THOMAS MATHEW M.D.
NPI 1336363373
Internal Medicine in Southampton, NY
About Thomas Mathew M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS MATHEW M.D. (NPI 1336363373) is an individual internal medicine provider in Southampton, New York, licensed in New York (242928) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS, is affiliated with Atrium Health Navicent The Medical Center, and maintains a secondary practice location in Charleston.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Other Identifiers 1
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
Thomas Mathew M.d. 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
14Medicare enrollment records show Thomas Mathew reassigns Medicare billing to 14 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Schenectady, NY 12308
- Reassigned Medicare billing, New York enrollment
- 462 clinicians in this Medicare group
Elmira, NY 14905
- Reassigned Medicare billing, New York enrollment
- 245 clinicians in this Medicare group
Dansville, NY 14437
- Reassigned Medicare billing, New York enrollment
- 275 clinicians in this Medicare group
Ronceverte, WV 24970
- Reassigned Medicare billing, West Virginia enrollment
- 1,511 clinicians in this Medicare group
Mishawaka, IN 46544
- Reassigned Medicare billing, Indiana enrollment
- 384 clinicians in this Medicare group
Riverdale, GA 30274
- Reassigned Medicare billing, Georgia enrollment
- 160 clinicians in this Medicare group
Macon, GA 31201
- Reassigned Medicare billing, Georgia enrollment
- 483 clinicians in this Medicare group
Macon, GA 31210
- Reassigned Medicare billing, Georgia enrollment
- 635 clinicians in this Medicare group
Warner Robins, GA 31093
- Reassigned Medicare billing, Georgia enrollment
- 150 clinicians in this Medicare group
Brentwood, TN 37027
- Reassigned Medicare billing, Indiana enrollment
- 218 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 4
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Atrium Health Navicent The Medical Center
Acute Care Hospitals · Macon, GAArnot Ogden Medical Center
Acute Care Hospitals · Elmira, NYCharleston Area Medical Center
Acute Care Hospitals · Charleston, WVPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11968 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Thomas Mathew's NPI number?
The NPI number for Thomas Mathew is 1336363373. It was assigned to this individual provider in the NPPES registry on April 12, 2007.
Where is Thomas Mathew located?
Thomas Mathew practices at 238 Old Town Rd, Southampton, NY 11968. The listed phone number is (631) 283-2100.
What is Thomas Mathew's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Thomas Mathew enrolled in Medicare?
Yes. Thomas Mathew 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 Thomas Mathew's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Mathew reassigns Medicare benefits to 14 organizations: Ellis Hospital (Schenectady, NY), Arnot Ogden Medical Center (Elmira, NY), Nicholas H. Noyes Memorial Hospital (Dansville, NY), Charleston Area Medical Center, Inc. (Ronceverte, WV), Sound Physicians Of Indiana, LLC (Mishawaka, IN) and 9 more organizations, listed in the Medicare section above. 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 Thomas Mathew's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Mathew accept?
Health plans from CareSource list Thomas Mathew 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 Thomas Mathew affiliated with any hospitals?
According to CMS data, Thomas Mathew is affiliated with Atrium Health Navicent The Medical Center, Arnot Ogden Medical Center and Charleston Area Medical Center.
When was this NPI record last updated?
The NPPES record for Thomas Mathew was last updated on April 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Thomas Mathew, M.D. · NPI 1336363373
Internal Medicine physician in Southampton, New York. Individual provider, active in the CMS NPPES registry since April 12, 2007.
## Identity
- **NPI:** 1336363373 (Entity type: Individual)
- **Enumerated:** April 12, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 242928 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 238 OLD TOWN RD, Southampton, NY 11968-5013
- **Phone:** (631) 283-2100 · **Fax:** (631) 283-5731
## 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:** 14 organizations under Medicare reassignment (form CMS-855R): Ellis Hospital (NPI 1487644993, Schenectady, NY); Arnot Ogden Medical Center (NPI 1083605661, Elmira, NY); Nicholas H. Noyes Memorial Hospital (NPI 1982625661, Dansville, NY); Charleston Area Medical Center, Inc. (NPI 1972125995, Ronceverte, WV); Sound Physicians Of Indiana, LLC (NPI 1356687164, Mishawaka, IN); and 9 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1999
## Record status
- **NPPES last updated:** April 29, 2026
- **Other identifiers:** Medicaid 1336363373 (WV)
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Source: [NPI Profile](https://npiprofile.com/npi/1336363373) · Data from the CMS NPPES public registry.