Active NPI 1023075702 Individual Practitioner Male Practitioner

Dr. Jon Christopher Aster , MD PHD

Pathology - Anatomic Pathology • Boston, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Jon Aster, MD PHD is a certified Pathology - Anatomic Pathology practicing in Boston, MA. With approximately 39 years of clinical experience since graduating from University Of Michigan Medical School in 1987, Dr. Aster delivers high-quality medical care to the local community at 75 FRANCIS ST.

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

Frequently performed procedures and clinical services include bone marrow, smear interpretation, surgical pathology consultation and report on referred slides prepared elsewhere, special stained specimen slides to examine tissue including interpretation and report. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

75 Francis St
Department Of Pathology

Boston, MA 02115

Telephone 6177325500

Associated Practice Facility / Clinic

🏢 Brigham And Women's Hospital, Inc. Facility NPI 1972577799

Medicare Profile & Education

Medical School

University Of Michigan Medical School

Graduation Year

1987

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Pathology - Anatomic Pathology in Boston, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

39 Yrs +13.2 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

76.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Aster (39 Years) 39 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
85097 Bone marrow, smear interpretation	165	161	$201.00	$49.63
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	51	51	$351.75	$85.66
88313 Special stained specimen slides to examine tissue including interpretation and report	43	40	$50.07	$12.20
88325 Surgical pathology consultation and report, comprehensive	24	24	$606.00	$138.04

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
85097 Bone marrow, smear interpretation	286	264	$198.24	$51.01
88313 Special stained specimen slides to examine tissue including interpretation and report	57	51	$49.11	$12.65
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	11	11	$343.00	$88.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
85097 Bone marrow, smear interpretation	200	181	$203.80	$52.07
88313 Special stained specimen slides to examine tissue including interpretation and report	60	55	$50.60	$13.04
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	11	11	$354.00	$84.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
85097 Bone marrow, smear interpretation	98	96	$206.00	$53.51
88313 Special stained specimen slides to examine tissue including interpretation and report	28	27	$51.00	$13.28

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88341 Special stained specimen slides to examine tissue	171	31	$118.00	$31.80
88313 Special stained specimen slides to examine tissue including interpretation and report	96	71	$50.00	$13.55
85097 Bone marrow, smear interpretation	83	82	$202.00	$55.19
88305 Pathology examination of tissue using a microscope, intermediate complexity	55	50	$156.00	$42.32
88342 Special stained specimen slides to examine tissue, initial procedure	49	45	$205.00	$39.55
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	42	42	$344.00	$94.37
88311 Preparation of tissue for examination by removing any calcium present	38	38	$51.00	$13.95
88365 Genetic sequencing localization, initial procedure	16	15	$180.00	$49.01
88360 Microscopic genetic analysis of tumor	16	13	$225.00	$47.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88341 Special stained specimen slides to examine tissue	365	73	$117.02	$31.76
88313 Special stained specimen slides to examine tissue including interpretation and report	263	207	$49.05	$13.36
88305 Pathology examination of tissue using a microscope, intermediate complexity	223	198	$156.00	$42.09
88311 Preparation of tissue for examination by removing any calcium present	163	153	$52.00	$13.79
85097 Bone marrow, smear interpretation	145	140	$201.19	$54.32
88342 Special stained specimen slides to examine tissue, initial procedure	128	123	$205.00	$39.39
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	91	91	$345.48	$91.83
88365 Genetic sequencing localization, initial procedure	42	41	$181.90	$48.48
88360 Microscopic genetic analysis of tumor	38	27	$225.00	$46.95
88364 Genetic sequencing localization, each additional procedure	23	23	$143.00	$38.52
88344 Special stained specimen slides to examine tissue	12	12	$160.00	$42.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88341 Special stained specimen slides to examine tissue	242	61	$110.31	$31.72
85097 Bone marrow, smear interpretation	227	211	$196.35	$54.68
88313 Special stained specimen slides to examine tissue including interpretation and report	210	174	$48.24	$13.33
88305 Pathology examination of tissue using a microscope, intermediate complexity	157	136	$150.14	$42.14
88311 Preparation of tissue for examination by removing any calcium present	116	108	$51.28	$14.17
88342 Special stained specimen slides to examine tissue, initial procedure	89	85	$205.00	$39.74
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	70	70	$338.19	$93.58
88360 Microscopic genetic analysis of tumor	54	26	$219.43	$49.81
88365 Genetic sequencing localization, initial procedure	34	30	$173.59	$49.24
88364 Genetic sequencing localization, each additional procedure	13	13	$136.23	$38.90

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88341 Special stained specimen slides to examine tissue	150	41	$95.12	$31.32
88313 Special stained specimen slides to examine tissue including interpretation and report	141	125	$47.35	$13.13
85097 Bone marrow, smear interpretation	122	120	$188.73	$53.77
88305 Pathology examination of tissue using a microscope, intermediate complexity	97	90	$147.47	$41.82
88311 Preparation of tissue for examination by removing any calcium present	76	75	$49.38	$13.95
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	72	72	$324.17	$92.39
88342 Special stained specimen slides to examine tissue, initial procedure	60	59	$221.00	$39.16
88360 Microscopic genetic analysis of tumor	29	17	$213.03	$60.26
88365 Genetic sequencing localization, initial procedure	26	25	$190.46	$48.57
88364 Genetic sequencing localization, each additional procedure	12	12	$113.00	$38.34

Medical Specialties & State Licenses

CMS Verified: 2026-04-07

Pathology - Anatomic Pathology Primary Specialty

NUCC Taxonomy Code: 207ZP0101X

State License MA 74051

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

Secondary Practice Locations

55 Fruit St

Boston, MA 021142696

Phone: 6177262000

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Chi Yuen Chan , MD

Student in an Organized Health Care Education/Training Program

NPI 1003104373

Doctor of Medicine (M.D.)

Cara Richards

Physician Assistant

NPI 1003163965

Dr. Jaimie Manlucu , MD

Student in an Organized Health Care Education/Training Program

NPI 1003194242

Doctor of Medicine (M.D.)

Dr. Joseph Taylor , MD, PhD

Psychiatry & Neurology - Psychiatry

NPI 1003203936

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

Dr. Vanessa Welten , MD MPH

Transplant Surgery

NPI 1003207762

MDMPH

Lara Coakley

Nurse Practitioner - Family

NPI 1003221136

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active October 08, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location October 08, 2014

Registered at 75 FRANCIS ST, DEPARTMENT OF PATHOLOGY, BOSTON, MA 02115 (Tel: 6177325500)

📍

Updated Business Mailing Address October 08, 2014

Registered at 75 FRANCIS ST, DEPARTMENT OF PATHOLOGY, BOSTON, MA 02115 (Tel: 6172780032)

👤

Provider Name / Credentials Updated October 08, 2014

Recorded as JON ASTER, MD PHD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 08, 2014

Pathology (License #74051 in MA)

🟢

Initial NPI Registration & Enumeration April 27, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1023075702

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: April 27, 2006

Last Update: April 07, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

75 Francis St, Department Of Pathology

Boston, MA 02115

Phone: 6172780032

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.