Sovereign Medical Group LLC
NPI 1669761110 · Radiation Oncology Physician · Hackensack, NJ
Sovereign Medical Group LLC is a Radiation Oncology Physician organization in Hackensack, NJ (NPI 1669761110).
Provider details
- NPI number
- 1669761110
- Entity type
- Organization
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Parent organization
- Sovereign Medical Group LLC
- Organization subpart
- Yes
- Authorized official
- Donald Vardaro, Administrative Director(201) 880-7580
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Hackensack Radiation Therapy LLC
Registry dates
- Enumerated
- 2011-04-06
- Last updated
- 2011-06-09
Frequently asked questions
- What is Sovereign Medical Group LLC's NPI number?
- Sovereign Medical Group LLC's National Provider Identifier (NPI) is 1669761110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Sovereign Medical Group LLC?
- Sovereign Medical Group LLC is classified in the NPPES registry as Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Sovereign Medical Group LLC located?
- Sovereign Medical Group LLC's practice location on file with NPPES is 20 Woodridge Ave, Hackensack, NJ 07601-6013.
- What is Sovereign Medical Group LLC's phone number?
- The practice phone number listed in the NPPES registry for Sovereign Medical Group LLC is (201) 880-7580.
- Who is the authorized official for Sovereign Medical Group LLC?
- The authorized official listed on Sovereign Medical Group LLC's NPPES record is Donald Vardaro, Administrative Director. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Sovereign Medical Group LLC's NPI active?
- Yes — Sovereign Medical Group LLC's NPI (1669761110) is active in the NPPES registry as of the last update on 2011-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.