TIA OH NP
NPI 1699054056
Nurse Practitioner - Family in Southbridge, MA
About Tia Oh Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIA OH NP (NPI 1699054056) is an individual family provider in Southbridge, Massachusetts, licensed in Massachusetts (RN2264812) and active in the NPI registry since August 2011. She is enrolled in Medicare PECOS, is affiliated with Umass Memorial Health - Harrington Hospital, and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses
Other Names 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
Tia Oh 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
2Medicare enrollment records show Tia Oh reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oxford, MA 01540
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 clinicians in this Medicare group
Worcester, MA 01608
- Reassigned Medicare billing, Massachusetts enrollment
- 31 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 5
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.
Umass Memorial Health - Harrington Hospital
Acute Care Hospitals · Southbridge, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01550 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.
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.
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.
SOUTHBRIDGE, MA 01550
SOUTHBRIDGE, MA 01550
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 Tia Oh's NPI number?
The NPI number for Tia Oh is 1699054056. It was assigned to this individual provider in the NPPES registry on August 16, 2011. The provider is also known as Tia Yang Np.
Where is Tia Oh located?
Tia Oh practices at 100 South St, Southbridge, MA 01550. The listed phone number is (508) 765-9771.
What is Tia Oh's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Tia Oh enrolled in Medicare?
Yes. Tia Oh 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 Tia Oh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tia Oh reassigns Medicare benefits to 2 organizations: Umass Memorial Medical Group, Inc. (Oxford, MA) and New England Hospitalists PC (Worcester, MA). 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 Tia Oh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tia Oh accept?
Health plans from Taro Health list Tia Oh 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 Tia Oh affiliated with any hospitals?
According to CMS data, Tia Oh is affiliated with Umass Memorial Health - Harrington Hospital.
When was this NPI record last updated?
The NPPES record for Tia Oh was last updated on February 23, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Tia Oh, NP · NPI 1699054056
Family physician in Southbridge, Massachusetts. Individual provider, active in the CMS NPPES registry since August 16, 2011.
## Identity
- **NPI:** 1699054056 (Entity type: Individual)
- **Enumerated:** August 16, 2011
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** RN2264812 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 100 SOUTH ST, Southbridge, MA 01550-4051
- **Phone:** (508) 765-9771 · **Fax:** (508) 909-7735
## 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): Umass Memorial Medical Group, Inc. (NPI 1982381018, Oxford, MA); New England Hospitalists PC (NPI 1487803052, Worcester, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** February 23, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1699054056) · Data from the CMS NPPES public registry.