Dr. Steven Mach, MD

  • Boston, MA
  • Anesthesiologist
NPI1437641628PAC ID7911252937
Medicare patients, 2024
116
Part D claims, 2018
13
Hospital affiliations
2
Industry payments
$4,814
Medical groups
3
Practice address
75 Francis Street, Boston, MA 02115
Practice phone
Call (617) 732-5500
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Brigham and Women's Hospital

Hospital · Boston, Massachusetts

See all 6 affiliations

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Dr. Steven Mach is an anesthesiologist in Boston, Massachusetts

Dr. Mach practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.

Dr. Mach's NPI, 1437641628, was assigned on June 4, 2018. Dr. Mach graduated from University of Massachusetts Medical School in 2018. Dr. Mach holds Massachusetts license 1019921.

NPI and contact details
Medicare PAC ID
7911252937
NPI enumeration date
June 4, 2018
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(617) 732-5500
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
34
Medical school graduation
2018

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Steven Mach practices at Brigham and Women's Hospital in Boston, Massachusetts

Dr. Mach's primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.

Source: Dmand AI Affiliation Data

Dr. Steven Mach is affiliated with 3 sites of care and 3 medical groups

Dr. Mach's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Mach is also affiliated with The University of Texas MD Anderson Cancer Center. The medical group on file is Brigham and Women's Hospital. Dmand AI also links Dr. Mach to 2 more medical groups and 1 hospital outpatient department, each named with a free account.

See all 6 affiliations for Dr. Mach

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Steven Mach's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mach practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Brigham and Women's HospitalAvailable with a free account
+2 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Steven Mach is one of 1,552 anesthesiologists in Massachusetts

Anesthesiology is Dr. Mach's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dmand AI has Dr. Mach's licenses on file in 3 states: Massachusetts, Rhode Island and Texas.

Specialties and state licenses

  • Anesthesiology, MassachusettsPrimaryLicense 1019921 · taxonomy 207L00000X
  • Surgery, Rhode IslandLicense LP04300 · taxonomy 208600000X
  • Texas licenseLicense T7638

Anesthesiologists near Dr. Mach

Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Steven Mach treated 116 Medicare patients in 2024, average age 75

CMS counts 116 Medicare patients who saw Dr. Mach in 2024. The largest group is 65 to 74, with 48 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.39, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Mach's median patient age at 61, with 59% women.

Medicare patients, 2024116
Average age75
Average risk score1.39
Also on Medicaid18%

Dr. Mach's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Mach's Medicare patients by sex, 2024

  • Women5648%
  • Men6052%

Chronic conditions among Dr. Mach's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis60%
  4. Mood disorders36%
  5. Anxiety34%
  6. Atrial fibrillation32%
  7. Depression32%
  8. Ischemic heart disease28%

Share of Medicare patients with each condition. A patient can have several.

Dr. Mach's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 61

Patient panel by sex, all payers

  • Women59%
  • Men41%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Steven Mach wrote 13 Medicare Part D claims in 2018

In 2018, Dr. Mach wrote 13 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $53 in total drug cost.

Part D claims, 201813
Drugs named by CMS1
Total drug cost$53

Dr. Mach's most prescribed drugs by claims, 2018

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

See all prescribing by Dr. Mach

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

How Dr. Steven Mach takes part in Medicare

Dr. Mach accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

For MedTech and pharma teams

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Dr. Steven Mach received $4,814 in industry payments from 2019 to 2025

CMS Open Payments shows 58 general payments to Dr. Mach from 11 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 62% of the total. Medtronic, Inc. paid the most, $3,293.

General payments to Dr. Mach by program year, 2019 to 2025

General payments to Dr. Mach by kind, 2019 to 2025

$4.8Kin total
  • Food and beverage$2,98262%
  • Travel and lodging$1,83238%

Companies that paid Dr. Mach the most, 2019 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Mach

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Steven Mach graduated from University of Massachusetts Medical School

Dr. Mach graduated from University of Massachusetts Medical School in 2018.

  1. Medical schoolUniversity of Massachusetts Medical School

Source: Dmand AI Professional Profile Data

Sources for Dr. Steven Mach's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Steven Mach

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Steven Mach's NPI number?

Dr. Steven Mach's NPI number is 1437641628. It was assigned on June 4, 2018, and it is active in the NPI Registry.

What kind of doctor is Dr. Steven Mach?

Dr. Steven Mach is an anesthesiologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).

Where does Dr. Steven Mach practice?

Dr. Mach practices at 75 Francis Street, Boston, MA 02115. Dr. Mach's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Mach to 2 medical groups and 1 hospital outpatient department.

What is Dr. Steven Mach's office phone number?

The practice phone on file for Dr. Mach is (617) 732-5500.

What is Dr. Steven Mach's medical license number?

Dr. Mach holds Massachusetts license 1019921, one of the licenses on file in 3 states.

Which states has Dr. Steven Mach been licensed in?

Dmand AI has state licenses on file for Dr. Mach in Massachusetts, Rhode Island and Texas.

Which hospitals is Dr. Steven Mach affiliated with?

Dr. Mach practices at Brigham and Women's Hospital in Boston, Massachusetts. Dr. Mach is also affiliated with The University of Texas MD Anderson Cancer Center.

What medical group is Dr. Steven Mach part of?

Dr. Mach is linked to Brigham and Women's Hospital. Dmand AI links Dr. Mach to 2 more medical groups.

Does Dr. Steven Mach accept Medicare?

Yes. CMS lists Dr. Mach as accepting Medicare assignment.

How many Medicare patients does Dr. Steven Mach see?

CMS counts 116 Medicare patients who saw Dr. Mach in 2024, with an average age of 75.

Show 4 more questionsShow fewer questions

Where did Dr. Steven Mach go to medical school?

Dr. Mach graduated from University of Massachusetts Medical School in 2018.

What drugs does Dr. Steven Mach prescribe most?

In 2018 Medicare Part D data, Dr. Mach's most prescribed drugs by claims were Oxycodone HCl.

Has Dr. Steven Mach received payments from drug or device companies?

CMS Open Payments shows $4,814 in general payments to Dr. Mach from 11 companies from 2019 to 2025. The largest total came from Medtronic, Inc.

How long has Dr. Steven Mach been practicing?

Dr. Mach graduated from medical school in 2018, 8 years ago.

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