2026 NPPES data Anesthesiology Physician NPI 1750323846 MD
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GREG FISCHER, MD

Anesthesiology Physician in FALLS CHURCH, Virginia. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
386
Medicare Part D claims · 121 beneficiaries · Anesthesiology Physician avg: 860
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
74.1079/100
▼ 9 pts below national avg 83.1 · [object Object]
Industry payments
$121.16
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

GREG FISCHER, MD reported a CMS MIPS final score of 74.1079/100 — below the 83.1 national average — and filed 386 Medicare Part D claims in 2023.

74.1079/100
MIPS score · -9 vs avg
386
Part D claims, 2023
93%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

GREG FISCHER, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

74 12th percentile higher than 12% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

GREG FISCHER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about GREG FISCHER, MD?

Below national average

NPI registry status

Active

Issued 06/12/2006

NPI 1750323846

Primary specialty

Anesthesiology Physician

High-volume

56,398 US NPIs in this specialty

Medicare Part D claims

386 55% vs specialty avg

2023 prescription claims

Specialty avg: 860

MIPS final score

74.1079/100 8.992099999999994% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Virginia

How Anesthesiology Physician compares to other specialties among Virginia providers

Virginia providers

Anesthesiology Physician share within Virginia

1. Anesthesiology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Anesthesiology Physician share within Virginia

Medicare quality performance — MIPS

GREG FISCHER, MD's 2023 MIPS final score plotted against the Anesthesiology Physician national average

Below national average
MIPS Final Score
74.1079/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Anesthesiology Physician) — 74.1079/100 vs national avg 83.1

0%100%National avg83%74.1%
MIPS final score (Anesthesiology Physician) — 74.1079/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

GREG FISCHER, MD appears in the CMS NPPES registry as a Anesthesiology Physician provider holding MD credentials at 3300 GALLOWS RD, FALLS CHURCH, VA, 22042, with a listed phone of (703) 776-3138. NPI 1750323846 was issued on 06/12/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FISCHER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 386 prescription claims written by this provider, covering 121 Medicare beneficiaries and totaling roughly $40K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 41.7%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 74.1079/100 for the 2023 performance year (Quality 85.6316, Cost 40.035), compared with the national average of 83.1.

Anesthesiology Physician is a high-volume specialty nationwide, with 56,398 enrolled providers across 56 states and an average of 860 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

3300 GALLOWS RD
FALLS CHURCH, VA 22042

Provider Details

NPI 1750323846
Specialty Anesthesiology Physician
Credentials MD
Gender Male
NPI Issued 06/12/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

74.1079
Final Score
Avg: 83.1
85.6316
Quality
40.035
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where GREG FISCHER, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

INOVA HEALTH CARE SERVICES
FALLS CHURCH, VA
NORTHSTAR ANESTHESIA OF VIRGINIA, LLC
ALEXANDRIA, VA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for GREG FISCHER, MD. Source: openpaymentsdata.cms.gov.

Total received

$121

Largest payer

SPR Therapeutics, Inc

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Generic-heavy

GREG FISCHER, MD — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 386 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

386
Total Claims
$40K
Total Drug Cost
121
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
448
Total Day Supply
12,484
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$18K
Generic Drug Cost
$22K
Opioid Claims
161 (41.7% rate)

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
1.55
Gender Split
60% female / 40% male
Age Distribution
<65: 14, 65-74: 45, 75-84: 47, 85+: 15

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What GREG FISCHER, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Gabapentin
51
Pregabalin
36
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
34
Oxycodone Hcl
26
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
21
Tramadol Hcl
20
Methocarbamol
19
Morphine Sulfate Er
Morphine Sulfate
18
Meloxicam
16
Hydromorphone Hcl
15

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Anesthesiology Physician Overview

How GREG FISCHER, MD fits within the Anesthesiology Physician landscape nationally.

56,398
Anesthesiology Physician Providers in US
56
States with Anesthesiology Physician
860
Avg Claims per Provider

GREG FISCHER, MD's 386 claims are below the specialty average of 860.

Nearby Anesthesiology Physician Providers in Virginia

Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as FISCHER.

Compare Anesthesiology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GREG FISCHER, MD's specialty?
GREG FISCHER, MD specializes in Anesthesiology Physician and practices in FALLS CHURCH, Virginia. Credentials: MD.
How much does GREG FISCHER, MD prescribe under Medicare Part D?
In 2023, GREG FISCHER, MD wrote 386 Medicare Part D claims totaling $40K in drug costs for 121 beneficiaries.
What is GREG FISCHER, MD's Medicare quality score?
GREG FISCHER, MD has a CMS MIPS Final Score of 74.1079/100 (Quality: 85.6316, Cost: 40.035). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is GREG FISCHER, MD located?
GREG FISCHER, MD is located at 3300 GALLOWS RD, FALLS CHURCH, VA, 22042. Phone: (703) 776-3138.
What is GREG FISCHER, MD's NPI number?
GREG FISCHER, MD's National Provider Identifier (NPI) is 1750323846, issued on 06/12/2006.
Does GREG FISCHER, MD prescribe more brand-name or generic drugs?
GREG FISCHER, MD's prescribing is 7% brand-name and 93% generic drugs by claim count, with $18K in brand drug costs.
Does GREG FISCHER, MD prescribe opioids?
Yes, GREG FISCHER, MD had 161 opioid claims in 2023 with an opioid prescribing rate of 41.7%.
How many Anesthesiology Physician providers are there in the US?
There are 56,398 Anesthesiology Physician providers across 56 states in the US. The average Anesthesiology Physician provider writes 860 Medicare Part D claims per year.
What drugs does GREG FISCHER, MD prescribe most often?
Based on 2023 Medicare Part D data, GREG FISCHER, MD's most frequently prescribed drugs include Gabapentin, Pregabalin, Oxycodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GREG FISCHER, MD accept Medicare?
GREG FISCHER, MD appears in CMS Medicare data with 386 Part D claims and 121 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GREG FISCHER, MD's credentials?
GREG FISCHER, MD's NPI is 1750323846 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology