DR. JULIE MICHELLE SIEBEN D.C.
NPI 1396077764
Nurse Practitioner - Gerontology in Dennis, MA
About Dr. Julie Michelle Sieben D.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JULIE MICHELLE SIEBEN D.C. (NPI 1396077764) is an individual gerontology provider in Dennis, Massachusetts, licensed in Massachusetts (RN2311826) and active in the NPI registry since February 2010. She is enrolled in Medicare PECOS, is affiliated with Cape Cod Hospital, and maintains a secondary practice location in Centerville.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Dr. Julie Michelle Sieben D.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.
Medicare Billing Reassignments
4Medicare enrollment records show Julie Sieben reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hyannis, MA 02601
- Reassigned Medicare billing, Massachusetts enrollment
- 423 clinicians in this Medicare group
Hyannis, MA 02601
- Reassigned Medicare billing, Massachusetts enrollment
- 678 clinicians in this Medicare group
Harwich Port, MA 02646
- Reassigned Medicare billing, Massachusetts enrollment
- 51 clinicians in this Medicare group
Centerville, MA 02632
- Reassigned Medicare billing, Massachusetts enrollment
- 3 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.
Areas of Expertise CMS Part B claims 5
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Cape Cod Hospital
Acute Care Hospitals · Hyannis, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02638 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Sieben's NPI number?
The NPI number for Julie Sieben is 1396077764. It was assigned to this individual provider in the NPPES registry on February 9, 2010.
Where is Julie Sieben located?
Julie Sieben practices at 632 Main St, Dennis, MA 02638. The listed phone number is (508) 385-9999.
What is Julie Sieben's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.
Is Julie Sieben enrolled in Medicare?
Yes. Julie Sieben 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 organizations bill Medicare for Julie Sieben's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Julie Sieben reassigns Medicare benefits to 4 organizations: Medical Affiliates Of Cape Cod, Inc. (Hyannis, MA), Physicians Of Cape Cod Hospital (Hyannis, MA), Outer Cape Health Services (Harwich Port, MA) and Cape Chiropractic Group LLC (Centerville, MA). Each 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 Sieben's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Julie Sieben affiliated with any hospitals?
According to CMS data, Julie Sieben is affiliated with Cape Cod Hospital.
When was this NPI record last updated?
The NPPES record for Julie Sieben was last updated on January 11, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Julie Michelle Sieben, D.C. · NPI 1396077764
Gerontology physician in Dennis, Massachusetts. Individual provider, active in the CMS NPPES registry since February 9, 2010.
## Identity
- **NPI:** 1396077764 (Entity type: Individual)
- **Enumerated:** February 9, 2010
- **Primary specialty:** Nurse Practitioner - Gerontology · taxonomy 363LG0600X
- **State license:** RN2311826 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 632 MAIN ST, Dennis, MA 02638
- **Phone:** (508) 385-9999 · **Fax:** (508) 385-4590
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Medical Affiliates Of Cape Cod, Inc. (NPI 1770534927, Hyannis, MA); Physicians Of Cape Cod Hospital (NPI 1679832364, Hyannis, MA); Outer Cape Health Services (NPI 1255629747, Harwich Port, MA); Cape Chiropractic Group LLC (NPI 1427227594, Centerville, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** January 11, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1396077764) · Data from the CMS NPPES public registry.