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ALLA I. NEYSHTADT, M.D., PC..
NPI 1144412396
Internal Medicine - Addiction Medicine in Newton, MA

Active since August 13, 2007CLIA 22D0927125 · Waiver
2000 WASHINGTON ST, BLUE BUILDING, SUITE 420, NEWTON, MA 02462(617) 630-9823(617) 630-4481 Get Directions Write a Review

NPPES record last updated: July 9, 2008. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Alla I. Neyshtadt, M.d., Pc.. NPPES

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

ALLA I. NEYSHTADT, M.D., PC.. (NPI 1144412396) is a healthcare organization registered as an addiction medicine in Newton, Massachusetts and active in the NPI registry since August 2007. The organization holds a CLIA Waiver certificate valid through April 9, 2027 and lists Alla Neyshtadt, Owner, as its authorized official.

NPPES Registry Identity

NPI1144412396
Entity TypeOrganization
Primary Taxonomy207RA0401X
Legal Business NameALLA I. NEYSHTADT, M.D., PC..
Location Address2000 WASHINGTON ST, BLUE BUILDING, SUITE 420Newton, MA 02462-1650
Mailing Address2000 Washington St, Blue Building, Suite 420Newton, MA 02462-1650 · (617) 630-9823 · Fax (617) 630-4481
Phone(617) 630-9823
Fax(617) 630-4481
Organization SubpartNo
Authorized OfficialAlla NeyshtadtOwner · (617) 630-9823
Enumeration DateAugust 13, 2007
Last NPPES UpdateJuly 9, 2008
✔ NPI 1144412396 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Addiction MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RA0401X
License✔ Licensed in MA · 150852
Definition
An internist doctor of osteopathy that specializes in the treatment of addiction disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Added Qualifications in the field of Addiction Medicine.
2000 WASHINGTON ST, Newton, MA 02462
Open in Google Maps ↗

Other Identifiers 2

Medicaid3153380MA
Medicare UPING27106MA

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)

Alla I. Neyshtadt, M.d., Pc.. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Alla I. Neyshtadt, M.D., PC.., which bills Medicare for the services this clinician delivers.

Clinician (1)

Alla Neyshtadt, M.D.
Internal Medicine
NPI 1063576296
2000 WASHINGTON ST BLUE BUILDING, SUITE 420
Newton, MA 02462
(617) 630-9823
✔ 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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 22D0927125

Alla Neyshtadt MD PC · Newton, MA
Active · expires Apr 9, 2027
CLIA Number22D0927125
Laboratory TypePhysician Office
Certificate Effective DateApril 10, 2025
Certificate Expiration DateApril 9, 2027
Laboratory DirectorAlla Neyshtadt MD
Laboratory Phone(617) 630-9823
Laboratory LocationAlla Neyshtadt MD PC2000 Washington Street, Blue Bldg, Suite 420, Newton, MA 02459
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Alla I. Neyshtadt, M.D., PC..'s NPI number?

The NPI number for Alla I. Neyshtadt, M.D., PC.. is 1144412396. It was assigned to this organization in the NPPES registry on August 13, 2007.

Where is Alla I. Neyshtadt, M.D., PC.. located?

Alla I. Neyshtadt, M.D., PC.. is located at 2000 Washington St Blue Building, Suite 420, Newton, MA 02462. The listed phone number is (617) 630-9823.

What is Alla I. Neyshtadt, M.D., PC..'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Addiction Medicine, with taxonomy code 207RA0401X.

Is Alla I. Neyshtadt, M.D., PC.. enrolled in Medicare?

Yes. Alla I. Neyshtadt, M.D., PC.. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Alla I. Neyshtadt, M.D., PC..?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Alla I. Neyshtadt, M.D., PC... 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Alla I. Neyshtadt, M.D., PC.. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 22D0927125) is associated with this NPI, valid through April 9, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Alla I. Neyshtadt, M.D., PC.. was last updated on July 9, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.