Mary Ellen Davis
Nurse Practitioner · Lewiston, ME
Mary Ellen Davis is a nurse practitioner with a practice address in Lewiston, Maine, and NPI 1215917919, issued on Jan 19, 2006. Check the license (Maine R026808, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Ellen Davis
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- R026808 ME
Self-reported in NPPES; status is on the state search - Practice location
- 12 High St, Lewiston, ME 04240
- Phone
- (207) 795-5700
- Enumerated
- Jan 19, 2006
- Record last updated
- Sep 20, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (207) 795-5727
- Medicare enrollment
- Enrolled (PECOS I20100804000700); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 450 in Maine → Look up another NPI →
Also registered at 12 High St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Autin, PHARM.D.Pharmacist1679967277
- Kathleen Bain, M.D.Pediatrics Physician1104856525
- David BakerPediatrics Physician1720067267
- Alex Beggs, NP-CFamily Nurse Practitioner1750862769
- Amy Belisle, MDPediatrics Physician1245427863
- Kaitlyn Bernard, PHARMDPharmacist1194201988
Verify Mary Ellen Davis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license R026808Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.0 times the Medicare Part D claims of the average nurse practitioner in 2024
6,678 Medicare Part D claims for 608 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 172 claims were for opioids.
Most prescribed
- Amlodipine Besylate329 claims
- Atorvastatin Calcium281 claims
- Rosuvastatin Calcium264 claims
- Levothyroxine Sodium252 claims
- Losartan Potassium237 claims
- Omeprazole234 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 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).
One hospital affiliation
- Central Maine Medical CenterLewiston, ME · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Mary Ellen Davis among 450 nurse practitioner records in Maine
Mary Ellen Davis is one of 450 nurse practitioner records with a practice address in Maine. 72% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 71% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1996 · median 2017 among the 258 with a school on file
- Record last updated2010 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 nurse practitioner records list a practice address in Lewiston
They are 30 of the 1,728 NPPES records with a practice address in Lewiston, and 450 nurse practitioner records in Maine.
All 450 in Maine → Every provider in Lewiston → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Miriam Charette, APRNLewiston, ME 042401205931201
- Kathleen Coleman, NPLewiston, ME 042401568425957
- Janet Cutter, FNPLewiston, ME 042401518914571
- Barbara GervaisLewiston, ME 042401679553655
- Jennifer Kimball, NPLewiston, ME 042401902871205
- Rosanne Marquis, NPLewiston, ME 042401366575284
- Jane MarshLewiston, ME 042401316926520
- Denyse Pelletier, ARNPLewiston, ME 042401184653545
Common questions
What is Mary Ellen Davis's NPI number?
Mary Ellen Davis's National Provider Identifier (NPI) is 1215917919, issued on Jan 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Ellen Davis located?
The NPPES record lists a practice address at 12 High St, Lewiston, ME, 04240. Phone: (207) 795-5700. Providers update this record themselves, so call before visiting.
How can I verify Mary Ellen Davis's license?
NPPES lists Maine license number R026808, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Ellen Davis prescribe under Medicare Part D?
In 2024, Mary Ellen Davis had 6,678 Medicare Part D claims for 608 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Mary Ellen Davis's MIPS final 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), 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.