KAREN ANDREA MARKOSIAN MD
NPI 1649929985
Family Medicine in Allentown, PA
About Karen Andrea Markosian Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN ANDREA MARKOSIAN MD (NPI 1649929985) is an individual family medicine provider in Allentown, Pennsylvania, licensed in Pennsylvania (MT224925) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
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
Karen Andrea Markosian 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 Karen Markosian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Rye Brook, NY 10573
- Reassigned Medicare billing, New York enrollment
- 470 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 18102 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.
ALLENTOWN, PA 18102
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 Karen Markosian's NPI number?
The NPI number for Karen Markosian is 1649929985. It was assigned to this individual provider in the NPPES registry on March 23, 2022.
Where is Karen Markosian located?
Karen Markosian practices at 450 Chew St Ste 101, Allentown, PA 18102. The listed phone number is (610) 776-4888.
What is Karen Markosian's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Karen Markosian enrolled in Medicare?
Yes. Karen Markosian 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 Karen Markosian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Markosian reassigns Medicare benefits to Westchester Medical Group, P.C. (Rye Brook, NY). 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 Karen Markosian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Karen Markosian was last updated on April 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Karen Andrea Markosian, MD · NPI 1649929985
Family Medicine physician in Allentown, Pennsylvania. Individual provider, active in the CMS NPPES registry since March 23, 2022.
## Identity
- **NPI:** 1649929985 (Entity type: Individual)
- **Enumerated:** March 23, 2022
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** MT224925 (Pennsylvania)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 450 CHEW ST STE 101, Allentown, PA 18102-3434
- **Phone:** (610) 776-4888
## 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:** Westchester Medical Group, P.C. (NPI 1881653822, Rye Brook, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** April 11, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1649929985) · Data from the CMS NPPES public registry.