Dr. Mikhail Semenovich Gelfenbeyn, MD
- Hospital affiliations
- 2
- Industry payments
- $1,181
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 325 9th Avenue, Seattle, WA 98104
- Practice phone
- Call (206) 744-9535
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gelfenbeyn'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. Mikhail Semenovich Gelfenbeyn is a neurosurgeon in Seattle, Washington
Dr. Gelfenbeyn practices at Harborview Medical Center in Seattle, Washington, part of University of Washington.
Dr. Gelfenbeyn's NPI, 1659481455, was assigned on August 30, 2006. Dr. Gelfenbeyn holds Washington license MD60112267.
- NPI
- 1659481455NPI Registry (opens in a new tab)
- NPI enumeration date
- August 30, 2006
- NPI status
- Active
- Practice phone
- (206) 744-9535
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Mikhail Semenovich Gelfenbeyn practices at Harborview Medical Center in Seattle, Washington
Dr. Gelfenbeyn's primary practice is Harborview Medical Center, at 325 9th Avenue, Seattle, WA 98104 in King County. The practice phone is (206) 744-9535.
- Harborview Medical Center325 9th Avenue, Seattle, WA 98104 · King CountyPhone(206) 744-9535
Source: Dmand AI Affiliation Data
Dr. Mikhail Semenovich Gelfenbeyn is affiliated with 2 sites of care and 1 medical group
Dr. Gelfenbeyn's primary practice is Harborview Medical Center in Seattle, Washington, part of University of Washington. The medical group on file is UW Physicians. Dmand AI also links Dr. Gelfenbeyn to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mikhail Semenovich Gelfenbeyn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gelfenbeyn practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Harborview Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across University of Washington and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mikhail Semenovich Gelfenbeyn is one of 187 neurosurgeons in Washington
Neurological surgery is Dr. Gelfenbeyn's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Gelfenbeyn is licensed in Washington.
Specialties and state licenses
- Neurological surgery, WashingtonPrimary
Neurosurgeons near Dr. Gelfenbeyn
Counts of neurosurgeons 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. Mikhail Semenovich Gelfenbeyn's patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Dr. Gelfenbeyn's median patient age at 64, with 15% women.
Dr. Gelfenbeyn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women15%
- Men85%
Source: Dmand AI Patient Panel Data
Dr. Mikhail Semenovich Gelfenbeyn received $1,181 in industry payments from 2016 to 2020
CMS Open Payments shows 15 general payments to Dr. Gelfenbeyn from 5 drug and device companies from 2016 to 2020. Travel and lodging make up the largest share, 54% of the total. Stryker Corporation paid the most, $770.
General payments to Dr. Gelfenbeyn by program year, 2016 to 2020
General payments to Dr. Gelfenbeyn by kind, 2016 to 2020
- Travel and lodging$64354%
- Food and beverage$53946%
Companies that paid Dr. Gelfenbeyn the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mikhail Semenovich Gelfenbeyn'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Mikhail Semenovich Gelfenbeyn
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. Mikhail Semenovich Gelfenbeyn's NPI number?
Dr. Mikhail Semenovich Gelfenbeyn's NPI number is 1659481455. It was assigned on August 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mikhail Semenovich Gelfenbeyn?
Dr. Mikhail Semenovich Gelfenbeyn is a neurosurgeon in Seattle, Washington. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. Mikhail Semenovich Gelfenbeyn practice?
Dr. Gelfenbeyn practices at 325 9th Avenue, Seattle, WA 98104. Dr. Gelfenbeyn's primary practice is Harborview Medical Center in Seattle, Washington, part of University of Washington. Dmand AI also links Dr. Gelfenbeyn to 1 hospital.
What is Dr. Mikhail Semenovich Gelfenbeyn's office phone number?
The practice phone on file for Dr. Gelfenbeyn is (206) 744-9535.
What is Dr. Mikhail Semenovich Gelfenbeyn's medical license number?
Dr. Gelfenbeyn holds Washington license MD60112267.
Which hospitals is Dr. Mikhail Semenovich Gelfenbeyn affiliated with?
Dr. Gelfenbeyn practices at Harborview Medical Center in Seattle, Washington. Dmand AI links Dr. Gelfenbeyn to 1 more hospital.
What medical group is Dr. Mikhail Semenovich Gelfenbeyn part of?
Dr. Gelfenbeyn is linked to UW Physicians.
Has Dr. Mikhail Semenovich Gelfenbeyn received payments from drug or device companies?
CMS Open Payments shows $1,181 in general payments to Dr. Gelfenbeyn from 5 companies from 2016 to 2020. The largest total came from Stryker Corporation.
How long has Dr. Mikhail Semenovich Gelfenbeyn been practicing?
Dr. Gelfenbeyn's NPI was assigned in 2006.
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