SIOBHAN M CASE MD, MHS
NPI 1770901639
Internal Medicine - Rheumatology in Boston, MA

Active since March 28, 2014PECOS EnrolledAccepts Medicare Assignment
75 FRANCIS ST, BOSTON, MA 02115(617) 732-5500 Get Directions Write a Review

NPPES record last updated: May 25, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Siobhan M Case Md, Mhs NPPES

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

SIOBHAN M CASE MD, MHS (NPI 1770901639) is an individual rheumatology provider in Boston, Massachusetts, licensed in Massachusetts (271300) and active in the NPI registry since March 2014. She is enrolled in Medicare PECOS, is affiliated with Brigham And Women's Hospital, and maintains a secondary practice location in Boston.

NPPES Registry Identity

NPI1770901639
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NameSIOBHAN M CASECredential: MD, MHS
Location Address75 FRANCIS STBoston, MA 02115-6110
Mailing Address75 Francis StBoston, MA 02115-6110 · (617) 732-5500
Sole ProprietorNo
Medical School CMSYale University School Of MedicineGraduated 2014
Enumeration DateMarch 28, 2014
Last NPPES UpdateMay 25, 2022
NPPES CertifiedMay 25, 2022
NPI 1770901639 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License Licensed in MA · 271300
Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

Also ListedPediatricsTaxonomy 208000000X · License 271300 (MA)
75 FRANCIS ST, Boston, MA 02115

Secondary Practice Location 1

Location 1300 Longwood AveBoston, MA 02115-5737 · Phone (617) 355-6000

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

Siobhan M Case Md, Mhs 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 ID5890017479
PECOS Enrollment IDI20220504002406
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.

Hospital Affiliations CMS Care Compare

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

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 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
$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.

Internal Medicine (Pulmonary Disease)
75 FRANCIS ST, BRIGHAM & WOMEN'S HOSPITAL, PULMONARY & CRITICAL CARE
BOSTON, MA 02115
Anesthesiology
75 FRANCIS ST, DEPARTMENT OF ANESTHESIOLOGY CWN L2
BOSTON, MA 02115
Physician Assistant
75 FRANCIS ST
BOSTON, MA 02115
Radiology (Diagnostic Radiology)
75 FRANCIS ST
BOSTON, MA 02115
Psychiatry & Neurology (Psychiatry)
75 FRANCIS ST
BOSTON, MA 02115
Radiology (Diagnostic Radiology)
75 FRANCIS ST, RADIOLOGY, BRIGHAM AND WOMEN'S HOSPITAL
BOSTON, MA 02115
Internal Medicine (Pulmonary Disease)
75 FRANCIS ST, PULMONARY DIVISION BRIGHAM AND WOMEN'S HOSPITAL
BOSTON, MA 02115
Radiology (Vascular & Interventional Radiology)
75 FRANCIS ST, RADIOLOGY, BRIGHAM AND WOMEN'S HOSPITAL
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 Siobhan Case's NPI number?

The NPI number for Siobhan Case is 1770901639. It was assigned to this individual provider in the NPPES registry on March 28, 2014.

Where is Siobhan Case located?

Siobhan Case practices at 75 Francis St, Boston, MA 02115. The listed phone number is (617) 732-5500.

What is Siobhan Case's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Siobhan Case enrolled in Medicare?

Yes. Siobhan Case 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.

Is Siobhan Case affiliated with any hospitals?

According to CMS data, Siobhan Case is affiliated with Brigham And Women's Hospital.

When was this NPI record last updated?

The NPPES record for Siobhan Case was last updated on May 25, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.