DR. ALISON GRUBER MD
NPI 1083243828
Obstetrics & Gynecology in New York, NY
About Dr. Alison Gruber Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALISON GRUBER MD (NPI 1083243828) is an individual obstetrics & gynecology provider in New York, New York, licensed in New York (329922) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and is a graduate of Drexel University College Of Medicine (2020).
NPPES Registry Identity
Specialties & Licenses 2
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. Alison Gruber Md 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 Alison Gruber reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 3,922 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
New York-Presbyterian Hospital
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10034 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10034
NEW YORK, NY 10034
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 Alison Gruber's NPI number?
The NPI number for Alison Gruber is 1083243828. It was assigned to this individual provider in the NPPES registry on April 3, 2020.
Where is Alison Gruber located?
Alison Gruber practices at 5141 Broadway, New York, NY 10034. The listed phone number is (212) 932-4200.
What is Alison Gruber's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Alison Gruber enrolled in Medicare?
Yes. Alison Gruber 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 Alison Gruber's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alison Gruber reassigns Medicare benefits to Trustees Of Columbia University In The City Of New York (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 Alison Gruber's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alison Gruber affiliated with any hospitals?
According to CMS data, Alison Gruber is affiliated with New York-Presbyterian Hospital.
When was this NPI record last updated?
The NPPES record for Alison Gruber was last updated on August 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Alison Gruber, MD · NPI 1083243828
Obstetrics & Gynecology physician in New York, New York. Individual provider, active in the CMS NPPES registry since April 3, 2020.
## Identity
- **NPI:** 1083243828 (Entity type: Individual)
- **Enumerated:** April 3, 2020
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 329922 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 5141 BROADWAY, New York, NY 10034-1159
- **Phone:** (212) 932-4200
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Trustees Of Columbia University In The City Of New York (NPI 1508266347, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Drexel University College Of Medicine, class of 2020
## Record status
- **NPPES last updated:** August 17, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1083243828) · Data from the CMS NPPES public registry.