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DR. AARON JOSEPH GREENBERG MD
NPI 1609127869
Orthopaedic Surgery - Orthopaedic Surgery of the Spine in Union, NJ

Active since September 27, 2012PECOS EnrolledAccepts Medicare Assignment
2500 MORRIS AVE STE 220, UNION, NJ 07083(732) 906-9600(732) 377-0393 Get Directions Write a Review

NPPES record last updated: April 23, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 23, 2026, Apr 3, 2025, Mar 4, 2025 and 8 more (11 updates tracked since 2017).

About Dr. Aaron Joseph Greenberg Md NPPES

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

DR. AARON JOSEPH GREENBERG MD (NPI 1609127869) is an individual orthopaedic surgery of the spine provider in Union, New Jersey, licensed in New Jersey (25MA10155500) and active in the NPI registry since September 2012. He is enrolled in Medicare PECOS, maintains 4 additional practice locations, and is a graduate of Texas Tech University Health Science Center School Of Medicine (2009).

NPPES Registry Identity

NPI1609127869
Entity TypeIndividualMale
Primary Taxonomy207XS0117X
Provider Legal NameDR. AARON JOSEPH GREENBERGCredential: MD
Location Address2500 MORRIS AVE STE 220Union, NJ 07083-5675
Mailing Address90 Matawan Rd Ste 302Matawan, NJ 07747-2653 · (732) 441-7177 · Fax (732) 441-7165
Phone(732) 906-9600
Fax(732) 377-0393
Sole ProprietorNo
Medical School CMSTexas Tech University Health Science Center School Of MedicineGraduated 2009
Enumeration DateSeptember 27, 2012
Last NPPES UpdateApril 23, 202611 updates tracked since enumeration
NPPES CertifiedApril 23, 2026
✔ NPI 1609127869 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Orthopaedic Surgery of the SpineAllopathic & Osteopathic Physicians
Taxonomy Code207XS0117X
Licenses✔ Licensed in NJ · 25MA10155500✔ Licensed in NY · 307459
Definition
Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic surgeons of the spine deal with the evaluation and nonoperative and operative treatment of the full spectrum of primary spinal disorders including trauma, degenerative, deformity, tumor, and reconstructive.
Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License 25MA10155500 (NJ), 307459 (NY)
2500 MORRIS AVE STE 220, Union, NJ 07083
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Secondary Practice Locations 4

Location 13535 Quakerbridge Rd Ste 200Hamilton, NJ 08619-1200 · Phone (732) 906-9600 · Fax (732) 377-0393
Location 2146 N State Rt 17 Ste 2Hackensack, NJ 07601-1071 · Phone (732) 906-9600 · Fax (833) 974-2196
Location 310 Parsonage Rd Ste 208Edison, NJ 08837-2429 · Phone (732) 906-9600 · Fax (732) 377-0393
Location 41400 Route 70 ECherry Hill, NJ 08034-2240 · Phone (732) 906-9600 · Fax (732) 377-0393

Accepted Insurance

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

Dr. Aaron Joseph Greenberg 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 ID6406072461
PECOS Enrollment IDI20170921003685
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 Reassignments

2

Medicare enrollment records show Aaron Greenberg reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Freeman Pain Institute PA
Same address
Physical Medicine & Rehabilitation
2500 MORRIS AVE STE 220
Union, NJ 07083
  • Reassigned Medicare billing, New Jersey enrollment
  • 13 clinicians in this Medicare group
NPI 1689770539 (732) 906-9600
Premier Brain And Spine, LLC
Same address
Neurological Surgery
2500 MORRIS AVE STE 220
Union, NJ 07083
  • Reassigned Medicare billing, New Jersey enrollment
  • 107 clinicians in this Medicare group
NPI 1922771377 (738) 906-9600

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

Other Providers at the Same Location NPPES 6

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

DEAN BARONE PA-C
Physician Assistant (Surgical)
2500 MORRIS AVE STE 220
UNION, NJ 07083
Union County (723) 906-9600
DR. PHILIP CERAULO DO
Physical Medicine & Rehabilitation
2500 MORRIS AVE STE 220
UNION, NJ 07083
Union County (732) 906-9600
PREMIER BRAIN AND SPINE, LLC
Durable Medical Equipment & Medical Supplies
2500 MORRIS AVE STE 220
UNION, NJ 07083
Union County (732) 906-9600
HNM PRO LLC
Specialist/Technologist, Other (Electroneurodiagnostic)
2500 MORRIS AVE STE 220
UNION, NJ 07083
Union County (732) 441-7177
FREEMAN PAIN INSTITUTE PA
Physical Medicine & Rehabilitation
2500 MORRIS AVE STE 220
UNION, NJ 07083
Union County (732) 906-9600
PREMIER BRAIN AND SPINE, LLC
Neurological Surgery
2500 MORRIS AVE STE 220
UNION, NJ 07083
Union County (738) 906-9600

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 Aaron Greenberg's NPI number?

The NPI number for Aaron Greenberg is 1609127869. It was assigned to this individual provider in the NPPES registry on September 27, 2012.

Where is Aaron Greenberg located?

Aaron Greenberg practices at 2500 Morris Ave Ste 220, Union, NJ 07083. The listed phone number is (732) 906-9600.

What is Aaron Greenberg's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Orthopaedic Surgery of the Spine, with taxonomy code 207XS0117X.

Is Aaron Greenberg enrolled in Medicare?

Yes. Aaron Greenberg 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 Aaron Greenberg's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Greenberg reassigns Medicare benefits to 2 organizations: Freeman Pain Institute PA (Union, NJ) and Premier Brain And Spine, LLC (Union, NJ). 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 Aaron Greenberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Aaron Greenberg accept?

Health plans from Oscar Health list Aaron Greenberg 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.

When was this NPI record last updated?

The NPPES record for Aaron Greenberg was last updated on April 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.