DR. JOHN M SLOAN M.D.
NPI 1659345320
Internal Medicine - Hematology in Boston, MA
About Dr. John M Sloan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN M SLOAN M.D. (NPI 1659345320) is an individual hematology provider in Boston, Massachusetts, licensed in Massachusetts (224033) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Boston Medical Center, and is a graduate of Yale University School Of Medicine (2001).
NPPES Registry Identity
Specialties & Licenses 3
Other Names 1
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. John M Sloan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Boston Medical Center
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02118 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Sloan's NPI number?
The NPI number for John Sloan is 1659345320. It was assigned to this individual provider in the NPPES registry on February 17, 2006. The provider is also known as John Mark Sloan.
Where is John Sloan located?
John Sloan practices at 830 Harrison Ave, 3rd Fl Moakley Bldg, Boston, MA 02118. The listed phone number is (617) 638-6428.
What is John Sloan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.
Is John Sloan enrolled in Medicare?
Yes. John Sloan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does John Sloan accept?
Health plans from Anthem Blue Cross and Blue Shield list John Sloan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is John Sloan affiliated with any hospitals?
According to CMS data, John Sloan is affiliated with Boston Medical Center.
When was this NPI record last updated?
The NPPES record for John Sloan was last updated on May 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
