DR. IOANNIS KARAKIS M.D.
NPI 1386819969
Psychiatry & Neurology - Epilepsy
in Boston, MA
About Dr. Ioannis Karakis M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. IOANNIS KARAKIS M.D. (NPI 1386819969) is an individual epilepsy provider in Boston, Massachusetts, licensed in Georgia (67662) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS, is affiliated with Unc Hospitals, and is a graduate of Other (2003).
NPPES Registry Identity
Specialties & Licenses 2
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. Ioannis Karakis M.d. 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 Ioannis Karakis reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
South Boston, VA 24592
- Reassigned Medicare billing, North Carolina enrollment
- 2,797 clinicians in this Medicare group
Raleigh, NC 27607
- Reassigned Medicare billing, North Carolina enrollment
- 701 clinicians in this Medicare group
Lenoir, NC 28645
- Reassigned Medicare billing, North Carolina enrollment
- 322 clinicians in this Medicare group
Atlanta, GA 30303
- Reassigned Medicare billing, Georgia enrollment
- 2,681 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Unc Hospitals
Acute Care Hospitals · Chapel Hill, NCRex Hospital
Acute Care Hospitals · Raleigh, NCMedicare 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.
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 Ioannis Karakis's NPI number?
The NPI number for Ioannis Karakis is 1386819969. It was assigned to this individual provider in the NPPES registry on April 24, 2008.
Where is Ioannis Karakis located?
Ioannis Karakis practices at 55 Fruit St # 739-L Massachusetts General Hospital, Department Of Neurology, Boston, MA 02114. The listed phone number is (617) 726-3311.
What is Ioannis Karakis's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Epilepsy, with taxonomy code 2084E0001X.
Is Ioannis Karakis enrolled in Medicare?
Yes. Ioannis Karakis 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 Ioannis Karakis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ioannis Karakis reassigns Medicare benefits to 4 organizations: University Of North Carolina At Chapel Hill (South Boston, VA), North Carolina Mg, LLC (Raleigh, NC), Blue Ridge Healthcare Medical Group, Inc (Lenoir, NC) and Emory Medical Care Foundation Inc (Atlanta, GA). 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 Ioannis Karakis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ioannis Karakis accept?
Health plans from Blue Cross and Blue Shield of NC and Oscar Health list Ioannis Karakis 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 Ioannis Karakis affiliated with any hospitals?
According to CMS data, Ioannis Karakis is affiliated with Unc Hospitals and Rex Hospital.
When was this NPI record last updated?
The NPPES record for Ioannis Karakis was last updated on November 2, 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.
# Dr. Ioannis Karakis, M.D. · NPI 1386819969
Epilepsy physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since April 24, 2008.
## Identity
- **NPI:** 1386819969 (Entity type: Individual)
- **Enumerated:** April 24, 2008
- **Primary specialty:** Psychiatry & Neurology - Epilepsy · taxonomy 2084E0001X
- **State license:** 67662 (Georgia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 55 FRUIT ST # 739-L, MASSACHUSETTS GENERAL HOSPITAL, DEPARTMENT OF NEUROLOGY, Boston, MA 02114-2621
- **Phone:** (617) 726-3311
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): University Of North Carolina At Chapel Hill (NPI 1407308703, South Boston, VA); North Carolina Mg, LLC (NPI 1215741640, Raleigh, NC); Blue Ridge Healthcare Medical Group, Inc (NPI 1023376829, Lenoir, NC); Emory Medical Care Foundation Inc (NPI 1063452381, Atlanta, GA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** November 2, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1386819969) · Data from the CMS NPPES public registry.