JONATHAN TAM MD
NPI 1841853397
Student in an Organized Health Care Education/Training Program in Pittsburgh, PA
About Jonathan Tam Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JONATHAN TAM MD (NPI 1841853397) is an individual student in an organized health care education/training program in Pittsburgh, Pennsylvania and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Upmc Jameson, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses
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
Jonathan Tam 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 Jonathan Tam reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pittsburgh, PA 15213
- Reassigned Medicare billing, Pennsylvania enrollment
- 7,114 clinicians in this Medicare group
Pittsburgh, PA 15213
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,182 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
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.
Upmc Jameson
Acute Care Hospitals · New Castle, PAUpmc Mercy
Acute Care Hospitals · Pittsburgh, PAUpmc Presbyterian Shadyside
Acute Care Hospitals · Pittsburgh, PAMedicare 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.
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.
PITTSBURGH, PA 15213
PITTSBURGH, PA 15213
PITTSBURGH, PA 15213
PITTSBURGH, PA 15213
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 Jonathan Tam's NPI number?
The NPI number for Jonathan Tam is 1841853397. It was assigned to this individual provider in the NPPES registry on April 19, 2019.
Where is Jonathan Tam located?
Jonathan Tam practices at 200 Lothrop St, Pittsburgh, PA 15213. The listed phone number is (412) 647-3333.
What is Jonathan Tam's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is Jonathan Tam enrolled in Medicare?
Yes. Jonathan Tam 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 Jonathan Tam's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jonathan Tam reassigns Medicare benefits to 2 organizations: University Of Pittsburgh Physicians (Pittsburgh, PA) and Upmc Community Medicine Inc (Pittsburgh, PA). 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 Jonathan Tam's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Jonathan Tam affiliated with any hospitals?
According to CMS data, Jonathan Tam is affiliated with Upmc Jameson, Upmc Mercy and Upmc Presbyterian Shadyside.
When was this NPI record last updated?
The NPPES record for Jonathan Tam was last updated on September 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 46 days 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.
# Jonathan Tam, MD · NPI 1841853397
Student in an Organized Health Care Education/Training Program provider in Pittsburgh, Pennsylvania. Individual provider, active in the CMS NPPES registry since April 19, 2019.
## Identity
- **NPI:** 1841853397 (Entity type: Individual)
- **Enumerated:** April 19, 2019
- **Primary specialty:** Student in an Organized Health Care Education/Training Program · taxonomy 390200000X
- **Sole proprietor:** No
## Practice location
- **Address:** 200 LOTHROP ST, Pittsburgh, PA 15213-2536
- **Phone:** (412) 647-3333
## 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): University Of Pittsburgh Physicians (NPI 1215995402, Pittsburgh, PA); Upmc Community Medicine Inc (NPI 1306972724, Pittsburgh, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** September 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1841853397) · Data from the CMS NPPES public registry.