Med Clin North Am
Aorta, AbdominalAortic Aneurysm, AbdominalLower Extremity
Dr. Ernest Fischer, MD
NPI1518284355PAC ID3678718160
- Medicare services, 2024
- 479
- Medicare patients, 2024
- 191
- Part D claims, 2024
- 66
- Publications
- 8
- MIPS score, 2024
- 82
- Practice address
- 3800 Reservoir NW Rd, Washington, DC 20007
- Practice phone
- Call (202) 444-1400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Medstar Georgetown Medical Center
Washington, District of Columbia
Find Dr. Fischer's professional email, personal email and mobile number
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Dr. Ernest Fischer is a hospitalist in Washington, District of Columbia
Dr. Fischer practices at Medstar Georgetown Medical Center in Washington, District of Columbia.
Dr. Fischer's NPI, 1518284355, was assigned on May 3, 2010. Dr. Fischer graduated from University of Texas Southwestern Medical School at Dallas in 2010. Dr. Fischer holds District of Columbia license MD042201.
NPI and contact details
- NPI
- 1518284355NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678718160
- NPI enumeration date
- May 3, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (202) 444-1400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ernest Fischer practices at Medstar Georgetown Medical Center in Washington, District of Columbia
Dr. Fischer's primary practice is Medstar Georgetown Medical Center, at 3800 Reservoir NW Rd, Washington, DC 20007 in District Of Columbia County. The practice phone is (202) 444-1400.
- Medstar Georgetown Medical Center3800 Reservoir NW Rd, Washington, DC 20007 · District Of Columbia CountyPhone(202) 444-1400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ernest Fischer is affiliated with 4 sites of care and 4 medical groups
Dr. Fischer's primary practice is Medstar Georgetown Medical Center in Washington, District of Columbia. Dr. Fischer is also affiliated with MedStar Washington Hospital Center. The medical group on file is MedStar Medical Group. Dmand AI also links Dr. Fischer to 1 more hospital, 3 medical groups and 1 group practice or clinic, each named with a free account.
Medstar Georgetown Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ernest 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 |
|---|---|
| Medstar Georgetown Medical Center | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ernest Fischer is one of 90 hospitalists in District of Columbia
Hospitalist is Dr. Fischer's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Fischer is licensed in District of Columbia.
Specialties and state licenses
- Hospitalist, District of ColumbiaPrimary
Hospitalists near Dr. Fischer
Counts of hospitalists 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. Ernest Fischer billed Medicare for 479 services in 2024
CMS data shows 479 Medicare services from Dr. Fischer across 4 procedure codes in 2024, for 191 Medicare patients. Medicare paid $53,560 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024479
Medicare patients191
Paid by Medicare$53,560
Procedure codes4
Dr. Fischer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4912024: 4685%
- Surgery
- 2023: 02024: 11
Dr. Fischer compared with the District of Columbia median for hospitalists, 2024
- Dr. Fischer
- District of Columbia median
- Medicare services
- 479vs 38823% above
- Medicare patients
- 191vs 16913% above
Medians across 75 hospitalists in District of Columbia 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 hospitalists in District of Columbia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ernest Fischer treated 191 Medicare patients in 2024, average age 71
CMS counts 191 Medicare patients who saw Dr. Fischer in 2024. The largest group is 65 to 74, with 66 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 36% are also on Medicaid. Their average risk score is 2.97, 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 63, with 48% women.
Medicare patients, 2024191
Average age71
Average risk score2.97
Also on Medicaid36%
Dr. Fischer's Medicare patients by age, 2024
Dr. Fischer's Medicare patients by sex, 2024
- Women10756%
- Men8444%
Chronic conditions among Dr. Fischer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Chronic kidney disease55%
- Ischemic heart disease53%
- Diabetes51%
- Mood disorders42%
- Depression40%
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 63
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ernest Fischer wrote 66 Medicare Part D claims in 2024
In 2024, Dr. Fischer wrote 66 Medicare Part D claims for 26 patients. 83% of them were for generic drugs.
Part D claims, 202466
Part D patients26
Dr. Fischer's Part D claims by kind of drug, 2024
- Generic55 claims83%
- Brand-name11 claims17%
Drug classes CMS tracks in Dr. Fischer's Part D claims, 2024
- Antibiotics20%13 of 66 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Ernest Fischer scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Fischer for performance year 2024, reported as part of a group. Dr. Fischer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Fischer's MIPS scores, performance year 2024
- 82of 100Final score
- 67.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 69of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Ernest Fischer has 8 publications on record
Dmand AI links 8 papers to Dr. Fischer, published from 2018 to 2024. 2024 was the busiest year, with 2. The most frequent topics are Ultrasonography, COVID-19 and Lung. Dr. Fischer's most frequent co-authors are Taro Minami, MD, David Robert Boulware, MD, MPH and Luis Mauricio Calderon, MD.
Papers8
Years published2018 to 2024
Dr. Fischer's papers by year, 2018 to 2024
Topics Dr. Fischer writes about most
- Ultrasonography
- COVID-19
- Lung
- Point-of-Care Systems
- Venous Thrombosis
Dr. Fischer's most frequent co-authors
- Taro Minami, MD2 shared papers
- David Robert Boulware, MD, MPH1 shared paper
- Luis Mauricio Calderon, MD1 shared paper
Recent publications by Dr. Fischer
Cardiac CatheterizationCentral Venous PressureJugular Veins
COVID-19LungObserver Variation
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 hospitalists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ernest Fischer received $19 in industry payments in 2020
CMS Open Payments shows 1 general payment to Dr. Fischer from 1 drug or device company in 2020. Food and beverage make up the largest share, 100% of the total. AngioDynamics, Inc. paid the most, $19.
Companies that paid Dr. Fischer the most, 2020 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ernest Fischer graduated from University of Texas Southwestern Medical School at Dallas
Dr. Fischer graduated from University of Texas Southwestern Medical School at Dallas in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ernest 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 | 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 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 (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)Clinician Public Reporting: Overall MIPS Performance (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 |
| Industry payments | Open Payments (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. Ernest 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. Ernest Fischer's NPI number?
Dr. Ernest Fischer's NPI number is 1518284355. It was assigned on May 3, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Ernest Fischer?
Dr. Ernest Fischer is a hospitalist in Washington, District of Columbia. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Ernest Fischer practice?
Dr. Fischer practices at 3800 Reservoir NW Rd, Washington, DC 20007. Dr. Fischer's primary practice is Medstar Georgetown Medical Center in Washington, District of Columbia. Dmand AI also links Dr. Fischer to 1 hospital, 3 medical groups and 1 group practice or clinic.
What is Dr. Ernest Fischer's office phone number?
The practice phone on file for Dr. Fischer is (202) 444-1400.
What is Dr. Ernest Fischer's medical license number?
Dr. Fischer holds District of Columbia license MD042201.
Which hospitals is Dr. Ernest Fischer affiliated with?
Dr. Fischer is affiliated with MedStar Washington Hospital Center. Dmand AI links Dr. Fischer to 1 more hospital.
What medical group is Dr. Ernest Fischer part of?
Dr. Fischer is linked to MedStar Medical Group. Dmand AI links Dr. Fischer to 3 more medical groups.
Does Dr. Ernest Fischer accept Medicare?
Yes. CMS data shows Dr. Fischer billed Medicare for 479 services in 2024, and Dr. Fischer accepts Medicare assignment.
What is Dr. Ernest Fischer's MIPS score?
Dr. Fischer's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
How many Medicare patients does Dr. Ernest Fischer see?
CMS counts 191 Medicare patients who saw Dr. Fischer in 2024, with an average age of 71.
Show 6 more questionsShow fewer questions
What services does Dr. Ernest Fischer bill to Medicare?
In 2024, Dr. Fischer's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and hospital inpatient care (99239).
Where did Dr. Ernest Fischer go to medical school?
Dr. Fischer graduated from University of Texas Southwestern Medical School at Dallas in 2010.
Has Dr. Ernest Fischer received payments from drug or device companies?
CMS Open Payments shows $19 in general payments to Dr. Fischer from 1 company from 2020 to 2020. The largest total came from AngioDynamics, Inc.
How long has Dr. Ernest Fischer been practicing?
Dr. Fischer graduated from medical school in 2010, 16 years ago.
Does Dr. Ernest Fischer do research?
Dmand AI links 8 publications to Dr. Fischer, published from 2018 to 2024.
Who does Dr. Ernest Fischer publish with?
Dr. Fischer's most frequent co-authors are Taro Minami, MD (2 shared papers), David Robert Boulware, MD, MPH (1 shared paper) and Luis Mauricio Calderon, MD (1 shared paper).
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