Dr. Keith Harold Baker, MD, PhD
- Medicare services, 2024
- 99
- Medicare patients, 2024
- 202
- Hospital affiliations
- 1
- Medical groups
- 2
- State license
- 1
- Practice address
- 55 Fruit Street, Boston, MA 02114
- Practice phone
- Call (617) 726-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Baker's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Keith Harold Baker is an anesthesiologist in Boston, Massachusetts
Dr. Baker practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Baker's NPI, 1962493510, was assigned on November 2, 2005. Dr. Baker graduated from Washington University School of Medicine in 1992. Dr. Baker holds Massachusetts license 81303.
- NPI
- 1962493510NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163615667
- NPI enumeration date
- November 2, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Keith Harold Baker practices at Massachusetts General Hospital in Boston, Massachusetts
Dr. Baker's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.
- Massachusetts General Hospital55 Fruit Street, Boston, MA 02114 · Suffolk CountyPhone(617) 726-2000
Source: Dmand AI Affiliation Data
Dr. Keith Harold Baker is affiliated with 2 sites of care and 2 medical groups
Dr. Baker's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Baker to 1 more community health center and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Keith Harold Baker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Baker practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Keith Harold Baker is one of 1,552 anesthesiologists in Massachusetts
Anesthesiology is Dr. Baker's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Baker is licensed in Massachusetts.
Specialties and state licenses
- Anesthesiology, MassachusettsPrimary
Anesthesiologists near Dr. Baker
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. Keith Harold Baker billed Medicare for 99 services in 2024
CMS data shows 99 Medicare services from Dr. Baker across 5 procedure codes in 2024, for 202 Medicare patients. Medicare paid $19,872 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Baker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1012024: 7724%
- Surgery
- 2023: 262024: 2215%
Dr. Baker compared with the Massachusetts median for anesthesiologists, 2024
- Dr. Baker
- Massachusetts median
- Medicare services
- 99vs 12621% below
- Medicare patients
- 202vs 200Close to median
Medians across 1,366 anesthesiologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Baker'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Baker and other anesthesiologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Keith Harold Baker treated 202 Medicare patients in 2024, average age 72
CMS counts 202 Medicare patients who saw Dr. Baker in 2024. The largest group is 65 to 74, with 101 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 19% are also on Medicaid. Their average risk score is 2.25, 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. Baker's median patient age at 63, with 53% women.
Dr. Baker's Medicare patients by age, 2024
Dr. Baker's Medicare patients by sex, 2024
- Women9447%
- Men10853%
Chronic conditions among Dr. Baker's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Anxiety43%
- Arthritis42%
- Cancer40%
- Chronic kidney disease35%
- Ischemic heart disease34%
- Mood disorders34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Baker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Keith Harold Baker takes part in Medicare
Dr. Baker 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. Keith Harold Baker graduated from Washington University School of Medicine
Dr. Baker graduated from Washington University School of Medicine in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Keith Harold Baker's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Keith Harold Baker
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. Keith Harold Baker's NPI number?
Dr. Keith Harold Baker's NPI number is 1962493510. It was assigned on November 2, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Keith Harold Baker?
Dr. Keith Harold Baker is an anesthesiologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Keith Harold Baker practice?
Dr. Baker practices at 55 Fruit Street, Boston, MA 02114. Dr. Baker's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Baker to 1 community health center and 1 medical group.
What is Dr. Keith Harold Baker's office phone number?
The practice phone on file for Dr. Baker is (617) 726-2000.
What is Dr. Keith Harold Baker's medical license number?
Dr. Baker holds Massachusetts license 81303.
Which hospitals is Dr. Keith Harold Baker affiliated with?
Dr. Baker practices at Massachusetts General Hospital in Boston, Massachusetts.
What medical group is Dr. Keith Harold Baker part of?
Dr. Baker is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Baker to 1 more medical group.
Does Dr. Keith Harold Baker accept Medicare?
Yes. CMS data shows Dr. Baker billed Medicare for 99 services in 2024, and Dr. Baker accepts Medicare assignment.
How many Medicare patients does Dr. Keith Harold Baker see?
CMS counts 202 Medicare patients who saw Dr. Baker in 2024, with an average age of 72.
What services does Dr. Keith Harold Baker bill to Medicare?
In 2024, Dr. Baker's most billed Medicare services were anesthesia (00520), anesthesia (00731) and surgery: heart and blood vessels (36620).
Where did Dr. Keith Harold Baker go to medical school?
Dr. Baker graduated from Washington University School of Medicine in 1992.
How long has Dr. Keith Harold Baker been practicing?
Dr. Baker graduated from medical school in 1992, 34 years ago.
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