Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1669105961 Individual Practitioner Female Practitioner

Mackenzie Case , MPAS, PA-C

Physician Assistant • Boston, MA

Professional Overview & Biography Verified Profile Summary

Mackenzie Case, MPAS, PA-C is a registered healthcare professional specializing in Physician Assistant in Boston, MA. Practice services are available at 300 LONGWOOD AVE under active NPI credentials.

Frequently performed procedures and clinical services include established patient outpatient office visit, new patient outpatient office visit, detection test by immunoassay technique for severe acute respiratory syndrome coronavirus. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

300 Longwood Ave

Boston, MA 021155724

Telephone 6173556000
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Boston, MA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 7.9 Yrs
State Avg: 10.0 Yrs
Regional Practice Density
1664 Specialists

Practicing in Boston, MA (4746 Statewide)

Telehealth Adoption Rate
15.4% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
73.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

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
99213 Established patient office or other outpatient visit, typically 15 minutes
100 93 $230.00 $73.97
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
73 73 $330.00 $90.62
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
67 63 $334.00 $103.69
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
39 39 $502.00 $136.00
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus
31 31 $154.00 $33.79
87428 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza
27 27 $204.00 $62.58
87804 Detection test by immunoassay with direct visual observation for influenza virus
24 12 $49.00 $16.22
71046 X-ray of chest, 2 views
24 24 $94.00 $26.10
94640 Inhalation treatment for airway obstruction or sputum production
14 14 $125.00 $6.39
J7620 Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme
12 11 $1.00 $0.19
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)
12 12 $49.00 $16.20
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention
12 11 $79.00 $11.52

Medical Specialties & State Licenses

CMS Verified: 2025-05-07
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License MA PA101332

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

NUCC Taxonomy Code: 363A00000X

State License TX PA15889

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.

Practice Associates & Co-Workers

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

40 Associated Practitioners
Anna Roglieri

Nurse Practitioner - Psychiatric/Mental Health

NPI 1003035478
Dr. Stephen Flynn , MD

Anesthesiology - Pediatric Anesthesiology

NPI 1003049842

Doctor of Medicine (M.D.)

Dr. Elizabeth Taglauer , MD, PhD

Pediatrics - Neonatal-Perinatal Medicine

NPI 1003127119

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Dr. Cailyn Rood , MD

Pediatrics - Pediatric Critical Care Medicine

NPI 1003159336

Doctor of Medicine (M.D.)

Dr. Peter Hsu , MD

Pediatrics - Pediatric Hematology-Oncology

NPI 1003173592

Doctor of Medicine (M.D.)

NPI 1003182403

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

8 Historical Events
📍
Updated Practice Location May 07, 2025

Registered at 300 LONGWOOD AVE, BOSTON, MA 021155724 (Tel: 6173556000)

📍
Updated Business Mailing Address May 07, 2025

Registered at 300 LONGWOOD AVE, BOSTON, MA 021155724 (Tel: 6173556000)

NPI Profile Active July 05, 2022

NPI status registered as active in NPPES database

📍
Updated Practice Location July 05, 2022

Registered at 1400 VALLEYVIEW DR, CLARKSTON, MI 483484096 (Tel: 2483912273)

📍
Updated Business Mailing Address July 05, 2022

Registered at 1400 VALLEYVIEW DR, CLARKSTON, MI 483484096

👤
Provider Name / Credentials Updated July 05, 2022

Recorded as MACKENZIE CASE, MPAS, PA-C

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 05, 2022

Physician Assistant (License #PA15889 in TX)

🟢
Initial NPI Registration & Enumeration July 05, 2022

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: 1669105961
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: July 05, 2022
Last Update: May 07, 2025
Sole Proprietor: No

Mailing Address

300 Longwood Ave

Boston, MA 021155724

Phone: 6173556000

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.