Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1184915928 Individual Practitioner Female Practitioner

Dr. Sarah Elizabeth Johnstone , MD, PhD

Pathology - Anatomic Pathology • Boston, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Sarah Johnstone, MD, PhD is a certified Pathology - Anatomic Pathology practicing in Boston, MA. With approximately 14 years of clinical experience since graduating from Johns Hopkins University School Of Medicine in 2012, Dr. Johnstone delivers high-quality medical care to the local community at 55 FRUIT ST.

Dr. Johnstone is affiliated with Brigham And Womens Physicians Organization Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include special stained specimen slides to examine tissue, pathology examination of tissue using a microscope, intermediate complexity, pathology examination of tissue using a microscope, moderately high complexity. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

55 Fruit St
Massachusetts General Hospital

Boston, MA 021142621

Telephone 6172302514
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

Johns Hopkins University School Of Medicine

Graduation Year

2012

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Pathology - Anatomic Pathology in Boston, MA

Established Specialist (10-20 Yrs)
Practitioner Clinical Experience
14 Yrs -11.8 yrs vs City Avg
City Avg: 25.8 Yrs
State Avg: 35.7 Yrs
Regional Practice Density
201 Specialists

Practicing in Boston, MA (303 Statewide)

Telehealth Adoption Rate
0.5% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
76.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Johnstone (14 Years) 14 Yrs
Boston Specialty Average (25.8 Years) 25.8 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
88341 Special stained specimen slides to examine tissue
62 16 $117.00 $28.65
88305 Pathology examination of tissue using a microscope, intermediate complexity
58 20 $158.36 $38.18
88307 Pathology examination of tissue using a microscope, moderately high complexity
56 25 $342.82 $83.88
88342 Special stained specimen slides to examine tissue, initial procedure
29 20 $205.00 $35.68
88309 Pathology examination of tissue using a microscope, high complexity
20 17 $602.00 $147.45

Medical Specialties & State Licenses

Pathology - Anatomic Pathology Primary Specialty

NUCC Taxonomy Code: 207ZP0101X

State License MA 261944

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

Hospital & Practice Group Affiliations

Brigham And Womens Physicians Organization Inc

75 Francis St, Boston, MA 021156110

Phone: 6177325500

Practice Associates & Co-Workers

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

40 Associated Practitioners
Dr. Stuti Shroff , MD, MBBS

Pathology - Anatomic Pathology

NPI 1003050691

Doctor of Medicine (M.D.), Bachelor of Medicine, Bachelor of Surgery (M.B.B.S.)

Dr. Nancy Wang , MD

Internal Medicine - Hematology & Oncology

NPI 1003101056

Doctor of Medicine (M.D.)

NPI 1003103813

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

Dr. John Danko , DO

Physical Medicine & Rehabilitation

NPI 1003109596

Doctor of Osteopathic Medicine (D.O.)

Dr. Michael Lobritz , MD, PhD

Internal Medicine - Infectious Disease

NPI 1003122540

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

Kelly Trecartin , NP

Nurse Practitioner - Acute Care

NPI 1003130469

Nurse Practitioner

Career & Practice History Timeline

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

11 Historical Events
NPI Profile Active April 28, 2017

NPI status registered as active in NPPES database

📍
Updated Practice Location April 28, 2017

Registered at 55 FRUIT ST, MASSACHUSETTS GENERAL HOSPITAL, BOSTON, MA 021142621 (Tel: 6172302514)

📍
Updated Business Mailing Address April 28, 2017

Registered at 243 CONCORD AVE APT 4, CAMBRIDGE, MA 021381360 (Tel: 6172302514)

👤
Provider Name / Credentials Updated April 28, 2017

Recorded as SARAH JOHNSTONE, M.D., PH.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 28, 2017

Pathology (License #261944 in MA)

NPI Profile Active April 27, 2011

NPI status registered as active in NPPES database

📍
Updated Practice Location April 27, 2011

Registered at JOHNS HOPKINS HOSPITAL, 600 NORTH WOLFE STREET, BALTIMORE, MD 212870001 (Tel: 6172302514)

📍
Updated Business Mailing Address April 27, 2011

Registered at 3811 CANTERBURY RD, APT. 803, BALTIMORE, MD 212182340 (Tel: 6172302514)

👤
Provider Name / Credentials Updated April 27, 2011

Recorded as SARAH JOHNSTONE

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 27, 2011

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration April 27, 2011

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: 1184915928
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 27, 2011
Last Update: April 28, 2017
Sole Proprietor: No

Mailing Address

243 Concord Ave Apt 4

Cambridge, MA 021381360

Phone: 6172302514

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.