Dr. Maximilian Sebastian Schaefer, MD
- Medicare patients, 2024
- 228
- Hospital affiliations
- 1
- Medical groups
- 3
- State license
- 1
- Practice address
- 375 Longwood Ave, Boston, MA 02215
- Practice phone
- Call (617) 667-2906
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Harvard Medical Faculty Physicians
Boston, Massachusetts
Find Dr. Schaefer'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. Maximilian Sebastian Schaefer is an anesthesiologist in Boston, Massachusetts
Dr. Schaefer practices at Harvard Medical Faculty Physicians in Boston, Massachusetts.
Dr. Schaefer's NPI is 1376022061. Dr. Schaefer holds Massachusetts license 277651.
- NPI
- 1376022061NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426380445
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 667-2906
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Maximilian Sebastian Schaefer practices at Harvard Medical Faculty Physicians in Boston, Massachusetts
Dr. Schaefer's primary practice is Harvard Medical Faculty Physicians, at 375 Longwood Ave, Boston, MA 02215 in Suffolk County. The practice phone is (617) 667-2906.
- Harvard Medical Faculty Physicians375 Longwood Ave, Boston, MA 02215 · Suffolk CountyPhone(617) 667-2906
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Maximilian Sebastian Schaefer is affiliated with 2 sites of care and 3 medical groups
Dr. Schaefer's primary practice is Harvard Medical Faculty Physicians in Boston, Massachusetts. Dr. Schaefer is also affiliated with Beth Israel Deaconess Medical Center. The medical group on file is Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI also links Dr. Schaefer to 2 more medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Maximilian Sebastian Schaefer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schaefer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Harvard Medical Faculty Physicians | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Maximilian Sebastian Schaefer is one of 1,552 anesthesiologists in Massachusetts
Anesthesiology is Dr. Schaefer's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Schaefer is licensed in Massachusetts.
Specialties and state licenses
- Anesthesiology, MassachusettsPrimary
Anesthesiologists near Dr. Schaefer
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. Maximilian Sebastian Schaefer treated 228 Medicare patients in 2024, average age 74
CMS counts 228 Medicare patients who saw Dr. Schaefer in 2024. The largest group is 65 to 74, with 110 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 19% are also on Medicaid. Their average risk score is 1.87, 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. Schaefer's median patient age at 64, with 56% women.
Dr. Schaefer's Medicare patients by age, 2024
Dr. Schaefer's Medicare patients by sex, 2024
- Women12254%
- Men10646%
Chronic conditions among Dr. Schaefer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Chronic kidney disease36%
- Diabetes36%
- Mood disorders36%
- Anxiety35%
- Ischemic heart disease35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Schaefer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Maximilian Sebastian Schaefer takes part in Medicare
Dr. Schaefer 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)
Sources for Dr. Maximilian Sebastian Schaefer'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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) |
| 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. Maximilian Sebastian Schaefer
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. Maximilian Sebastian Schaefer's NPI number?
Dr. Maximilian Sebastian Schaefer's NPI number is 1376022061. It is active in the NPI Registry.
What kind of doctor is Dr. Maximilian Sebastian Schaefer?
Dr. Maximilian Sebastian Schaefer is an anesthesiologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Maximilian Sebastian Schaefer practice?
Dr. Schaefer practices at 375 Longwood Ave, Boston, MA 02215. Dr. Schaefer's primary practice is Harvard Medical Faculty Physicians in Boston, Massachusetts. Dmand AI also links Dr. Schaefer to 2 medical groups.
What is Dr. Maximilian Sebastian Schaefer's office phone number?
The practice phone on file for Dr. Schaefer is (617) 667-2906.
What is Dr. Maximilian Sebastian Schaefer's medical license number?
Dr. Schaefer holds Massachusetts license 277651.
Which hospitals is Dr. Maximilian Sebastian Schaefer affiliated with?
Dr. Schaefer is affiliated with Beth Israel Deaconess Medical Center.
What medical group is Dr. Maximilian Sebastian Schaefer part of?
Dr. Schaefer is linked to Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI links Dr. Schaefer to 2 more medical groups.
Does Dr. Maximilian Sebastian Schaefer accept Medicare?
Yes. CMS lists Dr. Schaefer as accepting Medicare assignment.
How many Medicare patients does Dr. Maximilian Sebastian Schaefer see?
CMS counts 228 Medicare patients who saw Dr. Schaefer in 2024, with an average age of 74.
How long has Dr. Maximilian Sebastian Schaefer been practicing?
Dr. Schaefer graduated from medical school in 2005, 21 years ago.
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