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DR. JULIE ROMBAUT O'CONNOR M.D.
NPI 1528389863
Family Medicine in Lowell, MA

Active since June 22, 2010PECOS Enrolled
1081 VARNUM AVE, LOWELL, MA 01854(978) 427-6810(978) 427-6887 Get Directions Write a Review

NPPES record last updated: January 15, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Julie Rombaut O'connor M.d. NPPES

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

DR. JULIE ROMBAUT O'CONNOR M.D. (NPI 1528389863) is an individual family medicine provider in Lowell, Massachusetts, licensed in Massachusetts (257149) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1528389863
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. JULIE ROMBAUT O'CONNORCredential: M.D.
Location Address1081 VARNUM AVELowell, MA 01854
Mailing Address1081 Varnum AveLowell, MA 01854 · (978) 427-6810 · Fax (978) 427-6887
Phone(978) 427-6810
Fax(978) 427-6887
Sole ProprietorNo
Enumeration DateJune 22, 2010
Last NPPES UpdateJanuary 15, 2020
✔ NPI 1528389863 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in MA · 257149✔ Licensed in RI · LP01908
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1081 VARNUM AVE, Lowell, MA 01854
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Other Names 1

Former Name (1)Dr. Julie Rombaut M.d.

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Julie Rombaut O'connor M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Julie O'connor reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hallmark Health Medical Associates Inc
20 mi
Family Medicine
170 GOVERNORS AVE, ATTN: PROVIDER ENROLLMENT
Medford, MA 02155
  • Reassigned Medicare billing, Massachusetts enrollment
  • 246 clinicians in this Medicare group
NPI 1770563900 (781) 338-7521

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 01854 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
$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 4

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

DR. DAVID H TSAI M.D.
Internal Medicine (Geriatric Medicine)
1081 VARNUM AVE
LOWELL, MA 01854
Middlesex County (978) 427-6810
SARA RILEY OTR/L
Occupational Therapist
1081 VARNUM AVE
LOWELL, MA 01854
Middlesex County (978) 427-6810
KAREN ANNE MAY RD; LDN
Dietitian, Registered
1081 VARNUM AVE
LOWELL, MA 01854
Middlesex County (978) 427-6810
BRITTANY COLLINS
Nurse Practitioner (Family)
1081 VARNUM AVE
LOWELL, MA 01854
Middlesex County (978) 427-6810

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 Julie O'connor's NPI number?

The NPI number for Julie O'connor is 1528389863. It was assigned to this individual provider in the NPPES registry on June 22, 2010. The provider is also known as Dr. Julie Rombaut M.D..

Where is Julie O'connor located?

Julie O'connor practices at 1081 Varnum Ave, Lowell, MA 01854. The listed phone number is (978) 427-6810.

What is Julie O'connor's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Julie O'connor enrolled in Medicare?

Yes. Julie O'connor is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Julie O'connor's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Julie O'connor reassigns Medicare benefits to Hallmark Health Medical Associates Inc (Medford, 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 Julie O'connor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Julie O'connor was last updated on January 15, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.