Dr. Fabian A. Von Posern, MD

  • Grand Rapids, MI
  • Anesthesiologist
NPI1215991286PAC ID4789621640
Medicare services, 2024
307
Medicare patients, 2024
338
Hospital affiliations
1
Industry payments
$777
Medical groups
3
Practice address
100 Michigan St NE, Grand Rapids, MI 49503
Practice phone
Call (616) 391-1774
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

See all 6 affiliations

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Dr. Fabian A. Von Posern is an anesthesiologist in Grand Rapids, Michigan

Dr. Von Posern practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health.

Dr. Von Posern's NPI, 1215991286, was assigned on April 14, 2006. Dr. Von Posern graduated from Rutgers New Jersey Medical School in 1992. Dr. Von Posern's California license number on file is G77675.

NPI and contact details
Medicare PAC ID
4789621640
NPI enumeration date
April 14, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(616) 391-1774
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
60
Medical school graduation
1992

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Fabian A. Von Posern practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan

Dr. Von Posern's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth, at 100 Michigan St NE, Grand Rapids, MI 49503 in Kent County. The practice phone is (616) 391-1774.

Source: Dmand AI Affiliation Data

Dr. Fabian A. Von Posern is affiliated with 3 sites of care and 3 medical groups

Dr. Von Posern's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. The medical group on file is Corewell Health Medical Group West. Dmand AI also links Dr. Von Posern to 2 more group practices and clinics and 2 medical groups, each named with a free account.

See all 6 affiliations for Dr. Von Posern

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Fabian A. Von Posern's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Von Posern practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Corewell Health Grand Rapids Hospitals - ButterworthAvailable with a free account
+2 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Fabian A. Von Posern is one of 1,302 anesthesiologists in Michigan

Anesthesiology is Dr. Von Posern's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Von Posern is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Von Posern's licenses on file in 3 states: California, Arizona and Oregon.

Specialties and state licenses

  • Anesthesiology, CaliforniaPrimaryLicense G77675 · 1993 to 2025 · taxonomy 207L00000X
  • Arizona license1999 to 2021
  • Oregon license1998 to 2021

Anesthesiologists near Dr. Von Posern

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. Fabian A. Von Posern billed Medicare for 307 services in 2024

CMS data shows 307 Medicare services from Dr. Von Posern across 6 procedure codes in 2024, for 338 Medicare patients. Medicare paid $33,610 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024307
Medicare patients338
Paid by Medicare$33,610
Procedure codes6

Dr. Von Posern's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Anesthesia
2023: 3552024: 30714%

Dr. Von Posern compared with the Michigan median for anesthesiologists, 2024

  • Dr. Von Posern
  • Michigan median
Medicare services
307vs 893.4 times
Medicare patients
338vs 17791% above

Medians across 1,283 anesthesiologists in Michigan with Dmand AI profiles that report each measure.

Dr. Von Posern'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.

See all procedures by Dr. Von Posern

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Von Posern and other anesthesiologists in Michigan.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Fabian A. Von Posern treated 338 Medicare patients in 2024, average age 75

CMS counts 338 Medicare patients who saw Dr. Von Posern in 2024. The largest group is 65 to 74, with 168 patients. 75% of them have high cholesterol, and 58% have high blood pressure. Their average risk score is 0.90, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Von Posern's median patient age at 52, with 66% women.

Medicare patients, 2024338
Average age75
Average risk score0.90

Dr. Von Posern's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Von Posern's Medicare patients by sex, 2024

  • Women19658%
  • Men14242%

Chronic conditions among Dr. Von Posern's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure58%
  3. Arthritis48%
  4. Osteoporosis21%
  5. Ischemic heart disease20%
  6. Mood disorders20%
  7. Depression17%
  8. Anxiety16%

Share of Medicare patients with each condition. A patient can have several.

Dr. Von Posern's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 52

Patient panel by sex, all payers

  • Women66%
  • Men34%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

How Dr. Fabian A. Von Posern takes part in Medicare

Dr. Von Posern accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Fabian A. Von Posern received $777 in industry payments in 2023

CMS Open Payments shows 2 general payments to Dr. Von Posern from 1 drug or device company in 2023. Consulting fees make up the largest share, 89% of the total. Medtronic, Inc. paid the most, $777.

General payments to Dr. Von Posern by kind, 2023 to 2023

$777in total
  • Consulting fees$69089%
  • Travel and lodging$8711%

Companies that paid Dr. Von Posern the most, 2023 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Von Posern

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Fabian A. Von Posern graduated from Rutgers New Jersey Medical School

Dr. Von Posern graduated from Rutgers New Jersey Medical School in 1992.

  1. Medical schoolRutgers New Jersey Medical School
  2. Board certified in anesthesiologyAmerican Board of Anesthesiology

Source: Dmand AI Professional Profile Data

Dr. Fabian A. Von Posern accepts plans from 6 insurance carriers

Dr. Von Posern is in network with 6 carriers, including United Healthcare, Blue Cross Blue Shield of Massachusetts and HCSC. PPO plans come from the most carriers, 4. Check the plan with the practice before a visit.

  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Aspirus Health Plan
  • Blue Cross and Blue Shield of Kansas City
  • Elevance

Plan types Dr. Von Posern accepts, by number of carriers

  1. PPO4
  2. Medicare3
  3. POS2
  4. EPO1
  5. HMO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Fabian A. Von Posern's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Fabian A. Von Posern

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. Fabian A. Von Posern's NPI number?

Dr. Fabian A. Von Posern's NPI number is 1215991286. It was assigned on April 14, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Fabian A. Von Posern?

Dr. Fabian A. Von Posern is an anesthesiologist in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).

Where does Dr. Fabian A. Von Posern practice?

Dr. Von Posern practices at 100 Michigan St NE, Grand Rapids, MI 49503. Dr. Von Posern's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Dmand AI also links Dr. Von Posern to 2 group practices and clinics and 2 medical groups.

What is Dr. Fabian A. Von Posern's office phone number?

The practice phone on file for Dr. Von Posern is (616) 391-1774.

What is Dr. Fabian A. Von Posern's medical license number?

Dr. Von Posern's California license number on file is G77675, one of the licenses on file in 3 states.

Which states has Dr. Fabian A. Von Posern been licensed in?

Dmand AI has state licenses on file for Dr. Von Posern in California (1993 to 2025), Arizona (1999 to 2021) and Oregon (1998 to 2021).

Which hospitals is Dr. Fabian A. Von Posern affiliated with?

Dr. Von Posern practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan.

What medical group is Dr. Fabian A. Von Posern part of?

Dr. Von Posern is linked to Corewell Health Medical Group West. Dmand AI links Dr. Von Posern to 2 more medical groups.

Does Dr. Fabian A. Von Posern accept Medicare?

Yes. CMS data shows Dr. Von Posern billed Medicare for 307 services in 2024, and Dr. Von Posern accepts Medicare assignment.

How many Medicare patients does Dr. Fabian A. Von Posern see?

CMS counts 338 Medicare patients who saw Dr. Von Posern in 2024, with an average age of 75.

Show 6 more questionsShow fewer questions

Is Dr. Fabian A. Von Posern board certified?

Yes. Dr. Von Posern is board certified in anesthesiology by the American Board of Anesthesiology.

What services does Dr. Fabian A. Von Posern bill to Medicare?

In 2024, Dr. Von Posern's most billed Medicare services were anesthesia (00142), anesthesia (00103) and anesthesia (00140).

Where did Dr. Fabian A. Von Posern go to medical school?

Dr. Von Posern graduated from Rutgers New Jersey Medical School in 1992.

Has Dr. Fabian A. Von Posern received payments from drug or device companies?

CMS Open Payments shows $777 in general payments to Dr. Von Posern from 1 company from 2023 to 2023. The largest total came from Medtronic, Inc.

How long has Dr. Fabian A. Von Posern been practicing?

Dr. Von Posern graduated from medical school in 1992, 34 years ago.

What insurance does Dr. Fabian A. Von Posern accept?

Dr. Von Posern is in network with 6 carriers, including United Healthcare, Blue Cross Blue Shield of Massachusetts and HCSC. PPO plans come from the most carriers, 4. Check the plan with the practice before a visit.

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