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ASSAF, INC
NPI 1841760295
Internal Medicine - Sleep Medicine in Auburn, MA

Active since November 28, 2018
48 AUBURN ST STE 1, AUBURN, MA 01501(512) 744-3860 Get Directions Write a Review

NPPES record last updated: February 3, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 3, 2021, Nov 28, 2018 (2 updates tracked since 2018).

About Assaf, Inc NPPES

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

ASSAF, INC (NPI 1841760295) is a healthcare organization registered as a sleep medicine in Auburn, Massachusetts and active in the NPI registry since November 2018. The organization lists Emily Cover, Credentialing Specialist, as its authorized official.

NPPES Registry Identity

NPI1841760295
Entity TypeOrganization
Primary Taxonomy207RS0012X
Legal Business NameASSAF, INC
Location Address48 AUBURN ST STE 1Auburn, MA 01501-2438
Mailing Address48 Auburn St Ste 1Auburn, MA 01501-2438 · (774) 772-7058 · Fax (774) 772-7059
Phone(512) 744-3860
Organization SubpartNo
Authorized OfficialEmily CoverCredentialing Specialist · (774) 772-7058
Enumeration DateNovember 28, 2018
Last NPPES UpdateFebruary 3, 20212 updates tracked since enumeration
NPPES CertifiedFebruary 3, 2021
✔ NPI 1841760295 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RS0012X
Definition
An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.
48 AUBURN ST STE 1, Auburn, MA 01501
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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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Assaf, Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Assaf, Inc, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (3)

Wassim Assaf, MD
Internal Medicine
NPI 1548400278
48 AUBURN ST STE 1
Auburn, MA 01501
(774) 772-7058
✔ PECOS✔ Accepts MedicareSame address
Anthony Izzo, D.O.
Neurology
NPI 1215198692
123 SUMMER ST STE 660
Worcester, MA 01608
(508) 363-9030
✔ PECOS✔ Accepts Medicare4.4 mi
Mushtaque Chachar, MD
Psychiatry
NPI 1891903712
101 PAGE ST
New Bedford, MA 02740
(508) 973-9180
✔ PECOS✔ Accepts Medicare61 mi

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 Assaf, Inc's NPI number?

The NPI number for Assaf, Inc is 1841760295. It was assigned to this organization in the NPPES registry on November 28, 2018.

Where is Assaf, Inc located?

Assaf, Inc is located at 48 Auburn St Ste 1, Auburn, MA 01501. The listed phone number is (512) 744-3860.

What is Assaf, Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Is Assaf, Inc enrolled in Medicare?

Yes. Assaf, Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Assaf, Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Assaf, Inc, in Internal Medicine, Neurology and Psychiatry. 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, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Assaf, Inc accept?

Health plans from Anthem Blue Cross and Blue Shield list Assaf, Inc 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 Assaf, Inc was last updated on February 3, 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.