Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1972167377 Individual Practitioner Female Practitioner

Haley Estabrook Acker , PA-C

Physician Assistant • Portland, ME

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Haley Acker, PA-C is a certified Physician Assistant practicing in Portland, ME. With approximately 6 years of clinical experience since completing medical education in 2020, Haley Acker delivers high-quality medical care to the local community at 22 BRAMHALL ST.

Haley Acker maintains professional affiliations with Mainehealth New Hampshire Ambulatory Care, Mainehealth and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, hospital discharge day management, emergency department visit for life threatening or functioning severity. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

22 Bramhall St

Portland, ME 041023134

Telephone 2076622273
Fax 2076626324
Associated Practice Facility / Clinic
🏢 Mainehealth Facility NPI 1760436216

Medicare Profile & Education

Medical School

Other

Graduation Year

2020

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Portland, ME

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
6 Yrs -4.7 yrs vs City Avg
City Avg: 10.7 Yrs
State Avg: 13.7 Yrs
Regional Practice Density
243 Specialists

Practicing in Portland, ME (992 Statewide)

Telehealth Adoption Rate
7.4% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
85.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Acker (6 Years) 6 Yrs
Portland Specialty Average (10.7 Years) 10.7 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
20 20 $783.26 $106.51
99238 Hospital discharge day management, 30 minutes or less
18 18 $425.97 $69.69
99285 Emergency department visit for life threatening or functioning severity
14 14 $963.95 $147.40

Medical Specialties & State Licenses

CMS Verified: 2026-06-25
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License ME PA2108

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Physician Assistant - Surgical

NUCC Taxonomy Code: 363AS0400X

State License NH 3553

Definition to come...

Physician Assistant - Surgical

NUCC Taxonomy Code: 363AS0400X

State License ME PA2108

Definition to come...

Physician Assistant

NUCC Taxonomy Code: 363A00000X

State License NH 3553

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Hospital & Practice Group Affiliations

Mainehealth

22 Bramhall St, Portland, ME 041023134

Phone: 2078859905

Mainehealth

335 Brighton Ave, Portland, ME 041022363

Phone: 2076628000

Mainehealth New Hampshire Ambulatory Care

1976 White Mountain Hwy, North Conway, NH 038605147

Phone: 6033564940

Mainehealth

335 Brighton Ave, Portland, ME 041022363

Phone: 2076628600

Secondary Practice Locations

25 June St

Sanford, ME 040732621

Phone: 2074907450

335 Brighton Ave

Portland, ME 041022314

Phone: 2076620111

3073 White Mountain Hwy

North Conway, NH 038607101

Phone: 6033565461

1976 White Mountain Hwy Ste 105

North Conway, NH 038605147

Phone: 6033564940

1 Medical Center Dr

Biddeford, ME 040059422

Phone: 2072945000

Practice Associates & Co-Workers

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

17 Associated Practitioners
Melissa Schulz , ACPNP

Nurse Practitioner - Acute Care

NPI 1073394524
Elizabeth Bailey , PA

Physician Assistant - Medical

NPI 1215004809

Physician Assistant

Diana Sands , NP

Nurse Practitioner - Neonatal

NPI 1255506176

Nurse Practitioner

Adam Clay , PNP-AC, PC

Nurse Practitioner - Pediatrics, Critical Care

NPI 1316343858

PNPAC, PC

Chelsea Douglass , NNP

Nurse Practitioner - Neonatal

NPI 1417494402
Janice Dudley , PNP

Nurse Practitioner - Pediatrics

NPI 1427019694

Pediatric Nurse Practitioner

Career & Practice History Timeline

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

10 Historical Events
📍
Updated Practice Location November 02, 2020

Registered at 22 BRAMHALL ST, PORTLAND, ME 041023134 (Tel: 2076622273)

📍
Updated Business Mailing Address September 14, 2020

Registered at 22 BRAMHALL ST, PORTLAND, ME 041023134 (Tel: 2076620111)

👤
Provider Name / Credentials Updated September 14, 2020

Recorded as HALEY ACKER, PA-C

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 14, 2020

Physician Assistant (License #PA2108 in ME)

NPI Profile Active May 01, 2019

NPI status registered as active in NPPES database

📍
Updated Practice Location May 01, 2019

Registered at 716 STEVENS AVE, PORTLAND, ME 041032656 (Tel: 2072830171)

📍
Updated Business Mailing Address May 01, 2019

Registered at 716 STEVENS AVE, PORTLAND, ME 041032656 (Tel: 2072830171)

👤
Provider Name / Credentials Updated May 01, 2019

Recorded as HALEY ACKER

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 01, 2019

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration May 01, 2019

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: 1972167377
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 01, 2019
Last Update: June 25, 2026
Sole Proprietor: No

Mailing Address

22 Bramhall St

Portland, ME 041023134

Phone: 2076622273

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.