Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1821684457 Individual Practitioner Female Practitioner

Allison E. Shaffer

Nurse Practitioner • Portland, ME

Professional Overview & Biography Verified Profile Summary

Allison Shaffer is a certified Nurse Practitioner practicing in Portland, ME. With approximately 1 years of clinical experience since completing medical education in 2025, Allison Shaffer delivers high-quality medical care to the local community at 17 BISHOP ST.

Allison Shaffer does not directly accept Medicare assignment.

Practice Location & Contact Primary Location

Practice Address

17 Bishop St

Portland, ME 041032659

Telephone 2072037933
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

Other

Graduation Year

2025

Medicare Assignment

Not Specified

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Nurse Practitioner in Portland, ME

Rising Specialist (<5 Yrs)
Practitioner Clinical Experience
1 Yrs -11.1 yrs vs City Avg
City Avg: 12.1 Yrs
State Avg: 12.8 Yrs
Regional Practice Density
67 Specialists

Practicing in Portland, ME (460 Statewide)

Telehealth Adoption Rate
19.4% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Shaffer (1 Years) 1 Yrs
Portland Specialty Average (12.1 Years) 12.1 Yrs

Medical Specialties & State Licenses

CMS Verified: 2025-09-05
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

State License ME CNP251331

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Registered Nurse

NUCC Taxonomy Code: 163W00000X

State License ME RN72170

(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

8 Associated Practitioners
Kassadi Mcpherson

Counselor - Addiction (Substance Use Disorder)

NPI 1093655896
Mackenzie Heathco

Counselor - Addiction (Substance Use Disorder)

NPI 1104767516
Margaret Cushman , CADC

Counselor - Addiction (Substance Use Disorder)

NPI 1356292270

Certified Alcohol and Drug Counselor

Anna Newman

Counselor - Addiction (Substance Use Disorder)

NPI 1588503544
Linda Drukman

Counselor - Addiction (Substance Use Disorder)

NPI 1700725587
Joseph Travis , LADC

Counselor - Addiction (Substance Use Disorder)

NPI 1861344251

Licensed Alcohol and Drug Counselor

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

9 Historical Events
🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 05, 2025

Nurse Practitioner (License #CNP251331 in ME)

📍
Updated Practice Location July 31, 2024

Registered at 17 BISHOP ST, PORTLAND, ME 041032659 (Tel: 2072037933)

👤
Provider Name / Credentials Updated July 31, 2024

Recorded as ALLISON SHAFFER

NPI Profile Active December 17, 2020

NPI status registered as active in NPPES database

📍
Updated Practice Location December 17, 2020

Registered at 51 MARKET ST, SOUTH PORTLAND, ME 041063617 (Tel: 6033213760)

📍
Updated Business Mailing Address December 17, 2020

Registered at 80 MUSSEY ST, SOUTH PORTLAND, ME 041062009 (Tel: 6033213760)

👤
Provider Name / Credentials Updated December 17, 2020

Recorded as ALLISON SHEPARD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) December 17, 2020

Registered Nurse (License #RN72170 in ME)

🟢
Initial NPI Registration & Enumeration December 17, 2020

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1821684457
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: December 17, 2020
Last Update: September 05, 2025
Sole Proprietor: No

Mailing Address

80 Mussey St

South Portland, ME 041062009

Phone: 6033213760

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.