Dr. Fabian A. Von Posern, MD
- 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
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Von Posern's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
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
- 1215991286NPI Registry (opens in a new tab)
- 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
- Get number
- 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.
- Corewell Health Grand Rapids Hospitals - Butterworth100 Michigan St NE, Grand Rapids, MI 49503 · Kent CountyPhone(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.
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.
| Site | EHR vendor and product |
|---|---|
| Corewell Health Grand Rapids Hospitals - Butterworth | Available with a free account |
| +2 more sites and 2 medical groups | Available 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, CaliforniaPrimary
- Arizona license
- Oregon license
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.
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.
Need commercial claims for Dr. Von Posern?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Von Posern and other anesthesiologists in Michigan.
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.
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
- High cholesterol75%
- High blood pressure58%
- Arthritis48%
- Osteoporosis21%
- Ischemic heart disease20%
- Mood disorders20%
- Depression17%
- 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
- 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.
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.
- Medical school
- Board certified in 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
- PPO4
- Medicare3
- POS2
- EPO1
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Fabian A. Von Posern'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 DataDmand AI Org Hierarchy 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) |
| 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. 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.
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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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