Are you Dr. Aster? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileBased in Boston, MA, Jon C. Aster, MD PHD is listed in the NPI registry under pathology. Jon graduated from University of Michigan Medical School in 1987. According to Medicare claims data, Jon cared for 276 Medicare patients across 283 services. The services billed most often include bone marrow, smear interpretation, surgical pathology consultation and report on referred slides prepared elsewhere, and special stained specimen slides to examine tissue including interpretation and report. NPI 1023075702 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
75 FRANCIS ST DEPARTMENT OF PATHOLOGY
Boston, MA 02115
55 Fruit St
Boston, MA 02114
Within Pathology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Autoimmune & Joints
Autopsy & Forensic
Blood & Metabolism
Blood Disorders
Cancer
Cervical & Gynecologic
Digestive
Digestive System
Endocrine
Genetics
Hormones
Immune System
Infections
Kidney
Liver
Metabolic & Routine Lab
Pregnancy & Fertility
Skin Cancer
Women's Health
Autopsy & Forensic
Blood Tests
Cytology
Cytology & Screening
Genetic & Molecular Tests
Genetics
Immune & Allergy Tests
Infection Testing
Infection Tests
Lab & Blood Tests
Pathology Review
Pregnancy & Fertility
Routine Lab Tests
Tissue Biopsy
283 services · 276 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Bone marrow, smear interpretation | Lab test | 85097 |
165 | More than most peers in Pathology |
| Surgical pathology consultation and report on referred slides prepared elsewhere | Lab test | 88321 |
51 | More often than most peers in Pathology |
| Special stained specimen slides to examine tissue including interpretation and report | Lab test | 88313 |
43 | As often as other peers in Pathology |
| Surgical pathology consultation and report, comprehensive | Lab test | 88325 |
24 | As often as other peers in Pathology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Aster is a pathologist in Boston, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pathology”.
NPI registry
Dr. Aster is listed at 75 Francis St Department of Pathology, Boston, MA 02115. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (617) 732-5500. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Aster's National Provider Identifier is 1023075702. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Aster attended University of Michigan Medical School, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
Dr. Aster has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Aster the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Aster. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.