Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MIDSTATE RHEUMATOLOGY CENTER
NPI 1164587283
Internal Medicine - Rheumatology in Freehold, NJ

Q: What is Midstate Rheumatology Center's NPI number?

The NPI number for Midstate Rheumatology Center is 1164587283. It was assigned to this organization in the NPPES registry on December 27, 2006.

Q: What is Midstate Rheumatology Center's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Active since December 27, 2006

900 W MAIN ST STE 5, FREEHOLD, NJ 07728(732) 431-4335(732) 431-4771 Get Directions Write a Review

NPPES record last updated: August 28, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 28, 2026, Aug 22, 2020 (2 updates tracked since 2020).

On this page

About Midstate Rheumatology Center NPPES

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

MIDSTATE RHEUMATOLOGY CENTER (NPI 1164587283) is a healthcare organization registered as a rheumatology in Freehold, New Jersey and active in the NPI registry since December 2006. The organization lists Sawsan Najmey, Physician, as its authorized official.

NPPES Registry Identity

NPI1164587283

Entity TypeOrganization

Primary Taxonomy207RR0500X

Legal Business NameMIDSTATE RHEUMATOLOGY CENTER

Location Address900 W MAIN ST STE 5Freehold, NJ 07728-2523

Mailing AddressPo Box 7378Freehold, NJ 07728-7378 · (732) 431-4335 · Fax (732) 431-4771

Phone(732) 431-4335

Fax(732) 431-4771

Organization SubpartNo

Authorized OfficialSawsan NajmeyPhysician · (732) 431-4335

Enumeration DateDecember 27, 2006

Last NPPES UpdateAugust 28, 20262 updates tracked since enumeration

NPPES CertifiedAugust 28, 2026

✔ NPI 1164587283 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians

Taxonomy Code207RR0500X

Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

900 W MAIN ST STE 5, Freehold, NJ 07728

Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Midstate Rheumatology Center is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 2 clinicians reassign Medicare billing to Midstate Rheumatology Center, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Ghadeer Hasan, MD

Rheumatology

NPI 1811427685

900 W MAIN ST STE 5
Freehold, NJ 07728

(732) 431-4335

✔ PECOS✔ Accepts MedicareSame address

Sawsan Najmey, MD

Rheumatology

NPI 1225118086

900 W MAIN ST STE 5
Freehold, NJ 07728

(732) 431-4335

✔ PECOS✔ Accepts MedicareSame address

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

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 Midstate Rheumatology Center's NPI number?

The NPI number for Midstate Rheumatology Center is 1164587283. It was assigned to this organization in the NPPES registry on December 27, 2006.

Where is Midstate Rheumatology Center located?

Midstate Rheumatology Center is located at 900 W Main St Ste 5, Freehold, NJ 07728. The listed phone number is (732) 431-4335.

What is Midstate Rheumatology Center's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Midstate Rheumatology Center enrolled in Medicare?

Yes. Midstate Rheumatology Center is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Midstate Rheumatology Center?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Rheumatology, reassign their Medicare billing to Midstate Rheumatology Center. A 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 the clinician's services. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Midstate Rheumatology Center was last updated on August 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 days 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.