Dr. Greg M. Fischer, MD
- Medicare services, 2024
- 952
- Medicare patients, 2024
- 343
- Part D claims, 2024
- 471
- Hospital affiliations
- 4
- Industry payments
- $2,888
- Practice address
- 3300 Gallows Rd, Falls Church, VA 22046
- Practice phone
- Call (703) 698-3659
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Inova Fairfax Hospital - Unit
Acute Care Hospital-Unit · Falls Church, Virginia
Find Dr. Fischer's professional email, personal email and mobile number
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Dr. Greg M. Fischer is an anesthesiologist in Falls Church, Virginia
Dr. Fischer practices at Inova Fairfax Hospital - Unit in Falls Church, Virginia.
Dr. Fischer's NPI, 1750323846, was assigned on June 12, 2006. Dr. Fischer holds Virginia license 0101057593.
- NPI
- 1750323846NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446325278
- NPI enumeration date
- June 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (703) 698-3659
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Greg M. Fischer practices at Inova Fairfax Hospital - Unit in Falls Church, Virginia
Dr. Fischer's primary practice is Inova Fairfax Hospital - Unit, at 3300 Gallows Rd, Falls Church, VA 22046 in Falls Church City. The practice phone is (703) 698-3659.
- Inova Fairfax Hospital - Unit3300 Gallows Rd, Falls Church, VA 22046 · Falls Church CityPhone(703) 698-3659
Source: Dmand AI Affiliation Data
Dr. Greg M. Fischer is affiliated with 4 sites of care and 3 medical groups
Dr. Fischer's primary practice is Inova Fairfax Hospital - Unit in Falls Church, Virginia. Dr. Fischer is also affiliated with Inova Fairfax Hospital. The medical group on file is Inova Urgent Care Center. Dmand AI also links Dr. Fischer to 2 more hospitals and 2 medical groups, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Greg M. Fischer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fischer practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Inova Fairfax Hospital - Unit | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Greg M. Fischer is one of 1,215 anesthesiologists in Virginia
Anesthesiology is Dr. Fischer's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Fischer is licensed in Virginia.
Specialties and state licenses
- Anesthesiology, VirginiaPrimary
Anesthesiologists near Dr. Fischer
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. Greg M. Fischer billed Medicare for 952 services in 2024
CMS data shows 952 Medicare services from Dr. Fischer across 15 procedure codes in 2024, for 343 Medicare patients. Medicare paid $81,214 for them. Every service was in an office.
Dr. Fischer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 7822024: 68113%
- Office and hospital visits
- 2023: 1992024: 2106%
- Imaging
- 2023: 552024: 6111%
Dr. Fischer compared with the Virginia median for anesthesiologists, 2024
- Dr. Fischer
- Virginia median
- Medicare services
- 952vs 1426.7 times
- Medicare patients
- 343vs 21659% above
- Part D claims
- 395vs 2814.1 times
Medians across 1,171 anesthesiologists in Virginia 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Greg M. Fischer treated 343 Medicare patients in 2024, average age 76
CMS counts 343 Medicare patients who saw Dr. Fischer in 2024. The largest group is 75 to 84, with 134 patients. 75% of them have arthritis, and 75% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.38, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Fischer's median patient age at 65, with 61% women.
Dr. Fischer's Medicare patients by age, 2024
Dr. Fischer's Medicare patients by sex, 2024
- Women21864%
- Men12536%
Chronic conditions among Dr. Fischer's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease31%
- Anxiety29%
- Diabetes28%
- Mood disorders28%
- Depression25%
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 65
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Greg M. Fischer wrote 471 Medicare Part D claims in 2024
In 2024, Dr. Fischer wrote 471 Medicare Part D claims for 134 patients. 95% of them were for generic drugs. CMS names the drug for 395 of them, across 15 drugs with 11 or more claims each, at $7,369 in total drug cost. In 2023, CMS named 281 claims across 12 drugs.
Dr. Fischer's Part D claims by kind of drug, 2024
- Generic446 claims95%
- Brand-name25 claims5%
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
- Opioids33%157 of 471 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: 2812024: 39541%
Drugs named by CMS: 15 in 2024, 12 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
Dr. Greg M. Fischer offers telehealth to Medicare patients
Dr. Fischer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Fischer as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Greg M. Fischer received $2,888 in industry payments from 2016 to 2025
CMS Open Payments shows 140 general payments to Dr. Fischer from 33 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Daiichi Sankyo Inc. paid the most, $263.
General payments to Dr. Fischer by program year, 2016 to 2025
Companies that paid Dr. Fischer the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Greg M. 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 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) |
| Industry payments | Open Payments (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. Greg M. 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. Greg M. Fischer's NPI number?
Dr. Greg M. Fischer's NPI number is 1750323846. It was assigned on June 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Greg M. Fischer?
Dr. Greg M. Fischer is an anesthesiologist in Falls Church, Virginia. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Greg M. Fischer practice?
Dr. Fischer practices at 3300 Gallows Rd, Falls Church, VA 22046. Dr. Fischer's primary practice is Inova Fairfax Hospital - Unit in Falls Church, Virginia. Dmand AI also links Dr. Fischer to 2 hospitals and 2 medical groups.
What is Dr. Greg M. Fischer's office phone number?
The practice phone on file for Dr. Fischer is (703) 698-3659.
What is Dr. Greg M. Fischer's medical license number?
Dr. Fischer holds Virginia license 0101057593.
Which hospitals is Dr. Greg M. Fischer affiliated with?
Dr. Fischer is affiliated with Inova Fairfax Hospital. Dmand AI links Dr. Fischer to 3 more hospitals.
What medical group is Dr. Greg M. Fischer part of?
Dr. Fischer is linked to Inova Urgent Care Center. Dmand AI links Dr. Fischer to 2 more medical groups.
Does Dr. Greg M. Fischer accept Medicare?
Yes. CMS data shows Dr. Fischer billed Medicare for 952 services in 2024, and Dr. Fischer accepts Medicare assignment.
Does Dr. Greg M. Fischer offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Fischer as offering telehealth services.
How many Medicare patients does Dr. Greg M. Fischer see?
CMS counts 343 Medicare patients who saw Dr. Fischer in 2024, with an average age of 76.
Show 4 more questionsShow fewer questions
What services does Dr. Greg M. Fischer bill to Medicare?
In 2024, Dr. Fischer's most billed Medicare services were surgery: brain, spine and nerves (64483), office visit, established patient (99214) and surgery: brain, spine and nerves (64484).
What drugs does Dr. Greg M. Fischer prescribe most?
In 2024 Medicare Part D data, Dr. Fischer's most prescribed drugs by claims were Gabapentin, Pregabalin and Oxycodone-Acetaminophen.
Has Dr. Greg M. Fischer received payments from drug or device companies?
CMS Open Payments shows $2,888 in general payments to Dr. Fischer from 33 companies from 2016 to 2025. The largest total came from Daiichi Sankyo Inc.
How long has Dr. Greg M. Fischer been practicing?
Dr. Fischer graduated from medical school in 1993, 33 years ago.
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