DR. MARY TIEN-YI WANG MD
NPI 1114570512
Internal Medicine in Cleveland, OH
About Dr. Mary Tien-yi Wang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARY TIEN-YI WANG MD (NPI 1114570512) is an individual internal medicine provider in Cleveland, Ohio, licensed in Ohio (35.145597) and active in the NPI registry since July 2019. She is enrolled in Medicare PECOS, is affiliated with Wooster Community Hospital, and is a graduate of Other (2019).
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. Mary Tien-yi Wang 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 Reassignments
2Medicare enrollment records show Mary Wang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Cleveland, OH 44195
- Reassigned Medicare billing, Ohio enrollment
- 7,608 clinicians in this Medicare group
Wooster, OH 44691
- Reassigned Medicare billing, Ohio enrollment
- 837 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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Wooster Community Hospital
Acute Care Hospitals · Wooster, OHMercy Medical Center
Acute Care Hospitals · Canton, OHMedina Hospital
Acute Care Hospitals · Medina, OHCleveland Clinic
Acute Care Hospitals · Cleveland, OHLodi Community Hospital
Critical Access Hospitals · Lodi, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 44195 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
CLEVELAND, OH 44195
CLEVELAND, OH 44195
CLEVELAND, OH 44195
CLEVELAND, OH 44195
CLEVELAND, OH 44195
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 Mary Wang's NPI number?
The NPI number for Mary Wang is 1114570512. It was assigned to this individual provider in the NPPES registry on July 24, 2019.
Where is Mary Wang located?
Mary Wang practices at 9500 Euclid Ave # Na23, Cleveland, OH 44195. The listed phone number is (216) 444-2200.
What is Mary Wang's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Mary Wang enrolled in Medicare?
Yes. Mary Wang 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 Mary Wang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Wang reassigns Medicare benefits to 2 organizations: The Cleveland Clinic Foundation (Cleveland, OH) and Wooster Clinic, LLC (Wooster, OH). 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 Mary Wang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Wang accept?
Health plans from Oscar Insurance Corporation of Ohio list Mary Wang 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 Mary Wang affiliated with any hospitals?
According to CMS data, Mary Wang is affiliated with Wooster Community Hospital, Mercy Medical Center, Medina Hospital, Cleveland Clinic and Lodi Community Hospital.
When was this NPI record last updated?
The NPPES record for Mary Wang was last updated on August 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Dr. Mary Tien-Yi Wang, MD · NPI 1114570512
Internal Medicine physician in Cleveland, Ohio. Individual provider, active in the CMS NPPES registry since July 24, 2019.
## Identity
- **NPI:** 1114570512 (Entity type: Individual)
- **Enumerated:** July 24, 2019
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 35.145597 (Ohio)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 9500 EUCLID AVE # NA23, Cleveland, OH 44195-0001
- **Phone:** (216) 444-2200
## 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): The Cleveland Clinic Foundation (NPI 1679525919, Cleveland, OH); Wooster Clinic, LLC (NPI 1033135009, Wooster, OH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** August 26, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1114570512) · Data from the CMS NPPES public registry.