ALEXANDER HOI KI WU
NPI 1285087817
Internal Medicine - Hematology & Oncology in Brewer, ME
About Alexander Hoi Ki Wu NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER HOI KI WU (NPI 1285087817) is an individual hematology & oncology provider in Brewer, Maine, licensed in Maine (MD26265) and active in the NPI registry since July 2016. He is enrolled in Medicare PECOS, is affiliated with Northern Light Eastern Maine Medical Center, and is a graduate of Other (2016).
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
Alexander Hoi Ki Wu 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
2Medicare enrollment records show Alexander Wu reassigns Medicare billing to 2 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
- 788 clinicians in this Medicare group
Dover Foxcroft, ME 04426
- Reassigned Medicare billing, Maine enrollment
- 146 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 4
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 Eastern Maine Medical Center
Acute Care Hospitals · Bangor, MENorthern Light Maine Coast Hospital
Acute Care Hospitals · Ellsworth, MECharles A Dean Memorial Hospital
Critical Access Hospitals · Greenville, MENorthern Light Mayo Hospital
Critical Access Hospitals · Dover Foxcroft, MENorthern Light Sebasticook Valley Hospital
Critical Access Hospitals · Pittsfield, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04412 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.
BREWER, ME 04412
BREWER, ME 04412
BREWER, ME 04412
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 Alexander Wu's NPI number?
The NPI number for Alexander Wu is 1285087817. It was assigned to this individual provider in the NPPES registry on July 19, 2016.
Where is Alexander Wu located?
Alexander Wu practices at 33 Whiting Hill Rd, Brewer, ME 04412. The listed phone number is (207) 973-7000.
What is Alexander Wu's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Alexander Wu enrolled in Medicare?
Yes. Alexander Wu 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 Alexander Wu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Wu reassigns Medicare benefits to 2 organizations: Eastern Maine Medical Center (Bangor, ME) and Mrh Corp. (Dover Foxcroft, ME). 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 Alexander Wu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexander Wu accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Alexander Wu 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 Alexander Wu affiliated with any hospitals?
According to CMS data, Alexander Wu is affiliated with Northern Light Eastern Maine Medical Center, Northern Light Maine Coast Hospital, Charles A Dean Memorial Hospital, Northern Light Mayo Hospital and Northern Light Sebasticook Valley Hospital.
When was this NPI record last updated?
The NPPES record for Alexander Wu was last updated on August 18, 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.
# Alexander Hoi Ki Wu · NPI 1285087817
Hematology & Oncology physician in Brewer, Maine. Individual provider, active in the CMS NPPES registry since July 19, 2016.
## Identity
- **NPI:** 1285087817 (Entity type: Individual)
- **Enumerated:** July 19, 2016
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** MD26265 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 33 WHITING HILL RD, Brewer, ME 04412-1021
- **Phone:** (207) 973-7000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Eastern Maine Medical Center (NPI 1790789147, Bangor, ME); Mrh Corp. (NPI 1558319103, Dover Foxcroft, ME) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** August 18, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1285087817) · Data from the CMS NPPES public registry.