Dr. Georg Burkhard Mackensen , MD, PhD
Anesthesiology • Seattle, WA
1959 Ne Pacific St, Ss327f
Seattle, WA 981950001
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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Dr. Georg Mackensen is listed in NPPES under Anesthesiology.
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NPI assigned on October 25, 2006; this date does not establish years in practice.
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Published CMS data list 20 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:
- 93355 — Ultrasound of heart with probe in esophagus during surgery on heart or great blood vessels with report: 20 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 the full table · Guide: How to read Medicare Part B data
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Published CMS data list 12 Medicare Part D prescriptions, including refills, in 2022.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022. Published rows only; this is not a quality measure.
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Published Part D records, 2022:
- Lansoprazole — 12 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 75% of clinicians listed under Anesthesiology in Seattle, WA (2024, 318 clinicians with data). Median for this group: 50. Middle half: 24 to 99.
Fewer Medicare Part B services than 80% of clinicians listed under Anesthesiology in Washington (2024, 775 clinicians with data). Median for this group: 60. Middle half: 28 to 117.
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 141 in 2020 to 20 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
1959 Ne Pacific St
Ss327f
Seattle, WA 981950001
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 1 group name: The Association Of University Physicians. 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
1994
What Public CMS Data Show
Anesthesiology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
38 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 $4,835 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 $3,893 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.
30-day fills
12 standardized 30-day fills in 2022
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$271 in 2022
The total cost of these prescriptions in 2022, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022.
Open Payments general payments, program year 2025
All general payments: $7,172.80 across 16 records.
By nature of payment (3 largest of 4)
- Honoraria: $4,000.00 across 1 record.
- Travel and Lodging: $1,488.76 across 6 records.
- Food and Beverage: $884.04 across 8 records.
Reporting-company totals (3 largest of 5)
- Octapharma USA, Inc.: $5,723.80 across 10 records.
- FUJIFILM SonoSite, Inc.: $800.00 across 1 record.
- Ancora Heart, Inc.: $385.82 across 2 records.
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 2025 (published June 30, 2026).
Years since graduation
32 years (graduated 1994)
CMS Doctors and Clinicians data list 1994 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
2006
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. Mackensen 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. Mackensen 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 Seattle and Washington
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 75% of clinicians listed under Anesthesiology in Seattle, WA (2024, 318 clinicians with data). Median for this group: 50. Middle half: 24 to 99.
Fewer Medicare Part B services than 80% of clinicians listed under Anesthesiology in Washington (2024, 775 clinicians with data). Median for this group: 60. Middle half: 28 to 117.
Medicare-allowed amount
A lower Medicare-allowed amount than 60% of clinicians listed under Anesthesiology in Seattle, WA (2024, 318 clinicians with data). Median for this group: $7,333. Middle half: $3,124 to $14,738.
A lower Medicare-allowed amount than 65% of clinicians listed under Anesthesiology in Washington (2024, 775 clinicians with data). Median for this group: $8,152. Middle half: $3,492 to $15,520.
Paid by Medicare
A lower Medicare payment amount than 60% of clinicians listed under Anesthesiology in Seattle, WA (2024, 318 clinicians with data). Median for this group: $5,738. Middle half: $2,555 to $11,776.
A lower Medicare payment amount than 65% of clinicians listed under Anesthesiology in Washington (2024, 775 clinicians with data). Median for this group: $6,478. Middle half: $2,755 to $12,449.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Mackensen are from 2022.
694 active clinicians are listed under Anesthesiology with a practice address in Seattle, WA (1,701 in Washington).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Seattle
1.6% of these 694 clinicians have the CMS telehealth indicator.
69% of these 694 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 decreased 86% from 141 in 2020 to 20 in 2024.
- 2020: 141
- 2021: 100
- 2022: 26
- 2023: 16
- 2024: 20
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Medicare-allowed amount
Medicare-allowed amount decreased 80% from $23,764 in 2020 to $4,835 in 2024.
- 2020: $23,764
- 2021: $18,993
- 2022: $6,034
- 2023: $3,794
- 2024: $4,835
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Paid by Medicare
Paid by Medicare decreased 80% from $19,035 in 2020 to $3,893 in 2024.
- 2020: $19,035
- 2021: $15,212
- 2022: $4,828
- 2023: $3,032
- 2024: $3,893
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 89% from 113 in 2017 to 12 in 2022.
- 2017: 113
- 2018: 25
- 2019: 26
- 2020: 12
- 2022: 12
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30-day fills
30-day fills decreased 91% from 130 in 2017 to 12 in 2022.
- 2017: 130
- 2018: 27
- 2019: 32
- 2020: 12
- 2022: 12
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Part D drug cost
Part D drug cost decreased 96% from $6,867 in 2017 to $271 in 2022.
- 2017: $6,867
- 2018: $576
- 2019: $556
- 2020: $461
- 2022: $271
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 48% from $13,823.29 in 2021 to $7,172.80 in 2025.
- 2021: $13,823.29
- 2022: $8,585.20
- 2023: $9,124.11
- 2024: $1,733.11
- 2025: $7,172.80
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2022), CMS Open Payments (2025), 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 2025 (payments made January 1 – December 31, 2025): 16 records totaling $7,172.80.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Octapharma USA, Inc. |
Honoraria
Cash or cash equivalent
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FIBRYGA & BALFAXAR | General | $4,000.00 |
| FUJIFILM SonoSite, Inc. |
Consulting Fee
Cash or cash equivalent
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Sonosite MT | General | $800.00 |
| Octapharma USA, Inc. |
Travel and Lodging
Cash or cash equivalent
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FIBRYGA & BALFAXAR | General | $635.60 |
| Octapharma USA, Inc. |
Travel and Lodging
Cash or cash equivalent
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FIBRYGA & BALFAXAR | General | $268.22 |
| Octapharma USA, Inc. |
Food and Beverage
Cash or cash equivalent
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FIBRYGA & BALFAXAR | General | $211.04 |
| Ancora Heart, Inc. |
Food and Beverage
Cash or cash equivalent
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AccuCinch | General | $196.19 |
| Ancora Heart, Inc. |
Food and Beverage
Cash or cash equivalent
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AccuCinch | General | $189.63 |
| Octapharma USA, Inc. |
Travel and Lodging
Cash or cash equivalent
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FIBRYGA & BALFAXAR | General | $180.36 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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AVALUS | General | $164.80 |
| Octapharma USA, Inc. |
Travel and Lodging
Cash or cash equivalent
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FIBRYGA & BALFAXAR | General | $141.33 |
| Octapharma USA, Inc. |
Travel and Lodging
Cash or cash equivalent
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FIBRYGA & BALFAXAR | General | $140.40 |
| Octapharma USA, Inc. |
Travel and Lodging
Cash or cash equivalent
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FIBRYGA & BALFAXAR | General | $122.85 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
TRICLIP | General | $63.40 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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AMPLATZER AMULET | General | $34.98 |
| Octapharma USA, Inc. |
Food and Beverage
Cash or cash equivalent
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FIBRYGA & BALFAXAR | General | $17.00 |
| Octapharma USA, Inc. |
Food and Beverage
Cash or cash equivalent
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FIBRYGA & BALFAXAR | General | $7.00 |
Source: CMS Open Payments, program year 2025, 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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93355
Ultrasound of heart with probe in esophagus during surgery on heart or great blood vessels with report
|
20 | 20 | $689.28 | $241.77 |
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.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2022.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Lansoprazole | Lansoprazole | 12 | 336 | $270.71 | — |
Source: CMS Part D by Provider and Drug, 2022; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
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.
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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ANESTHESIOLOGY
I20120221000517
WA
1355312968
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
The Association Of University Physicians
325 9th Ave, Seattle, WA 981042420
Phone: 2067313000
The Association Of University Physicians
1959 Ne Pacific St, Seattle, WA 981950001
Phone: 2065984333
The Association Of University Physicians
1701 Columbia Rd, Seattle, WA 981950001
Phone: 2065983100
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Student in an Organized Health Care Education/Training Program
Doctor of Medicine (M.D.)
Psychiatry & Neurology - Neurology
Hospitalist
Doctor of Medicine (M.D.)
MDMPH
Student in an Organized Health Care Education/Training Program
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated October 25, 2006.
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 Seattle
- Dr. Katherine Heller, MD
- Dr. Aaron Levin, MD
- Dr. Matthew Hill, MD
- Dr. Jamie Kim, MD
- Dr. Michael Bialos, MD
- Dr. Vanessa Cervantes, MD
More public profiles in Washington
Directory navigation, in NPI number order.
- Victoria Landon, CRNA Nurse Anesthetist, Certified Registered · Seattle
- Caroline Northrup, PA-C Physician Assistant · Wenatchee
- Zachary Brown, DPT Physical Therapist · East Wenatchee
- Natalya Kumar, FNP-BC Nurse Practitioner · Lynnwood
- Sophie Warshaw, DPT Physical Therapist · Puyallup
- Ajaipal Dhanoa, DDS Dentist - General Practice · Tumwater
- Theresa Drahn, PT Physical Medicine & Rehabilitation · Lopez Island
- Ashley Mcdowell, MD Hospitalist · Seattle
- Taylor Martin, PA-C Physician Assistant · Gig Harbor
- Tristin Schab, ARNP Nurse Practitioner - Family · Richland
- Mohammed Al Qaraghouli, MD Obstetrics & Gynecology · Centralia
- Susan Xie, MD Allergy & Immunology · Seattle
Mailing Address
1959 Ne Pacific St, Ss327f
Seattle, WA 981950001
Phone: 2065981462