Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

RACHEL SILLCOX MD
NPI 1629531637
Surgery in Boston, MA

Active since April 08, 2019PECOS EnrolledAccepts Medicare Assignment
75 FRANCIS ST, BOSTON, MA 02115(978) 882-6883 Get Directions Write a Review

NPPES record last updated: October 12, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 12, 2026, Sep 3, 2025, Apr 8, 2019 (3 updates tracked since 2019).

About Rachel Sillcox Md NPPES

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

RACHEL SILLCOX MD (NPI 1629531637) is an individual surgery provider in Boston, Massachusetts, licensed in Massachusetts (1029058) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS, maintains a secondary practice location in Boston, and is a graduate of Tufts University School Of Medicine (2019).

NPPES Registry Identity

NPI1629531637
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameRACHEL SILLCOXCredential: MD
Location Address75 FRANCIS STBoston, MA 02115-6110
Mailing Address15 Parkman StBoston, MA 02114-3117
Sole ProprietorYes
Medical School CMSTufts University School Of MedicineGraduated 2019
Enumeration DateApril 8, 2019
Last NPPES UpdateOctober 12, 20263 updates tracked since enumeration
NPPES CertifiedOctober 12, 2026
✔ NPI 1629531637 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in MA · 1029058
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
75 FRANCIS ST, Boston, MA 02115

Secondary Practice Location 1

Location 115 Parkman StBoston, MA 02114-3117 · Phone (978) 882-6883

Accepted 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

Rachel Sillcox 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 ID1759898000
PECOS Enrollment IDI20250730002111
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 Reassignment

Medicare enrollment records show Rachel Sillcox reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Clinical Medical Laboratory
720 20TH STREET SOUTH
Birmingham, AL 35294
  • Reassigned Medicare billing, Alabama enrollment
  • 4,494 clinicians in this Medicare group

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

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.

Internal Medicine (Gastroenterology)
75 FRANCIS ST
BOSTON, MA 02115
Neurological Surgery
75 FRANCIS ST
BOSTON, MA 02115
Student in an Organized Health Care Education/Training Program
75 FRANCIS ST
BOSTON, MA 02115
Radiology (Diagnostic Radiology)
75 FRANCIS ST, DEPARTMENT OF RADIOLOGY
BOSTON, MA 02115
Surgery (Vascular Surgery)
75 FRANCIS ST, BRIGHAM AND WOMEN'S HOSPITAL
BOSTON, MA 02115
Emergency Medicine
75 FRANCIS ST, BWH DEPT. OF EMERGENCY MEDICINE
BOSTON, MA 02115
Physician Assistant
75 FRANCIS ST
BOSTON, MA 02115
Nurse Practitioner (Family)
75 FRANCIS ST
BOSTON, MA 02115

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 Rachel Sillcox's NPI number?

The NPI number for Rachel Sillcox is 1629531637. It was assigned to this individual provider in the NPPES registry on April 8, 2019.

Where is Rachel Sillcox located?

Rachel Sillcox practices at 75 Francis St, Boston, MA 02115. The listed phone number is (978) 882-6883.

What is Rachel Sillcox's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Rachel Sillcox enrolled in Medicare?

Yes. Rachel Sillcox 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 organization bills Medicare for Rachel Sillcox's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rachel Sillcox reassigns Medicare benefits to University Of Alabama Health Services Foundation, PC (Birmingham, AL). The 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 Rachel Sillcox's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Rachel Sillcox accept?

Health plans from Ambetter Health, Ambetter of Alabama, Ambetter of Tennessee and Blue Cross and Blue Shield of Alabama list Rachel Sillcox 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.

When was this NPI record last updated?

The NPPES record for Rachel Sillcox was last updated on October 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 days 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.