DR. GREGG DANIEL RUBINSTEIN D.C.
NPI 1003984584
Chiropractor in New York, NY
About Dr. Gregg Daniel Rubinstein D.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGG DANIEL RUBINSTEIN D.C. (NPI 1003984584) is an individual chiropractor in New York, New York, licensed in New York (X006885-1) and active in the NPI registry since December 2006. He is a graduate of New York Chiropractic College (1991).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 7
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. Gregg Daniel Rubinstein D.c. 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.
Medicare Billing Reassignment
Medicare enrollment records show Gregg Rubinstein reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10019
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: 57th Street Chiropractic PC
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
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 Gregg Rubinstein's NPI number?
The NPI number for Gregg Rubinstein is 1003984584. It was assigned to this individual provider in the NPPES registry on December 1, 2006.
Where is Gregg Rubinstein located?
Gregg Rubinstein practices at 225 W 57th St Ste 403, New York, NY 10019. The listed phone number is (212) 977-7094.
What is Gregg Rubinstein's specialty?
The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.
Is Gregg Rubinstein enrolled in Medicare?
Yes. Gregg Rubinstein 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 organization bills Medicare for Gregg Rubinstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregg Rubinstein reassigns Medicare benefits to 57th Street Chiropractic, P.C. (New York, 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 Gregg Rubinstein'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 Gregg Rubinstein was last updated on May 20, 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.
# Dr. Gregg Daniel Rubinstein, D.C. · NPI 1003984584
Chiropractor provider in New York, New York. Individual provider, active in the CMS NPPES registry since December 1, 2006.
## Identity
- **NPI:** 1003984584 (Entity type: Individual)
- **Enumerated:** December 1, 2006
- **Primary specialty:** Chiropractor · taxonomy 111N00000X
- **State license:** X006885-1 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 225 W 57TH ST STE 403, New York, NY 10019-2136
- **Phone:** (212) 977-7094 · **Fax:** (212) 489-3588
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 57th Street Chiropractic, P.C. (NPI 1609938943, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York Chiropractic College, class of 1991
## Record status
- **NPPES last updated:** May 20, 2008
- **Other identifiers:** Other X8H05 (NY); Other 050006885NY01 (NY); Other 5897494 (NY); and 4 more
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Source: [NPI Profile](https://npiprofile.com/npi/1003984584) · Data from the CMS NPPES public registry.