Dr. Gregory J. Downs , MD
Anesthesiology • Milwaukee, WI
2323 N Lake Dr
Milwaukee, WI 532114508
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on November 23, 2005; this date does not establish years in practice.
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Published CMS data list 143 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 00731 — Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope: 57 service units.
- 00811 — Anesthesia for other procedure on large bowel using an endoscope: 42 service units.
- 00910 — Anesthesia for other procedure on urinary system through urethra: 16 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 5 records in the table · Guide: How to read Medicare Part B data
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More Medicare Part B services than 80% of clinicians listed under Anesthesiology in Milwaukee, WI (2024, 189 clinicians with data). Median for this group: 52. Middle half: 27 to 115.
More Medicare Part B services than 80% of clinicians listed under Anesthesiology in Wisconsin (2024, 690 clinicians with data). Median for this group: 64. Middle half: 31 to 119.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 57 in 2020 to 143 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
2323 N Lake Dr
Milwaukee, WI 532114508
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 2 distinct group names: The Medical College Of Wisconsin Inc; Vituity-Wisconsin Anesthesia Sc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Medical College Of Wisconsin
1985
What Public CMS Data Show
Anesthesiology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
230 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $10,828 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $8,570 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Open Payments general payments, program year 2023
All general payments: $53.40 across 3 records.
By nature of payment
- Food and Beverage: $53.40 across 3 records.
Reporting-company totals
- Rayner Intraocular Lenses Limited: $20.38 across 1 record.
- Glaukos Corporation: $17.23 across 1 record.
- Carl Zeiss Meditec Cataract Technology Inc.: $15.79 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2023 (published June 30, 2026).
Years since graduation
41 years (graduated 1985)
CMS Doctors and Clinicians data list 1985 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2005
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Downs has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Downs as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Milwaukee and Wisconsin
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 80% of clinicians listed under Anesthesiology in Milwaukee, WI (2024, 189 clinicians with data). Median for this group: 52. Middle half: 27 to 115.
More Medicare Part B services than 80% of clinicians listed under Anesthesiology in Wisconsin (2024, 690 clinicians with data). Median for this group: 64. Middle half: 31 to 119.
Medicare-allowed amount
A higher Medicare-allowed amount than 70% of clinicians listed under Anesthesiology in Milwaukee, WI (2024, 189 clinicians with data). Median for this group: $5,712. Middle half: $2,584 to $12,234.
A higher Medicare-allowed amount than 70% of clinicians listed under Anesthesiology in Wisconsin (2024, 690 clinicians with data). Median for this group: $5,823. Middle half: $2,953 to $12,639.
Paid by Medicare
A higher Medicare payment amount than 70% of clinicians listed under Anesthesiology in Milwaukee, WI (2024, 189 clinicians with data). Median for this group: $4,626. Middle half: $1,999 to $9,748.
A higher Medicare payment amount than 70% of clinicians listed under Anesthesiology in Wisconsin (2024, 690 clinicians with data). Median for this group: $4,655. Middle half: $2,319 to $9,829.
387 active clinicians are listed under Anesthesiology with a practice address in Milwaukee, WI (1,313 in Wisconsin).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Milwaukee
1% of these 387 clinicians have the CMS telehealth indicator.
64.9% of these 387 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 151% from 57 in 2020 to 143 in 2024.
- 2020: 57
- 2021: 487
- 2022: 922
- 2023: 211
- 2024: 143
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Medicare-allowed amount
Medicare-allowed amount increased 58% from $6,845 in 2020 to $10,828 in 2024.
- 2020: $6,845
- 2021: $56,151
- 2022: $99,033
- 2023: $22,107
- 2024: $10,828
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Paid by Medicare
Paid by Medicare increased 59% from $5,387 in 2020 to $8,570 in 2024.
- 2020: $5,387
- 2021: $45,081
- 2022: $78,860
- 2023: $17,206
- 2024: $8,570
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $16.17 in 2021 to $53.40 in 2023.
- 2021: $16.17
- 2022: $73.57
- 2023: $53.40
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Open Payments (2023), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2023 (payments made January 1 – December 31, 2023): fewer than 11 records totaling $53.40.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Rayner Intraocular Lenses Limited |
Food and Beverage
Cash or cash equivalent
|
Omidria | General | $20.38 |
| Glaukos Corporation |
Food and Beverage
Cash or cash equivalent
|
— | General | $17.23 |
| Carl Zeiss Meditec Cataract Technology Inc. |
Food and Beverage
In-kind items and services
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— | General | $15.79 |
Source: CMS Open Payments, program year 2023, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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00731
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope
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57 | 56 | $2023.59 | $73.86 |
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00811
Anesthesia for other procedure on large bowel using an endoscope
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42 | 42 | $1823.67 | $67.00 |
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00910
Anesthesia for other procedure on urinary system through urethra
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16 | 16 | $1897.86 | $70.38 |
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01922
Anesthesia for x-ray or radiation therapy
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15 | 15 | $2915.72 | $108.85 |
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00813
Anesthesia for procedure on small and large bowel using an endoscope
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13 | 13 | $2196.37 | $80.37 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207L00000X
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ANESTHESIOLOGY
I20070129000498
WI
9335132885
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Vituity-Wisconsin Anesthesia Sc
13111 N Port Washington Rd, Mequon, WI 530972416
Phone: 2622437300
The Medical College Of Wisconsin Inc
8701 W Watertown Plank, Milwaukee, WI 532263548
Phone: 4148053666
The Medical College Of Wisconsin Inc
8701 Watertown Plank Rd, Milwaukee, WI 532263548
Phone: 4148053666
Vituity-Wisconsin Anesthesia Sc
9555 76th St, Pleasant Prairie, WI 531581984
Phone: 2625778000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Anesthesiology
Doctor of Medicine (M.D.)
Anesthesiology
Doctor of Medicine (M.D.)
Anesthesiology
Anesthesiology
Doctor of Medicine (M.D.)
Anesthesiologist Assistant
Physician Assistant
Career & Practice History
NPI enumerated November 23, 2005.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Anesthesiology Specialists in Milwaukee
- Dr. Cory Robers, MD
- Dr. Thomas Felton, MD
- Dr. Olga Kaslow, MD
- Dr. Carina Jackman, MD
- Dr. James Ducanto, MD
- Dr. Catherine Drexler, MD
Mailing Address
225 S Executive Dr
Brookfield, WI 530054266
Phone: 2627874026