Dr. Matthew E. Grunert, MD

  • Boston, MA
  • Anesthesiologist
NPI1083856066PAC ID5698915429
Medicare services, 2024
291
Medicare patients, 2024
303
Publications
1
Hospital affiliations
1
Industry payments
$20
Practice address
75 Francis Street, Boston, MA 02115
Practice phone
Call (617) 732-5500
Professional email
Get professional email
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 3 affiliations

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Dr. Matthew E. Grunert is an anesthesiologist in Boston, Massachusetts

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

Dr. Grunert's NPI, 1083856066, was assigned on April 6, 2009. Dr. Grunert graduated from University of Rochester School of Medicine and Dentistry in 2009. Dr. Grunert holds Massachusetts license 254667.

NPI and contact details
Medicare PAC ID
5698915429
NPI enumeration date
April 6, 2009
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
43
Medical school graduation
2009

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

Dr. Matthew E. Grunert practices at Brigham and Women's Hospital in Boston, Massachusetts

Dr. Grunert'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. Matthew E. Grunert is affiliated with 2 sites of care and 1 medical group

Dr. Grunert's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Brigham and Women's Hospital. Dmand AI also links Dr. Grunert to 1 more hospital outpatient department, named with a free account.

See all 3 affiliations for Dr. Grunert

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

Dmand AI tracks the EHR system at Dr. Matthew E. Grunert's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grunert practices, 2 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
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Matthew E. Grunert is one of 1,552 anesthesiologists in Massachusetts

Anesthesiology is Dr. Grunert's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Grunert is licensed in Massachusetts.

Specialties and state licenses

  • Anesthesiology, MassachusettsPrimaryLicense 254667 · taxonomy 207L00000X

Anesthesiologists near Dr. Grunert

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. Matthew E. Grunert billed Medicare for 291 services in 2024

CMS data shows 291 Medicare services from Dr. Grunert across 9 procedure codes in 2024, for 303 Medicare patients. Medicare paid $37,636 for them.

Medicare services, 2024291
Medicare patients303
Paid by Medicare$37,636
Procedure codes9

Dr. Grunert's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Anesthesia
2023: 2002024: 1829%
Office and hospital visits
2023: 842024: 907%
Surgery
2023: 132024: 1946%

Where Dr. Grunert's Medicare services took place, 2024

  • In an office3713%
  • In a facility25487%

Dr. Grunert compared with the Massachusetts median for anesthesiologists, 2024

  • Dr. Grunert
  • Massachusetts median
Medicare services
291vs 1262.3 times
Medicare patients
303vs 20051% above

Medians across 1,366 anesthesiologists in Massachusetts with Dmand AI profiles that report each measure.

Dr. Grunert's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Grunert

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Matthew E. Grunert treated 303 Medicare patients in 2024, average age 73

CMS counts 303 Medicare patients who saw Dr. Grunert in 2024. The largest group is 65 to 74, with 135 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 2.03, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Grunert's median patient age at 60, with 55% women.

Medicare patients, 2024303
Average age73
Average risk score2.03
Also on Medicaid15%

Dr. Grunert's Medicare patients by age, 2024

Dr. Grunert's Medicare patients by sex, 2024

  • Women16554%
  • Men13846%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis51%
  4. Anxiety36%
  5. Ischemic heart disease35%
  6. Mood disorders35%
  7. Diabetes31%
  8. Atrial fibrillation30%

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

Dr. Grunert's patients across all payers

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

Patient panel by age, all payers

Median age 60

Patient panel by sex, all payers

  • Women55%
  • Men45%

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

How Dr. Matthew E. Grunert takes part in Medicare

Dr. Grunert 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)

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Dr. Matthew E. Grunert has 1 publication on record

Dmand AI links 1 paper to Dr. Grunert in 2024.

Papers1

Recent publications by Dr. Grunert

See all 1 publications and co-authors

See who Dr. Grunert researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Grunert works with, so you can find a warm path to the right anesthesiologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Matthew E. Grunert received $20 in industry payments in 2019

CMS Open Payments shows 1 general payment to Dr. Grunert from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. C. R. Bard, Inc. & Subsidiaries paid the most, $20.

Companies that paid Dr. Grunert the most, 2019 to 2019

Share is of all general payments to this clinician.

See all payments to Dr. Grunert

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

Dr. Matthew E. Grunert graduated from University of Rochester School of Medicine and Dentistry

Dr. Grunert graduated from University of Rochester School of Medicine and Dentistry in 2009.

  1. Medical schoolUniversity of Rochester School of Medicine and Dentistry

Source: Dmand AI Professional Profile Data

Sources for Dr. Matthew E. Grunert'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 services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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. Matthew E. Grunert

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. Matthew E. Grunert's NPI number?

Dr. Matthew E. Grunert's NPI number is 1083856066. It was assigned on April 6, 2009, and it is active in the NPI Registry.

What kind of doctor is Dr. Matthew E. Grunert?

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

Where does Dr. Matthew E. Grunert practice?

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

What is Dr. Matthew E. Grunert's office phone number?

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

What is Dr. Matthew E. Grunert's medical license number?

Dr. Grunert holds Massachusetts license 254667.

Which hospitals is Dr. Matthew E. Grunert affiliated with?

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

What medical group is Dr. Matthew E. Grunert part of?

Dr. Grunert is linked to Brigham and Women's Hospital.

Does Dr. Matthew E. Grunert accept Medicare?

Yes. CMS data shows Dr. Grunert billed Medicare for 291 services in 2024, and Dr. Grunert accepts Medicare assignment.

How many Medicare patients does Dr. Matthew E. Grunert see?

CMS counts 303 Medicare patients who saw Dr. Grunert in 2024, with an average age of 73.

What services does Dr. Matthew E. Grunert bill to Medicare?

In 2024, Dr. Grunert's most billed Medicare services were critical care (99291), anesthesia (00811) and anesthesia (00731).

Show 4 more questionsShow fewer questions

Where did Dr. Matthew E. Grunert go to medical school?

Dr. Grunert graduated from University of Rochester School of Medicine and Dentistry in 2009.

Has Dr. Matthew E. Grunert received payments from drug or device companies?

CMS Open Payments shows $20 in general payments to Dr. Grunert from 1 company from 2019 to 2019. The largest total came from C. R. Bard, Inc. & Subsidiaries.

How long has Dr. Matthew E. Grunert been practicing?

Dr. Grunert graduated from medical school in 2009, 17 years ago.

Does Dr. Matthew E. Grunert do research?

Dmand AI links 1 publication to Dr. Grunert.

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