DR. MARIAM ATIA DO
NPI 1790247005
Hospitalist in Riverhead, NY
About Dr. Mariam Atia Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARIAM ATIA DO (NPI 1790247005) is an individual hospitalist provider in Riverhead, New York, licensed in New York (314011) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS, is affiliated with Peconic Bay Medical Center, and is a graduate of New York College Of Osteo Medicine Of New York Institute Of Technology (2019).
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. Mariam Atia Do 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
2Medicare enrollment records show Mariam Atia reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Riverhead, NY 11901
- Reassigned Medicare billing, New York enrollment
- 134 clinicians in this Medicare group
Great Neck, NY 11021
- 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.
Areas of Expertise CMS Part B claims 6
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Peconic Bay Medical Center
Acute Care Hospitals · Riverhead, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11901 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.
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.
RIVERHEAD, NY 11901
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 Mariam Atia's NPI number?
The NPI number for Mariam Atia is 1790247005. It was assigned to this individual provider in the NPPES registry on April 4, 2019.
Where is Mariam Atia located?
Mariam Atia practices at 1300 Roanoke Ave, Riverhead, NY 11901. The listed phone number is (631) 727-1600.
What is Mariam Atia's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Mariam Atia enrolled in Medicare?
Yes. Mariam Atia 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 Mariam Atia's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mariam Atia reassigns Medicare benefits to 2 organizations: Central Suffolk Hospital (Riverhead, NY) and North Shore-Lij Medical PC (Great Neck, 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 Mariam Atia's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mariam Atia affiliated with any hospitals?
According to CMS data, Mariam Atia is affiliated with Peconic Bay Medical Center.
When was this NPI record last updated?
The NPPES record for Mariam Atia was last updated on July 15, 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. Mariam Atia, DO · NPI 1790247005
Hospitalist physician in Riverhead, New York. Individual provider, active in the CMS NPPES registry since April 4, 2019.
## Identity
- **NPI:** 1790247005 (Entity type: Individual)
- **Enumerated:** April 4, 2019
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 314011 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1300 ROANOKE AVE, Riverhead, NY 11901-2058
- **Phone:** (631) 727-1600
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Central Suffolk Hospital (NPI 1043402050, Riverhead, NY); North Shore-Lij Medical PC (NPI 1053688572, Great Neck, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York College Of Osteo Medicine Of New York Institute Of Technology, class of 2019
## Record status
- **NPPES last updated:** July 15, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1790247005) · Data from the CMS NPPES public registry.