CONNOR O'NEILL-DEE MD
NPI 1194301051
Internal Medicine - Nephrology in Boston, MA

Q: What is Connor O'neill-dee's NPI number?

The NPI number for Connor O'neill-dee is 1194301051. It was assigned to this individual provider in the NPPES registry on March 22, 2021.

Q: What is Connor O'neill-dee's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Active since March 22, 2021PECOS EnrolledAccepts Medicare Assignment

725 ALBANY STREET, SUITE 8C, SHAPIRO BLDG, BOSTON, MA 02118(617) 414-8680(617) 414-8664 Get Directions Write a Review

NPPES record last updated: July 10, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 10, 2026, Mar 23, 2021 (2 updates tracked since 2021).

On this page

About Connor O'neill-dee Md NPPES

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

CONNOR O'NEILL-DEE MD (NPI 1194301051) is an individual nephrology provider in Boston, Massachusetts, licensed in Massachusetts (1023230) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Boston Medical Center, and is a graduate of Creighton University School Of Medicine (2021).

NPPES Registry Identity

NPI1194301051

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameCONNOR O'NEILL-DEECredential: MD

Location Address725 ALBANY STREET, SUITE 8C, SHAPIRO BLDGBoston, MA 02118-2526

Mailing Address960 Massachusetts Ave Ste 2Boston, MA 02118-2690

Phone(617) 414-8680

Fax(617) 414-8664

Sole ProprietorNo

Medical School CMSCreighton University School Of MedicineGraduated 2021

Enumeration DateMarch 22, 2021

Last NPPES UpdateJuly 10, 20262 updates tracked since enumeration

NPPES CertifiedJuly 10, 2026

✔ NPI 1194301051 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in MA · 1023230

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Also ListedInternal MedicineTaxonomy 207R00000X · License 1023230 (MA)

725 ALBANY STREET, SUITE 8C, Boston, MA 02118

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include WellSense Health Plan.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

Connor O'neill-dee 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 ID9436548807

PECOS Enrollment IDI20260721003683

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 Connor O'neill-dee reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Evans Medical Foundation, Inc.

0.2 mi

Internal Medicine

1 BOSTON MEDICAL CTR PL
Boston, MA 02118

Reassigned Medicare billing, Massachusetts enrollment
573 clinicians in this Medicare group

NPI 1912954124 (617) 358-3510

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

Hospital Affiliations CMS Care Compare

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

Boston Medical Center

Acute Care Hospitals · Boston, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220031

Location1 Boston Medical Center PlaceBoston, MA 02118 · Suffolk County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02118 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 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SAYEED K. MALEK M.D.

Transplant Surgery

725 ALBANY STREET, SUITE 8C, SHAPIRO BLDG.
BOSTON, MA 02118

Suffolk County (617) 638-8430

TIMOTHY JOHN FOKKEN

Surgery

725 ALBANY STREET, SUITE 8C, SHAPIRO BLDG.
BOSTON, MA 02118

Suffolk County (617) 638-8430

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 Connor O'neill-dee's NPI number?

The NPI number for Connor O'neill-dee is 1194301051. It was assigned to this individual provider in the NPPES registry on March 22, 2021.

Where is Connor O'neill-dee located?

Connor O'neill-dee practices at 725 Albany Street, Suite 8C Shapiro Bldg, Boston, MA 02118. The listed phone number is (617) 414-8680.

What is Connor O'neill-dee's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Connor O'neill-dee enrolled in Medicare?

Yes. Connor O'neill-dee 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 Connor O'neill-dee's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Connor O'neill-dee reassigns Medicare benefits to Evans Medical Foundation, Inc. (Boston, MA). 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 Connor O'neill-dee's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Connor O'neill-dee accept?

Health plans from WellSense Health Plan list Connor O'neill-dee 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 Connor O'neill-dee affiliated with any hospitals?

According to CMS data, Connor O'neill-dee is affiliated with Boston Medical Center.

When was this NPI record last updated?

The NPPES record for Connor O'neill-dee was last updated on July 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.