JOHN MITKO
NPI 1023495520
Surgery in Brockton, MA
About John Mitko NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN MITKO (NPI 1023495520) is an individual surgery provider in Brockton, Massachusetts, licensed in Massachusetts (1019022) and active in the NPI registry since May 2015. He is enrolled in Medicare PECOS, is affiliated with Signature Healthcare Brockton Hospital, and is a graduate of Other (2015).
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 and accepts Medicare assignment
John Mitko 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
3Medicare enrollment records show John Mitko reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brockton, MA 02301
- Reassigned Medicare billing, Massachusetts enrollment
- 409 clinicians in this Medicare group
Chicago, IL 60654
- Reassigned Medicare billing, Illinois enrollment
- 12 clinicians in this Medicare group
Chicago, IL 60657
- Reassigned Medicare billing, Illinois enrollment
- 4,870 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 8
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Signature Healthcare Brockton Hospital
Acute Care Hospitals · Brockton, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02302 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.
BROCKTON, MA 02302
BROCKTON, MA 02302
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 John Mitko's NPI number?
The NPI number for John Mitko is 1023495520. It was assigned to this individual provider in the NPPES registry on May 4, 2015.
Where is John Mitko located?
John Mitko practices at 680 Centre St, Brockton, MA 02302. The listed phone number is (508) 941-7000.
What is John Mitko's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is John Mitko enrolled in Medicare?
Yes. John Mitko 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 John Mitko's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Mitko reassigns Medicare benefits to 3 organizations: Signature Healthcare Medical Group Inc (Brockton, MA), Chicago Institute Of Advanced Surgery (Chicago, IL) and Advocate Health And Hospitals Corp. (Chicago, IL). 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 John Mitko's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Mitko accept?
Health plans from Anthem Blue Cross and Blue Shield, Oscar Health and Taro Health list John Mitko 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 John Mitko affiliated with any hospitals?
According to CMS data, John Mitko is affiliated with Signature Healthcare Brockton Hospital.
When was this NPI record last updated?
The NPPES record for John Mitko was last updated on September 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.
# John Mitko · NPI 1023495520
Surgery physician in Brockton, Massachusetts. Individual provider, active in the CMS NPPES registry since May 4, 2015.
## Identity
- **NPI:** 1023495520 (Entity type: Individual)
- **Enumerated:** May 4, 2015
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 1019022 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 680 CENTRE ST, Brockton, MA 02302-3308
- **Phone:** (508) 941-7000
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Signature Healthcare Medical Group Inc (NPI 1508804949, Brockton, MA); Chicago Institute Of Advanced Surgery (NPI 1558600957, Chicago, IL); Advocate Health And Hospitals Corp. (NPI 1487951711, Chicago, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** September 2, 2025
- **Other identifiers:** Medicaid 36156800 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1023495520) · Data from the CMS NPPES public registry.