Jenner Greil, ARNP
NPI 1871748772 · Family Nurse Practitioner · Portland, ME
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jenner Greil, ARNP is a Family Nurse Practitioner provider in Portland, ME (NPI 1871748772).
Provider details
- NPI number
- 1871748772
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- CNP101013 (ME)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
356 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 93 | $78 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 70 | $7 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 41 | $10 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 31 | $62 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 30 | $13 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 30 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 70 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 178 | 54 |
| Levothyroxine Sodium | 153 | 42 |
| Lisinopril | 134 | 38 |
| Omeprazole | 109 | 31 |
| Famotidine | 95 | 33 |
| Rosuvastatin Calcium | 90 | 27 |
| Losartan Potassium | 89 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-11-20
- Last updated
- 2020-09-29
- Certified
- 2020-09-29
Frequently asked questions
- What is Jenner Greil's NPI number?
- Jenner Greil's National Provider Identifier (NPI) is 1871748772, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jenner Greil's specialty?
- Jenner Greil is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jenner Greil located?
- Jenner Greil's practice location on file with NPPES is 331 Veranda St, Portland, ME 04103-5545.
- What is Jenner Greil's phone number?
- The practice phone number listed in the NPPES registry for Jenner Greil is (207) 828-2402.
- Does Jenner Greil accept Medicare?
- Jenner Greil is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jenner Greil's NPI active?
- Yes — Jenner Greil's NPI (1871748772) is active in the NPPES registry as of the last update on 2020-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.