Jenner Elizabeth Greil, ARNP
Family Nurse Practitioner · Portland, ME
Jenner Elizabeth Greil, ARNP is a family nurse practitioner with a practice address in Portland, Maine, and NPI 1871748772, issued on Nov 20, 2008. Check the license (Maine CNP101013, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jenner Elizabeth Greil
- Credential
- ARNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- CNP101013 ME
Self-reported in NPPES; status is on the state search - Practice location
- 331 Veranda St, Portland, ME 04103
- Phone
- (207) 828-2402
- Enumerated
- Nov 20, 2008
- Record last updated
- Sep 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (207) 828-2425
- Medicaid ID
- 434645102 ME
- Medicare enrollment
- Enrolled (PECOS I20100617000423); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2008
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 1,274 in Maine → Look up another NPI →
Also registered at 331 Veranda St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Patrick Connolly, MDFamily Medicine Physician1982655098
- Douglas Couper, MDInternal Medicine Physician1154371243
Verify Jenner Elizabeth Greil in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license CNP101013Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average family nurse practitioner in 2024
3,297 Medicare Part D claims for 326 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 130 claims were for opioids.
Most prescribed
- Atorvastatin Calcium178 claims
- Levothyroxine Sodium153 claims
- Lisinopril134 claims
- Omeprazole109 claims
- Famotidine95 claims
- Rosuvastatin Calcium90 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
- Martin's Point Health Care, Inc.Portland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jenner Elizabeth Greil among 1,274 family nurse practitioner records in Maine
Jenner Elizabeth Greil, ARNP is one of 1,274 family nurse practitioner records with a practice address in Maine. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 24% of them.
- NPI issued2008 · 24% of these records are older, 73% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2008 · median 2018 among the 811 with a school on file
- Record last updated2020 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
135 family nurse practitioner records list a practice address in Portland
They are 135 of the 6,022 NPPES records with a practice address in Portland, and 1,274 family nurse practitioner records in Maine.
All 1,274 in Maine → Every provider in Portland → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Michelle AtienzaPortland, ME 041031710399506
- Jennifer Burgess, FNP-CPortland, ME 041031316465636
- Kathy Dahms, FNPPortland, ME 041031407961162
- Maria Glad, MS. FNP-BCPortland, ME 041031316345143
- Kristin Graczyk, APRNPortland, ME 041031932467032
- Kathryn Hamann, NPPortland, ME 041031982030961
- Carri Kivela, M.S., N.P.-C.Portland, ME 041031174732242
- Sarah Labonte, NP-CPortland, ME 041031164730685
Common questions
What is Jenner Elizabeth Greil, ARNP's NPI number?
Jenner Elizabeth Greil, ARNP's National Provider Identifier (NPI) is 1871748772, issued on Nov 20, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Jenner Elizabeth Greil, ARNP located?
The NPPES record lists a practice address at 331 Veranda St, Portland, ME, 04103. Phone: (207) 828-2402. Providers update this record themselves, so call before visiting.
How can I verify Jenner Elizabeth Greil, ARNP's license?
NPPES lists Maine license number CNP101013, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
How much does Jenner Elizabeth Greil, ARNP prescribe under Medicare Part D?
In 2024, Jenner Elizabeth Greil, ARNP had 3,297 Medicare Part D claims for 326 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.