DR. JAN P MATEJKA MD
NPI 1225014418
Anesthesiology in Westwood, MA
About Dr. Jan P Matejka Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAN P MATEJKA MD (NPI 1225014418) is an individual anesthesiology provider in Westwood, Massachusetts, licensed in Massachusetts (77755) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Mount Auburn Hospital, and is a graduate of Michigan State University College Of Human Medicine (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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 (PECOS)
Dr. Jan P Matejka Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Jan Matejka reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milton, MA 02186
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1861216038 (Massachusetts)
- 556 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1093756629 (Massachusetts)
- 2,579 clinicians in this Medicare group
Weymouth, MA 02189
- Reassigned Medicare billing, Massachusetts enrollment
- 115 clinicians in this Medicare group
Salem, MA 01970
- Reassigned Medicare billing, Massachusetts enrollment
- 994 clinicians in this Medicare group
Lawrence, MA 01842
- Reassigned Medicare billing, Massachusetts enrollment
- 231 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 10
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Auburn Hospital
Acute Care Hospitals · Cambridge, MANew England Baptist Hospital
Acute Care Hospitals · Boston, MAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Jan Matejka's NPI number?
The NPI number for Jan Matejka is 1225014418. It was assigned to this individual provider in the NPPES registry on December 20, 2005.
Where is Jan Matejka located?
Jan Matejka practices at 690 Canton St Ste 240, Westwood, MA 02090. The listed phone number is (339) 204-9516.
What is Jan Matejka's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Jan Matejka enrolled in Medicare?
Yes. Jan Matejka is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Jan Matejka's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jan Matejka reassigns Medicare benefits to 5 organizations: Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Milton, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA), Capa Anesthesia LLC (Weymouth, MA), Mass General Brigham Medical Group Northern Massachusetts Inc (Salem, MA) and Lawrence Anesthesia Services, LLC (Lawrence, MA). 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 Jan Matejka's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jan Matejka accept?
Health plans from Taro Health list Jan Matejka 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 Jan Matejka affiliated with any hospitals?
According to CMS data, Jan Matejka is affiliated with Mount Auburn Hospital and New England Baptist Hospital.
When was this NPI record last updated?
The NPPES record for Jan Matejka was last updated on November 21, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.