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Dr. Alexander Bennett Stone , MD

Anesthesiology โ€ข Boston, MA

Active NPI 1013307248 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

75 Francis St
Boston, MA 021156110

Call 6177325500 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

75 Francis St

Boston, MA 021156110

Telephone 6177325500
Organization at the Same NPPES Address or Phone
Brigham And Women's Hospital, Inc. Facility NPI 1972577799

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 3 distinct additional practice-address records in Baltimore, MD; Boston, MA; New York, NY. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 2 distinct group names: Brigham And Womens Physicians Organization Inc; Massachusetts General Physicians Organization Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

Johns Hopkins University School Of Medicine

Graduation Year

2017

Medicare patients

270 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $29,694 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $22,913 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $73.20 in 2021

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2021.

Guide: How to read an Open Payments record

Years since graduation

9 years (graduated 2017)

CMS Doctors and Clinicians data list 2017 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2015

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Stone has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Stone as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Boston and Massachusetts

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 80% of clinicians listed under Anesthesiology in Boston, MA (2024, 528 clinicians with data). Median for this group: 118. Middle half: 53 to 224.

More Medicare Part B services than 75% of clinicians listed under Anesthesiology in Massachusetts (2024, 1,137 clinicians with data). Median for this group: 136. Middle half: 66 to 248.

Medicare-allowed amount

A higher Medicare-allowed amount than 70% of clinicians listed under Anesthesiology in Boston, MA (2024, 528 clinicians with data). Median for this group: $15,862. Middle half: $7,477 to $33,650.

A higher Medicare-allowed amount than 70% of clinicians listed under Anesthesiology in Massachusetts (2024, 1,137 clinicians with data). Median for this group: $16,429. Middle half: $8,286 to $31,402.

Paid by Medicare

A higher Medicare payment amount than 70% of clinicians listed under Anesthesiology in Boston, MA (2024, 528 clinicians with data). Median for this group: $12,488. Middle half: $5,940 to $26,601.

A higher Medicare payment amount than 70% of clinicians listed under Anesthesiology in Massachusetts (2024, 1,137 clinicians with data). Median for this group: $13,131. Middle half: $6,643 to $24,992.

1,083 active clinicians are listed under Anesthesiology with a practice address in Boston, MA (2,090 in Massachusetts).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Boston

1.8% of these 1,083 clinicians have the CMS telehealth indicator.

69.2% of these 1,083 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Open Payments (2021), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2021

Program year 2021 (payments made January 1 โ€“ December 31, 2021): fewer than 11 records totaling $73.20.

Manufacturer Payment Nature Product Type Amount ($)
Acacia Pharma Inc
Food and Beverage
In-kind items and services
BYFAVO General $73.20

Source: CMS Open Payments, program year 2021, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2021โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2022โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
111 57 $207.26 $50.91
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve)
24 24 $290.00 $63.64
01996 Daily hospital management of continuous spinal drug administration
23 13 $465.00 $63.78
01402 Anesthesia for procedure for total knee joint replacement
17 17 $2762.65 $381.02
36620 Insertion of artery tube for blood sampling or infusion through skin
16 16 $278.00 $44.68
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes
16 16 $407.00 $85.04
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope
12 11 $1167.67 $155.23
01214 Anesthesia for total hip replacement
12 12 $3076.75 $426.06
01480 Anesthesia for other procedure on lower leg, ankle, and foot bones
12 12 $813.75 $97.67
01230 Anesthesia for procedure on upper 2/3rd of thigh bone
11 11 $2976.00 $395.26

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-01-28
Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

License # reported to NPPES MA 281609

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Massachusetts Board of Registration in Medicine.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - ANESTHESIOLOGY

Medicare Enrollment ID

I20220511001890

Enrollment State Jurisdiction

MA

PECOS Control ID

3678823598

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Massachusetts General Physicians Organization Inc

55 Fruit St, Boston, MA 021142696

Phone: 6177240287

Brigham And Womens Physicians Organization Inc

75 Francis St, Boston, MA 021156110

Phone: 6177325500

Secondary Practice Locations

600 North Wolfe Street, The Johns Hopkins Hospital

Baltimore, MD 212872109

Phone: 4109555000

55 Fruit St

Boston, MA 021142696

Phone: 6177263030

535 E 70th St

New York, NY 100214823

Phone: 2126061000

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

31 listed
Dr. Jon Aster , MD PHD

Pathology - Anatomic Pathology

NPI 1023075702

MDPHD

Dr. Hebist Berhane , MD

Internal Medicine

NPI 1013327600

Doctor of Medicine (M.D.)

Dr. Matthew Carey , MD, MBA

Internal Medicine - Cardiovascular Disease

NPI 1013536143

Doctor of Medicine (M.D.), Master of Business Administration

Dr. Safia Chatur , MD

Internal Medicine - Cardiovascular Disease

NPI 1003426347

Doctor of Medicine (M.D.)

William Clippinger , PA-C

Physician Assistant

NPI 1013412238

Physician Assistant (Certified)

Lara Coakley

Nurse Practitioner - Family

NPI 1003221136

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

15 Historical Events
๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) January 28, 2026

Anesthesiology (license number reported to NPPES: MA 281609)

๐Ÿ“
Updated Practice Location May 17, 2022

Registered at 75 FRANCIS ST, BOSTON, MA 021156110 (Tel: 6177325500)

๐Ÿ“
Updated Business Mailing Address May 17, 2022

Registered at 75 FRANCIS ST, BOSTON, MA 021156106 (Tel: 6177325500)

๐Ÿ“
Updated Practice Location July 31, 2021

Registered at 535 E 70TH ST, NEW YORK, NY 100214823 (Tel: 2126061000)

๐Ÿ“
Updated Business Mailing Address July 31, 2021

Registered at 535 E 70TH ST, NEW YORK, NY 100214898

๐Ÿ“
Updated Practice Location April 19, 2019

Registered at 75 FRANCIS ST, BOSTON, MA 021156110 (Tel: 6177325500)

๐Ÿ“
Updated Business Mailing Address April 19, 2019

Registered at 75 FRANCIS ST, BOSTON, MA 021156110 (Tel: 6177325500)

๐Ÿ‘ค
Provider Name / Credentials Updated April 19, 2019

Recorded as ALEXANDER STONE, MD

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 19, 2019

Anesthesiology (license number reported to NPPES: MA 272565)

โœ…
NPI Profile Active January 26, 2015

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) January 26, 2015

Registered at 600 NORTH WOLFE STREET, THE JOHNS HOPKINS HOSPITAL, BALTIMORE, MD 212872109 (Tel: 4109555000)

๐Ÿ“
Business Mailing Address (Initial Record) January 26, 2015

Registered at 733 RUTLAND AVE., THE JOHNS HOPKINS SCHOOL OF MEDICINE, BALTIMORE, MD 212052109 (Tel: 4109553080)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) January 26, 2015

Recorded as ALEXANDER STONE

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) January 26, 2015

Student in an Organized Health Care Education/Training Program

๐ŸŸข
Initial NPI Registration & Enumeration January 26, 2015

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1013307248
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 26, 2015
Last Update: January 28, 2026
Sole Proprietor: No

Other Anesthesiology Specialists in Boston

All Anesthesiology Specialists in Boston

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Directory navigation, in NPI number order.

Mailing Address

75 Francis St

Boston, MA 021156106

Phone: 6177325500

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.