William Byer, CRNA
Certified Registered Nurse Anesthetist · Bar Harbor, ME
William Byer, CRNA is a certified registered nurse anesthetist with a practice address in Bar Harbor, Maine, and NPI 1285921403, issued on Jul 8, 2011. Check the license (Maine RNA203039, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Byer
- Credential
- CRNA
- Primary taxonomy
- Certified Registered Nurse Anesthetist 367500000X
- License numbers
- RNA203039 ME
143046 CT
9242790 FL
Self-reported in NPPES; status is on the state search - Practice location
- 10 Wayman LN, Bar Harbor, ME 04609
- Phone
- (207) 288-5081
- Enumerated
- Jul 8, 2011
- Entity
- Type 1 · individual
Also registered at 10 Wayman LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Allerding, D.OFamily Medicine Physician1104895747
- Angela Arnold-Ross, RN, MSNRegistered Nurse1548713191
- Lynne Assaf, MSWClinical Social Worker1740307313
- Katelynn Badger, CRNACertified Registered Nurse Anesthetist1710508478
- Kyla Baxter, OTR/LPhysical Rehabilitation Occupational Therapist1902761331
- Brenda Beckett, P.A.-CMedical Physician Assistant1134214018
Verify William Byer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license RNA203039Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
The practice group's Medicare quality score for 2023: 84 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
2 hospital and facility affiliations
- Las Cruces HB Medical Services LLCLas Cruces, NM
- Mount Desert Island HospitalBar Harbor, ME · Critical Access Hospitals
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
7 certified registered nurse anesthetist records list a Bar Harbor practice address
They are 7 of the 157 NPPES records with a Bar Harbor practice address, and 446 certified registered nurse anesthetist records in Maine.
All 7 in Bar Harbor → All 446 in Maine → Every provider in Bar Harbor →
Other certified registered nurse anesthetist records in Maine
- Hope Abba, CRNAPortland, ME1659800456
- Novisi AbbaPortland, ME1598389256
- Virginia Adams, CRNAPortland, ME1619376837
- Jill Ahern, CRNABangor, ME1558469551
- Donald Albee, CRNALewiston, ME1437168903
- Julie Albert, CRNACaribou, ME1346321213
- Paul Alexander, CRNABridgton, ME1275538258
- Justin Alley, CRNABangor, ME1356601843
- Heidi Alpern, CRNAPortland, ME1023104510
- Elise Amico, RNPortland, ME1376119727
Common questions
What is William Byer, CRNA's NPI number?
William Byer, CRNA's National Provider Identifier (NPI) is 1285921403, issued on Jul 8, 2011. An NPI identifies a provider in billing; it is not a license.
Where is William Byer, CRNA located?
The NPPES record lists a practice address at 10 Wayman LN, Bar Harbor, ME, 04609. Phone: (207) 288-5081. Providers update this record themselves, so call before visiting.
How can I verify William Byer, CRNA's license?
NPPES lists Maine license number RNA203039, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
What is William Byer, CRNA's Medicare quality score?
The 2023 MIPS final score is 84 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.