ALLEN REZA NAU D.O.
NPI 1669631404
Emergency Medicine in Freehold, NJ
About Allen Reza Nau D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLEN REZA NAU D.O. (NPI 1669631404) is an individual emergency medicine provider in Freehold, New Jersey, licensed in New Jersey (MB09196700) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with Hca Florida Citrus Hospital, and is a graduate of Other (2008).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted 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
Allen Reza Nau D.o. 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
12Medicare enrollment records show Allen Nau reassigns Medicare billing to 12 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Freehold, NJ 07728
- Reassigned Medicare billing, New Jersey enrollment
- 123 clinicians in this Medicare group
Freehold, NJ 07728
- Reassigned Medicare billing, New Jersey enrollment
- 39 clinicians in this Medicare group
Summit, NJ 07901
- Reassigned Medicare billing, New Jersey enrollment
- 436 clinicians in this Medicare group
Manahawkin, NJ 08050
- Reassigned Medicare billing, New Jersey enrollment
- 239 clinicians in this Medicare group
Secaucus, NJ 07094
- Reassigned Medicare billing, New Jersey enrollment
- 74 clinicians in this Medicare group
Voorhees, NJ 08043
- Reassigned Medicare billing, New Jersey enrollment
- 332 clinicians in this Medicare group
Dover, DE 19901
- Reassigned Medicare billing, Delaware enrollment
- 84 clinicians in this Medicare group
Dover, DE 19901
- Reassigned Medicare billing, Delaware enrollment
- 142 clinicians in this Medicare group
Winter Haven, FL 33881
- Reassigned Medicare billing, Florida enrollment
- 1,065 clinicians in this Medicare group
Aventura, FL 33180
- Reassigned Medicare billing, Florida enrollment
- 1,912 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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hca Florida Citrus Hospital
Acute Care Hospitals · Inverness, FLHca Florida Sarasota Doctors Hospital
Acute Care Hospitals · Sarasota, FLWest Jersey Hospital
Acute Care Hospitals · Voorhees, NJRiverview Medical Center
Acute Care Hospitals · Red Bank, NJCentrastate Medical Center
Acute Care Hospitals · Freehold, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07728 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FREEHOLD, NJ 07728
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 Allen Nau's NPI number?
The NPI number for Allen Nau is 1669631404. It was assigned to this individual provider in the NPPES registry on June 6, 2008.
Where is Allen Nau located?
Allen Nau practices at 901 W Main St, Freehold, NJ 07728. The listed phone number is (732) 431-2000.
What is Allen Nau's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Allen Nau enrolled in Medicare?
Yes. Allen Nau 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 Allen Nau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allen Nau reassigns Medicare benefits to 12 organizations: Morristown Emergency Medical Associates LLC (Freehold, NJ), Central Jersey Emergency Medicine Associates, PC (Freehold, NJ), Emergency Physician Associates Of North Jersey P C (Summit, NJ), Barron Emergency Physicians LLC (Manahawkin, NJ), Stadium Emergency Associates (Secaucus, NJ) and 7 more organizations, listed in the Medicare section above. 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 Allen Nau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Allen Nau accept?
Health plans from Oscar Health and Oscar Health Maintenance Organization of Florida list Allen Nau 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 Allen Nau affiliated with any hospitals?
According to CMS data, Allen Nau is affiliated with Hca Florida Citrus Hospital, Hca Florida Sarasota Doctors Hospital, West Jersey Hospital, Riverview Medical Center and Centrastate Medical Center.
When was this NPI record last updated?
The NPPES record for Allen Nau was last updated on May 11, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Allen Reza Nau, D.O. · NPI 1669631404
Emergency Medicine physician in Freehold, New Jersey. Individual provider, active in the CMS NPPES registry since June 6, 2008.
## Identity
- **NPI:** 1669631404 (Entity type: Individual)
- **Enumerated:** June 6, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MB09196700 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 901 W MAIN ST, Freehold, NJ 07728-2537
- **Phone:** (732) 431-2000
## 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:** 12 organizations under Medicare reassignment (form CMS-855R): Morristown Emergency Medical Associates LLC (NPI 1649541087, Freehold, NJ); Central Jersey Emergency Medicine Associates, PC (NPI 1538106257, Freehold, NJ); Emergency Physician Associates Of North Jersey P C (NPI 1497783419, Summit, NJ); Barron Emergency Physicians LLC (NPI 1790736940, Manahawkin, NJ); Stadium Emergency Associates (NPI 1205293693, Secaucus, NJ); and 7 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** May 11, 2023
- **Other identifiers:** Medicaid 0351270 (NJ)
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Source: [NPI Profile](https://npiprofile.com/npi/1669631404) · Data from the CMS NPPES public registry.