DR. ISIDORE CHIMEZIE OKERE MD
NPI 1326259078
Internal Medicine - Cardiovascular Disease in Bangor, ME
About Dr. Isidore Chimezie Okere Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ISIDORE CHIMEZIE OKERE MD (NPI 1326259078) is an individual cardiovascular disease provider in Bangor, Maine, licensed in Maine (MD20301) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Northern Light A R Gould Hospital, and is a graduate of Uniformed Services Uhs Fe Hebert School Of Med (1999).
NPPES Registry Identity
Specialties & Licenses 2
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
Dr. Isidore Chimezie Okere 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
8Medicare enrollment records show Isidore Okere reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bangor, ME 04401
- Reassigned Medicare billing, Maine enrollment
- 348 clinicians in this Medicare group
Bangor, ME 04401
- Reassigned Medicare billing, Maine enrollment
- 788 clinicians in this Medicare group
Pittsfield, ME 04967
- Reassigned Medicare billing, Maine enrollment
- 140 clinicians in this Medicare group
Ellsworth, ME 04605
- Reassigned Medicare billing, Maine enrollment
- 174 clinicians in this Medicare group
Dover Foxcroft, ME 04426
- Reassigned Medicare billing, Maine enrollment
- 146 clinicians in this Medicare group
Blue Hill, ME 04614
- Reassigned Medicare billing, Maine enrollment
- 125 clinicians in this Medicare group
Lincoln, ME 04457
- Reassigned Medicare billing, Maine enrollment
- 70 clinicians in this Medicare group
Greenville, ME 04441
- Reassigned Medicare billing, Maine enrollment
- 105 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 12
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northern Light A R Gould Hospital
Acute Care Hospitals · Presque Isle, MENorthern Light Eastern Maine Medical Center
Acute Care Hospitals · Bangor, MEMillinocket Regional Hospital
Critical Access Hospitals · Millinocket, MENorthern Light Mayo Hospital
Critical Access Hospitals · Dover Foxcroft, MEDown East Community Hospital
Critical Access Hospitals · Machias, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04401 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.
BANGOR, ME 04401
BANGOR, ME 04401
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 Isidore Okere's NPI number?
The NPI number for Isidore Okere is 1326259078. It was assigned to this individual provider in the NPPES registry on May 24, 2007.
Where is Isidore Okere located?
Isidore Okere practices at 1 Northeast Dr, Bangor, ME 04401. The listed phone number is (207) 275-3800.
What is Isidore Okere's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Isidore Okere enrolled in Medicare?
Yes. Isidore Okere 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 Isidore Okere's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Isidore Okere reassigns Medicare benefits to 8 organizations: Acadia Hospital Corp (Bangor, ME), Eastern Maine Medical Center (Bangor, ME), Sebasticook Valley Health (Pittsfield, ME), Maine Coast Regional Health Facilities (Ellsworth, ME), Mrh Corp. (Dover Foxcroft, ME) and 3 more organizations, listed in the Medicare section above. 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 Isidore Okere's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Isidore Okere accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Isidore Okere 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 Isidore Okere affiliated with any hospitals?
According to CMS data, Isidore Okere is affiliated with Northern Light A R Gould Hospital, Northern Light Eastern Maine Medical Center, Millinocket Regional Hospital, Northern Light Mayo Hospital and Down East Community Hospital.
When was this NPI record last updated?
The NPPES record for Isidore Okere was last updated on March 2, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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. Isidore Chimezie Okere, MD · NPI 1326259078
Cardiovascular Disease physician in Bangor, Maine. Individual provider, active in the CMS NPPES registry since May 24, 2007.
## Identity
- **NPI:** 1326259078 (Entity type: Individual)
- **Enumerated:** May 24, 2007
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** MD20301 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 NORTHEAST DR, Bangor, ME 04401-4332
- **Phone:** (207) 275-3800
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Acadia Hospital Corp (NPI 1215940523, Bangor, ME); Eastern Maine Medical Center (NPI 1790789147, Bangor, ME); Sebasticook Valley Health (NPI 1457461477, Pittsfield, ME); Maine Coast Regional Health Facilities (NPI 1447204763, Ellsworth, ME); Mrh Corp. (NPI 1558319103, Dover Foxcroft, ME); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Uniformed Services Uhs Fe Hebert School Of Med, class of 1999
## Record status
- **NPPES last updated:** March 2, 2021
- **Other identifiers:** Medicaid 1326259078 (IA)
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Source: [NPI Profile](https://npiprofile.com/npi/1326259078) · Data from the CMS NPPES public registry.