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DR. MICHAEL SHWARTZSTEIN D.C.
NPI 1013194463
Chiropractor in Port Washington, NY

Active since January 29, 2008
12 IRMA AVENUE, PORT WASHINGTON, NY 11050(516) 944-4469(516) 944-9644 Get Directions Write a Review

NPPES record last updated: March 29, 2010. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Michael Shwartzstein D.c. NPPES

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

DR. MICHAEL SHWARTZSTEIN D.C. (NPI 1013194463) is an individual chiropractor in Port Washington, New York, licensed in New York (X008048-1) and active in the NPI registry since January 2008. He is a graduate of Life Chiropractic College - West (1995).

NPPES Registry Identity

NPI1013194463
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameDR. MICHAEL SHWARTZSTEINCredential: D.C.
Location Address12 IRMA AVENUEPort Washington, NY 11050
Mailing Address12 Irma AvenuePort Washington, NY 11050 · (516) 944-4469 · Fax (516) 944-9644
Phone(516) 944-4469
Fax(516) 944-9644
Sole ProprietorYes
Medical School CMSLife Chiropractic College - WestGraduated 1995
Enumeration DateJanuary 29, 2008
Last NPPES UpdateMarch 29, 2010
✔ NPI 1013194463 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in NY · X008048-1
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
12 IRMA AVENUE, Port Washington, NY 11050
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Michael Shwartzstein D.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5395234439
PECOS Enrollment IDI20251029003521

Medicare Billing Reassignment

Medicare enrollment records show Michael Shwartzstein reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Robyn Croutch D C P C
1.7 mi
Chiropractor
8 HAVEN AVE STE 223
Port Washington, NY 11050
  • Reassigned Medicare billing, New York enrollment
  • 2 clinicians in this Medicare group
NPI 1063740215 (516) 754-7118

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

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

DR. ROBYN P CROUTCH D.C.
Chiropractor
12 IRMA AVENUE
PORT WASHINGTON, NY 11050
Nassau County (516) 944-4469

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 Michael Shwartzstein's NPI number?

The NPI number for Michael Shwartzstein is 1013194463. It was assigned to this individual provider in the NPPES registry on January 29, 2008.

Where is Michael Shwartzstein located?

Michael Shwartzstein practices at 12 Irma Avenue, Port Washington, NY 11050. The listed phone number is (516) 944-4469.

What is Michael Shwartzstein's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Michael Shwartzstein enrolled in Medicare?

Yes. Michael Shwartzstein is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Michael Shwartzstein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Shwartzstein reassigns Medicare benefits to Robyn Croutch D C P C (Port Washington, NY). The 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 Michael Shwartzstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Michael Shwartzstein was last updated on March 29, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.