DR. HARRIET MATHER MD
NPI 1659997310
Internal Medicine - Hospice and Palliative Medicine in New York, NY
About Dr. Harriet Mather Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HARRIET MATHER MD (NPI 1659997310) is an individual hospice and palliative medicine provider in New York, New York, licensed in New York (312991) and active in the NPI registry since June 2020. She is enrolled in Medicare PECOS, is affiliated with Musc Medical Center, and is a graduate of Other (2005).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
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. Harriet Mather 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 Harriet Mather reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mt Pleasant, SC 29464
- Reassigned Medicare billing, South Carolina enrollment
- Medicare enrollment name: University Medical Associates Of The Medical University Of South Carol
- 2,594 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.
Musc Medical Center
Acute Care Hospitals · Charleston, SCOther 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 10029
NEW YORK, NY 10029
NEW YORK, NY 10029
NEW YORK, NY 10029
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 Harriet Mather's NPI number?
The NPI number for Harriet Mather is 1659997310. It was assigned to this individual provider in the NPPES registry on June 18, 2020.
Where is Harriet Mather located?
Harriet Mather practices at 1 Gustave L Levy Pl, New York, NY 10029. The listed phone number is (212) 241-6500.
What is Harriet Mather's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207RH0002X.
Is Harriet Mather enrolled in Medicare?
Yes. Harriet Mather 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 Harriet Mather's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Harriet Mather reassigns Medicare benefits to University Medical Associates (Mt Pleasant, SC). 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 Harriet Mather's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Harriet Mather accept?
Health plans from BlueCross BlueShield of South Carolina, First Choice Next and UnitedHealthcare list Harriet Mather as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Harriet Mather affiliated with any hospitals?
According to CMS data, Harriet Mather is affiliated with Musc Medical Center.
When was this NPI record last updated?
The NPPES record for Harriet Mather was last updated on January 4, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Harriet Mather, MD · NPI 1659997310
Hospice and Palliative Medicine physician in New York, New York. Individual provider, active in the CMS NPPES registry since June 18, 2020.
## Identity
- **NPI:** 1659997310 (Entity type: Individual)
- **Enumerated:** June 18, 2020
- **Primary specialty:** Internal Medicine - Hospice and Palliative Medicine · taxonomy 207RH0002X
- **State license:** 312991 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 GUSTAVE L LEVY PL, New York, NY 10029-6504
- **Phone:** (212) 241-6500
## 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:** University Medical Associates (NPI 1437176039, Mt Pleasant, SC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** January 4, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1659997310) · Data from the CMS NPPES public registry.