John Edward Kazilionis, DO
Family Medicine Physician · South Portland, ME
John Edward Kazilionis, DO is a family medicine physician with a practice address in South Portland, Maine, and NPI 1114941937, issued on Jul 26, 2006. Check the license (Maine 917, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- John Edward Kazilionis
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 917 ME
Self-reported in NPPES; status is on the state search - Practice location
- 778 Main St, South Portland, ME 04106
- Phone
- (207) 775-7758
- Enumerated
- Jul 26, 2006
- Record last updated
- Mar 29, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (207) 879-7758
- Medicaid ID
- 203900099 ME
- Medicare enrollment
- Enrolled (PECOS I20041005000295); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1975
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,172 in Maine → Look up another NPI →
Also registered at 778 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joanne Boeschenstein, LCSWClinical Social Worker1538406137
- Christine Brome, LCSWClinical Social Worker1275247421
- Nancy Carroll, N.P.Obstetrics & Gynecology Nurse Practitioner1689664831
- Caitlyn Durant, RN, BSNStudent in an Organized Health Care Education/Training Program1033033089
- Erin King, LCSW, APHSW-CClinical Social Worker1174238554
- Benjamin Lannon, MDReproductive Endocrinology Physician1225170624
Verify John Edward Kazilionis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license 917Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average family medicine physician in 2024
2,210 Medicare Part D claims for 163 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 34 claims were for opioids.
Most prescribed
- Levothyroxine Sodium143 claims
- Lisinopril96 claims
- Atorvastatin Calcium85 claims
- Sertraline Hcl82 claims
- Donepezil Hcl78 claims
- Amlodipine Besylate77 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- University OF New EnglandBiddeford, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Edward Kazilionis among 1,172 family medicine physician records in Maine
John Edward Kazilionis, DO is one of 1,172 family medicine physician records with a practice address in Maine. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 52% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1975 · median 2008 among the 668 with a school on file
- Record last updated2013 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 family medicine physician records list a practice address in South Portland
They are 31 of the 1,143 NPPES records with a practice address in South Portland, and 1,172 family medicine physician records in Maine.
All 1,172 in Maine → Every provider in South Portland → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Matthew Belcher, MDSouth Portland, ME 041061952351223
- Stephen Blair, D.O.South Portland, ME 041061992730311
- Morgen Buehner, MDSo Portland, ME 041061346315637
- Michael Ciampi, M.D.South Portland, ME 041061205862760
- Mary Connolly, MDSouth Portland, ME 041061558535559
- Megan Driscoll, MDSouth Portland, ME 041061265482152
- Jeffrey Grassmann, D.O.South Portland, ME 041061750580486
- John Hatzenbuehler, MDSouth Portland, ME 041061699844365
Common questions
What is John Edward Kazilionis, DO's NPI number?
John Edward Kazilionis, DO's National Provider Identifier (NPI) is 1114941937, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Edward Kazilionis, DO located?
The NPPES record lists a practice address at 778 Main St, South Portland, ME, 04106. Phone: (207) 775-7758. Providers update this record themselves, so call before visiting.
How can I verify John Edward Kazilionis, DO's license?
NPPES lists Maine license number 917, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Edward Kazilionis, DO prescribe under Medicare Part D?
In 2024, John Edward Kazilionis, DO had 2,210 Medicare Part D claims for 163 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.