MARIA TERESA GRUBMAN FAMILY NP
NPI 1003469032
Nurse Practitioner - Family in Bay Shore, NY
About Maria Teresa Grubman Family Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIA TERESA GRUBMAN FAMILY NP (NPI 1003469032) is an individual family provider in Bay Shore, New York, licensed in New York (F3440191) and active in the NPI registry since July 2019. She is enrolled in Medicare PECOS, is affiliated with Long Island Jewish Medical Center, and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
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
Maria Teresa Grubman Family Np 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 Reassignments
3Medicare enrollment records show Maria Grubman reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
West Sayville, NY 11796
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Chs Physician Partners PC
- 944 clinicians in this Medicare group
New Hyde Park, NY 11042
- Reassigned Medicare billing, New York enrollment
- 198 clinicians in this Medicare group
New Hyde Park, NY 11040
- Reassigned Medicare billing, New York enrollment
- 9,353 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.
Long Island Jewish Medical Center
Acute Care Hospitals · New Hyde Park, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11706 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Maria Grubman's NPI number?
The NPI number for Maria Grubman is 1003469032. It was assigned to this individual provider in the NPPES registry on July 18, 2019.
Where is Maria Grubman located?
Maria Grubman practices at 440 E Main Street, Bay Shore, NY 11706. The listed phone number is (631) 414-6999.
What is Maria Grubman's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Maria Grubman enrolled in Medicare?
Yes. Maria Grubman 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 organizations bill Medicare for Maria Grubman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maria Grubman reassigns Medicare benefits to 3 organizations: Chs Physician Partners, P.C (West Sayville, NY), North Shore Health System Medical Faculty Group Practice Inc (New Hyde Park, NY) and North Shore - Lij Medical PC (New Hyde Park, NY). Each 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 Maria Grubman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Maria Grubman affiliated with any hospitals?
According to CMS data, Maria Grubman is affiliated with Long Island Jewish Medical Center.
When was this NPI record last updated?
The NPPES record for Maria Grubman was last updated on May 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.
# Maria Teresa Grubman, FAMILY NP · NPI 1003469032
Family physician in Bay Shore, New York. Individual provider, active in the CMS NPPES registry since July 18, 2019.
## Identity
- **NPI:** 1003469032 (Entity type: Individual)
- **Enumerated:** July 18, 2019
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** F3440191 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 440 E MAIN STREET, Bay Shore, NY 11706
- **Phone:** (631) 414-6999
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Chs Physician Partners, P.C (NPI 1679823512, West Sayville, NY); North Shore Health System Medical Faculty Group Practice Inc (NPI 1003409061, New Hyde Park, NY); North Shore - Lij Medical PC (NPI 1790043479, New Hyde Park, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** May 23, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1003469032) · Data from the CMS NPPES public registry.