes. Stephen Cahill 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 Stephen Cahill accept?

Health plans from Anthem Blue Cross and Blue Shield list Stephen Cahill 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 Stephen Cahill affiliated with any hospitals?

According to CMS data, Stephen Cahill is affiliated with Umass Memorial Medical Center/University Campus.

When was this NPI record last updated?

The NPPES record for Stephen Cahill was last updated on October 30, 2020. NPI Profile syncs with the weekly NPPES data releases published by CMS.