DR. KAREN ELAINE THORNTON MD
NPI 1073629069
Family Medicine in New York, NY
About Dr. Karen Elaine Thornton Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KAREN ELAINE THORNTON MD (NPI 1073629069) is an individual family medicine provider in New York, New York, licensed in New York (193626) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through March 26, 2027, and is a graduate of Temple University School Of Medicine (1989).
NPPES Registry Identity
Specialties & Licenses
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. Karen Elaine Thornton 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
4Medicare enrollment records show Karen Thornton reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10019
- Reassigned Medicare billing, New Jersey and New York enrollments
New York, NY 10017
- Reassigned Medicare billing, New York enrollment
- 8 clinicians in this Medicare group
New York, NY 10128
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Quickmed Medical PC
- 7 clinicians in this Medicare group
Brooklyn, NY 11205
- Reassigned Medicare billing, New Jersey and New York enrollments
- 11 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.
CLIA Laboratory Certificates CMS CLIA 2
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 33D2251190
Karen E Thornton MD PC · New York, NYCertificate of Compliance 33D2223307
Karen E Thornton MD PC · New York, NYAreas of Expertise CMS Part B claims 18
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10019 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.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10019
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 Thornton's NPI number?
The NPI number for Karen Thornton is 1073629069. It was assigned to this individual provider in the NPPES registry on August 22, 2006.
Where is Karen Thornton located?
Karen Thornton practices at 344 W 51st St, New York, NY 10019. The listed phone number is (212) 734-6621.
What is Karen Thornton's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Karen Thornton enrolled in Medicare?
Yes. Karen Thornton 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 Karen Thornton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Thornton reassigns Medicare benefits to 4 organizations: West 49th Street Medical Practice, PC (New York, NY), Medrite Medical Care PC (New York, NY), Quickmed Medical P.C. (New York, NY) and Rite Medical Care PC (Brooklyn, NY). 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 Karen Thornton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Does Karen Thornton hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 33D2251190) is associated with this NPI, valid through March 26, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Karen Thornton accept?
Health plans from Oscar Health list Karen Thornton 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.
When was this NPI record last updated?
The NPPES record for Karen Thornton was last updated on May 24, 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.