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Dr. Christopher Matthew Fischer, MD
- Medicare services, 2024
- 479
- Medicare patients, 2024
- 452
- Part D claims, 2024
- 95
- Publications
- 13
- Hospital affiliations
- 1
- Practice address
- 330 Mount Auburn Street, Cambridge, MA 02138
- Practice phone
- Call (617) 492-3500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Fischer'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. Christopher Matthew Fischer is an emergency medicine physician in Cambridge, Massachusetts
Dr. Fischer practices at Mount Auburn Hospital in Cambridge, Massachusetts, part of Beth Israel Lahey Health.
Dr. Fischer's NPI, 1871793331, was assigned on July 23, 2007. Dr. Fischer graduated from Georgetown University School of Medicine in 2004. Dr. Fischer holds Massachusetts license 232732.
- NPI
- 1871793331NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941394977
- NPI enumeration date
- July 23, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 492-3500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher Matthew Fischer practices at Mount Auburn Hospital in Cambridge, Massachusetts
Dr. Fischer's primary practice is Mount Auburn Hospital, at 330 Mount Auburn Street, Cambridge, MA 02138 in Middlesex County. The practice phone is (617) 492-3500.
- Mount Auburn Hospital330 Mount Auburn Street, Cambridge, MA 02138 · Middlesex CountyPhone(617) 492-3500
Source: Dmand AI Affiliation Data
Dr. Christopher Matthew Fischer is affiliated with 3 sites of care and 5 medical groups
Dr. Fischer's primary practice is Mount Auburn Hospital in Cambridge, Massachusetts, part of Beth Israel Lahey Health. The medical group on file is Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI also links Dr. Fischer to 4 more medical groups and 2 group practices and clinics, 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. Christopher Matthew Fischer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fischer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mount Auburn Hospital | Available with a free account |
| +2 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Beth Israel Lahey Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Christopher Matthew Fischer is one of 1,483 emergency medicine physicians in Massachusetts
Emergency medicine is Dr. Fischer's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Fischer is licensed in Massachusetts.
Specialties and state licenses
- Emergency medicine, MassachusettsPrimary
Emergency medicine physicians near Dr. Fischer
Counts of emergency medicine physicians 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. Christopher Matthew Fischer billed Medicare for 479 services in 2024
CMS data shows 479 Medicare services from Dr. Fischer across 5 procedure codes in 2024, for 452 Medicare patients. Medicare paid $62,165 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Fischer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3212024: 47949%
Dr. Fischer compared with the Massachusetts median for emergency medicine physicians, 2024
- Dr. Fischer
- Massachusetts median
- Medicare services
- 479vs 34140% above
- Medicare patients
- 452vs 33734% above
- Part D claims
- 19vs 3647% below
Medians across 1,477 emergency medicine physicians in Massachusetts with Dmand AI profiles that report each measure.
Dr. Fischer'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. Fischer and other emergency medicine physicians in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher Matthew Fischer treated 452 Medicare patients in 2024, average age 77
CMS counts 452 Medicare patients who saw Dr. Fischer in 2024. The largest group is 75 to 84, with 176 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 26% are also on Medicaid. Their average risk score is 1.80, 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. Fischer's median patient age at 64, with 54% women.
Dr. Fischer's Medicare patients by age, 2024
Dr. Fischer's Medicare patients by sex, 2024
- Women26358%
- Men18942%
Chronic conditions among Dr. Fischer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Arthritis52%
- Anxiety48%
- Mood disorders47%
- Depression40%
- Ischemic heart disease35%
- Atrial fibrillation30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fischer'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
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christopher Matthew Fischer wrote 95 Medicare Part D claims in 2024
In 2024, Dr. Fischer wrote 95 Medicare Part D claims for 79 patients. 94% of them were for generic drugs. CMS names the drug for 19 of them, across 1 drug with 11 or more claims each, at $54 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Dr. Fischer's Part D claims by kind of drug, 2024
- Generic89 claims94%
- Brand-name and other6 claims6%
Dr. Fischer's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Fischer's Part D claims, 2024
- Opioids22%21 of 95 claims
- Antibiotics32%30 of 95 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 112024: 1973%
Drugs named by CMS: 1 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Christopher Matthew Fischer takes part in Medicare
Dr. Fischer 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. Christopher Matthew Fischer has 13 publications on record
Dmand AI links 13 papers to Dr. Fischer, published from 2011 to 2025. 2012 was the busiest year, with 2. The most frequent topics are Emergency Service, Hospital, Tomography, X-Ray Computed and Academic Medical Centers. Dr. Fischer has published most often in Acad Emerg Med. Dr. Fischer's most frequent co-authors are Kathryn A. Volz, MD, Matthew R. Babineau, MD and Marc Anthony Camacho, MD.
Dr. Fischer's papers by year, 2011 to 2025
Topics Dr. Fischer writes about most
- Emergency Service, Hospital
- Tomography, X-Ray Computed
- Academic Medical Centers
- Boston
- Emergency Medicine
- Patient Transfer
- Triage
Dr. Fischer's most frequent co-authors
- Kathryn A. Volz, MD3 shared papers
- Matthew R. Babineau, MD1 shared paper
- Marc Anthony Camacho, MD1 shared paper
Recent publications by Dr. Fischer
Am J Med Qual
Int J Qual Health Care
West J Emerg Med
See who Dr. Fischer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fischer works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Christopher Matthew Fischer graduated from Georgetown University School of Medicine
Dr. Fischer graduated from Georgetown University School of Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Christopher Matthew Fischer'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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Christopher Matthew Fischer
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. Christopher Matthew Fischer's NPI number?
Dr. Christopher Matthew Fischer's NPI number is 1871793331. It was assigned on July 23, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher Matthew Fischer?
Dr. Christopher Matthew Fischer is an emergency medicine physician in Cambridge, Massachusetts. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Christopher Matthew Fischer practice?
Dr. Fischer practices at 330 Mount Auburn Street, Cambridge, MA 02138. Dr. Fischer's primary practice is Mount Auburn Hospital in Cambridge, Massachusetts, part of Beth Israel Lahey Health. Dmand AI also links Dr. Fischer to 4 medical groups and 2 group practices and clinics.
What is Dr. Christopher Matthew Fischer's office phone number?
The practice phone on file for Dr. Fischer is (617) 492-3500.
What is Dr. Christopher Matthew Fischer's medical license number?
Dr. Fischer holds Massachusetts license 232732.
Which hospitals is Dr. Christopher Matthew Fischer affiliated with?
Dr. Fischer practices at Mount Auburn Hospital in Cambridge, Massachusetts.
What medical group is Dr. Christopher Matthew Fischer part of?
Dr. Fischer is linked to Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI links Dr. Fischer to 4 more medical groups.
Does Dr. Christopher Matthew Fischer accept Medicare?
Yes. CMS data shows Dr. Fischer billed Medicare for 479 services in 2024, and Dr. Fischer accepts Medicare assignment.
How many Medicare patients does Dr. Christopher Matthew Fischer see?
CMS counts 452 Medicare patients who saw Dr. Fischer in 2024, with an average age of 77.
What services does Dr. Christopher Matthew Fischer bill to Medicare?
In 2024, Dr. Fischer's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
Show 5 more questionsShow fewer questions
Where did Dr. Christopher Matthew Fischer go to medical school?
Dr. Fischer graduated from Georgetown University School of Medicine in 2004.
What drugs does Dr. Christopher Matthew Fischer prescribe most?
In 2024 Medicare Part D data, Dr. Fischer's most prescribed drugs by claims were Oxycodone HCl.
How long has Dr. Christopher Matthew Fischer been practicing?
Dr. Fischer graduated from medical school in 2004, 22 years ago.
Does Dr. Christopher Matthew Fischer do research?
Dmand AI links 13 publications to Dr. Fischer, published from 2011 to 2025.
Who does Dr. Christopher Matthew Fischer publish with?
Dr. Fischer's most frequent co-authors are Kathryn A. Volz, MD (3 shared papers), Matthew R. Babineau, MD (1 shared paper) and Marc Anthony Camacho, MD (1 shared paper).
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