DR. KEI SHING OH MD
NPI 1356990279
Pathology - Anatomic Pathology & Clinical Pathology in Pittsburgh, PA
About Dr. Kei Shing Oh Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KEI SHING OH MD (NPI 1356990279) is an individual anatomic pathology & clinical pathology provider in Pittsburgh, Pennsylvania, licensed in Florida (TRN29708) and active in the NPI registry since September 2019. She is enrolled in Medicare PECOS, is affiliated with Mercyone North Iowa Medical Center, and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses
Group Practice 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
Dr. Kei Shing Oh 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 Kei Shing Oh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mason City, IA 50401
- Reassigned Medicare billing, Iowa enrollment
- 6 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 12
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercyone North Iowa Medical Center
Acute Care Hospitals · Mason City, IAHancock County Health System
Critical Access Hospitals · Britt, IAFranklin General Hospital
Critical Access Hospitals · Hampton, IAFloyd County Medical Center
Critical Access Hospitals · Charles City, IAKossuth Regional Health Center
Critical Access Hospitals · Algona, IAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 15213 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Kei Shing Oh's NPI number?
The NPI number for Kei Shing Oh is 1356990279. It was assigned to this individual provider in the NPPES registry on September 4, 2019.
Where is Kei Shing Oh located?
Kei Shing Oh practices at 3601 5th Avenue, Upmc Dermatology Suite 5A, Pittsburgh, PA 15213. The listed phone number is (412) 647-4200.
What is Kei Shing Oh's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is Kei Shing Oh enrolled in Medicare?
Yes. Kei Shing 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 organization bills Medicare for Kei Shing Oh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kei Shing Oh reassigns Medicare benefits to Pathology Associates Of Mason City (Mason City, IA). 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 Kei Shing Oh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kei Shing Oh accept?
Health plans from Oscar Health, Oscar Insurance Company and Wellmark Health Plan of Iowa, Inc. list Kei Shing 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 Kei Shing Oh affiliated with any hospitals?
According to CMS data, Kei Shing Oh is affiliated with Mercyone North Iowa Medical Center, Hancock County Health System, Franklin General Hospital, Floyd County Medical Center and Kossuth Regional Health Center.
When was this NPI record last updated?
The NPPES record for Kei Shing Oh was last updated on June 23, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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. Kei Shing Oh, MD · NPI 1356990279
Anatomic Pathology & Clinical Pathology physician in Pittsburgh, Pennsylvania. Individual provider, active in the CMS NPPES registry since September 4, 2019.
## Identity
- **NPI:** 1356990279 (Entity type: Individual)
- **Enumerated:** September 4, 2019
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **State license:** TRN29708 (Florida)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3601 5TH AVENUE, UPMC DERMATOLOGY, SUITE 5A, Pittsburgh, PA 15213
- **Phone:** (412) 647-4200
## 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:** Pathology Associates Of Mason City (NPI 1073550810, Mason City, IA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** June 23, 2023
---
Source: [NPI Profile](https://npiprofile.com/npi/1356990279) · Data from the CMS NPPES public registry.