DR. MICHAEL NMI KNOWLAND MD,FACS
NPI 1477574887
Otolaryngology in South Portland, ME
About Dr. Michael Nmi Knowland Md,facs NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL NMI KNOWLAND MD,FACS (NPI 1477574887) is an individual otolaryngology provider in South Portland, Maine, licensed in Maine (011118) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Minot, and is a graduate of Other (1974).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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. Michael Nmi Knowland Md,facs 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 Michael Knowland reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lewiston, ME 04240
- Reassigned Medicare billing, Maine enrollment
- 920 clinicians in this Medicare group
Poteau, OK 74953
- Reassigned Medicare billing, Texas enrollment
- 581 clinicians in this Medicare group
Phoenix, AZ 85012
- Reassigned Medicare billing, Arizona enrollment
- 553 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04106 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare 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 Michael Knowland's NPI number?
The NPI number for Michael Knowland is 1477574887. It was assigned to this individual provider in the NPPES registry on July 21, 2006.
Where is Michael Knowland located?
Michael Knowland practices at 130 Clifford St, South Portland, ME 04106. The listed phone number is (207) 799-8628.
What is Michael Knowland's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Michael Knowland enrolled in Medicare?
Yes. Michael Knowland 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 Michael Knowland's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Knowland reassigns Medicare benefits to 3 organizations: Central Maine Medical Center (Lewiston, ME), Choctaw Nation Of Oklahoma (Poteau, OK) and Banner - University Physician Specialists LLC (Phoenix, AZ). 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 Michael Knowland's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Knowland accept?
Health plans from Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc. and Taro Health list Michael Knowland 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.
When was this NPI record last updated?
The NPPES record for Michael Knowland was last updated on September 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Dr. Michael Nmi Knowland, MD,FACS · NPI 1477574887
Otolaryngology physician in South Portland, Maine. Individual provider, active in the CMS NPPES registry since July 21, 2006.
## Identity
- **NPI:** 1477574887 (Entity type: Individual)
- **Enumerated:** July 21, 2006
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **State license:** 011118 (Maine)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 130 CLIFFORD ST, South Portland, ME 04106-6520
- **Phone:** (207) 799-8628 · **Fax:** (207) 767-6089
## 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): Central Maine Medical Center (NPI 1689653487, Lewiston, ME); Choctaw Nation Of Oklahoma (NPI 1710953799, Poteau, OK); Banner - University Physician Specialists LLC (NPI 1417312760, Phoenix, AZ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1974
## Record status
- **NPPES last updated:** September 24, 2025
- **Other identifiers:** Medicaid 201311730 (IN)
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Source: [NPI Profile](https://npiprofile.com/npi/1477574887) · Data from the CMS NPPES public registry.