Dr. Alexander Bennett Stone , MD
Anesthesiology โข Boston, MA
75 Francis St
Boston, MA 021156110
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Alexander Stone is listed in NPPES under Anesthesiology.
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NPI assigned on January 26, 2015; this date does not establish years in practice.
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Published CMS data list 254 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99231 โ Subsequent hospital care with straightforward or low level of medical decision making, per day: 111 service units.
- 64447 โ Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve): 24 service units.
- 01996 โ Daily hospital management of continuous spinal drug administration: 23 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 10 records in the table ยท Guide: How to read Medicare Part B data
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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.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 26 in 2022 to 254 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2022โ2024.
Practice Location & Contact Primary Location
75 Francis St
Boston, MA 021156110
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
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
Johns Hopkins University School Of Medicine
2017
What Public CMS Data Show
Anesthesiology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
270 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
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.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
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.
Years since graduation
9 years (graduated 2017)
CMS Doctors and Clinicians data list 2017 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished 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.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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, โDoes your provider accept Medicare as full payment?โ
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.
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.
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.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
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.
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.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 877% from 26 in 2022 to 254 in 2024.
- 2022: 26
- 2023: 192
- 2024: 254
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Medicare-allowed amount
Medicare-allowed amount increased 1132% from $2,411 in 2022 to $29,694 in 2024.
- 2022: $2,411
- 2023: $18,452
- 2024: $29,694
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Paid by Medicare
Paid by Medicare increased 1093% from $1,921 in 2022 to $22,913 in 2024.
- 2022: $1,921
- 2023: $14,521
- 2024: $22,913
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2021 only.
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
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
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2021โ2023 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, 2022โ2024; 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 |
|---|---|---|---|---|
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99231
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
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111 | 57 | $207.26 | $50.91 |
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64447
Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve)
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24 | 24 | $290.00 | $63.64 |
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01996
Daily hospital management of continuous spinal drug administration
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23 | 13 | $465.00 | $63.78 |
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01402
Anesthesia for procedure for total knee joint replacement
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17 | 17 | $2762.65 | $381.02 |
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36620
Insertion of artery tube for blood sampling or infusion through skin
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16 | 16 | $278.00 | $44.68 |
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99221
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes
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16 | 16 | $407.00 | $85.04 |
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00731
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope
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12 | 11 | $1167.67 | $155.23 |
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01214
Anesthesia for total hip replacement
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12 | 12 | $3076.75 | $426.06 |
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01480
Anesthesia for other procedure on lower leg, ankle, and foot bones
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12 | 12 | $813.75 | $97.67 |
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01230
Anesthesia for procedure on upper 2/3rd of thigh bone
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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: 2026-01-28NUCC Taxonomy Code: 207L00000X
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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ANESTHESIOLOGY
I20220511001890
MA
3678823598
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.
Pathology - Anatomic Pathology
MDPHD
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.), Master of Business Administration
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Nurse Practitioner - Family
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Anesthesiology (license number reported to NPPES: MA 281609)
Registered at 75 FRANCIS ST, BOSTON, MA 021156110 (Tel: 6177325500)
Registered at 75 FRANCIS ST, BOSTON, MA 021156106 (Tel: 6177325500)
Registered at 535 E 70TH ST, NEW YORK, NY 100214823 (Tel: 2126061000)
Registered at 535 E 70TH ST, NEW YORK, NY 100214898
Registered at 75 FRANCIS ST, BOSTON, MA 021156110 (Tel: 6177325500)
Registered at 75 FRANCIS ST, BOSTON, MA 021156110 (Tel: 6177325500)
Recorded as ALEXANDER STONE, MD
Anesthesiology (license number reported to NPPES: MA 272565)
NPI status registered as active in NPPES database
Registered at 600 NORTH WOLFE STREET, THE JOHNS HOPKINS HOSPITAL, BALTIMORE, MD 212872109 (Tel: 4109555000)
Registered at 733 RUTLAND AVE., THE JOHNS HOPKINS SCHOOL OF MEDICINE, BALTIMORE, MD 212052109 (Tel: 4109553080)
Recorded as ALEXANDER STONE
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Anesthesiology Specialists in Boston
- Dr. Christopher Aiudi, MD, PharmD
- Douglas Barnes
- Dr. Sarah Wiser, MD
- Dr. Caitlin Mcginty, MD
- Dr. John Abadir, MD
- Dr. Monica Gran, MD
More public profiles in Massachusetts
Directory navigation, in NPI number order.
- Adviti Shah, PT Physical Therapist ยท Natick
- Mary Kate Preite, NP Nurse Practitioner ยท Boston
- Angela Terry, FNP Nurse Practitioner - Family ยท Medway
- Jennifer Grace, OD Optometrist ยท Duxbury
- Megan Wiedler, DPT Physical Therapist ยท East Longmeadow
- Michael Coyne Physical Therapist ยท Walpole
- Anna Korogodina, MD Internal Medicine - Rheumatology ยท Worcester
- Brenda Lin Student in an Organized Health Care Education/Training Program ยท Boston
- Kate Cappetta, DO Internal Medicine - Endocrinology, Diabetes & Metabolism ยท Boston
- Dana Palmateer, NP Nurse Practitioner ยท Medford
- Margarita Abramovich, MD Psychiatry & Neurology - Psychiatry ยท Pittsfield
- Marlene Putnam, FNP Nurse Practitioner - Family ยท Boston
Mailing Address
75 Francis St
Boston, MA 021156106
Phone: 6177325500