Dr. Yannick Y. Grenier, MD
- Medicare services, 2019
- 144
- Part D claims, 2019
- 314
- Industry payments
- $556
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 300 Dorrance Ave, Buffalo, NY 14220
- Practice phone
- Call (216) 273-9800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Empire Wound Physician Services
Buffalo, New York
Find Dr. Grenier'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. Yannick Y. Grenier is a neurosurgeon in Buffalo, New York
Dr. Grenier practices at Empire Wound Physician Services in Buffalo, New York.
Dr. Grenier's NPI, 1083654875, was assigned on June 8, 2006. Dr. Grenier holds Ohio license 35.077606.
- NPI
- 1083654875NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800838491
- NPI enumeration date
- June 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (216) 273-9800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Yannick Y. Grenier practices at Empire Wound Physician Services in Buffalo, New York
Dr. Grenier's primary practice is Empire Wound Physician Services, at 300 Dorrance Ave, Buffalo, NY 14220 in Erie County. The practice phone is (216) 273-9800.
- Empire Wound Physician Services300 Dorrance Ave, Buffalo, NY 14220 · Erie CountyPhone(216) 273-9800
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Yannick Y. Grenier is affiliated with 2 sites of care and 1 medical group
Dr. Grenier's primary practice is Empire Wound Physician Services in Buffalo, New York. The medical group on file is Empire Wound Physician Services. Dmand AI also links Dr. Grenier to 1 more skilled nursing facility, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Yannick Y. Grenier's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grenier practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Empire Wound Physician Services | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Yannick Y. Grenier is one of 455 neurosurgeons in New York
Neurological surgery is Dr. Grenier's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dmand AI has Dr. Grenier's licenses on file in 2 states: Ohio and Florida.
Specialties and state licenses
- Neurological surgery, OhioPrimary
- Florida license
Neurosurgeons near Dr. Grenier
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. Yannick Y. Grenier billed Medicare for 144 services in 2019
CMS data shows 144 Medicare services from Dr. Grenier across 4 procedure codes in 2019. Medicare paid $14,272 for them.
Dr. Grenier's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 852019: 12952%
- Surgery
- 2018: 02019: 15
Where Dr. Grenier's Medicare services took place, 2019
- In an office12990%
- In a facility1510%
Dr. Grenier compared with the New York median for neurosurgeons, 2019
- Dr. Grenier
- New York median
- Medicare services
- 144vs 16211% below
- Part D claims
- 314vs 2214.3 times
Medians across 411 neurosurgeons in New York with Dmand AI profiles that report each measure.
Dr. Grenier's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grenier and other neurosurgeons in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Yannick Y. Grenier's patients have a median age of 81
Across all payers, Dmand AI patient panel data puts Dr. Grenier's median patient age at 81, with 52% women.
Dr. Grenier's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 81
Patient panel by sex, all payers
- Women52%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Yannick Y. Grenier wrote 314 Medicare Part D claims in 2019
In 2019, Dr. Grenier wrote 314 Medicare Part D claims. They cover 14 drugs, with $5,306 in total drug cost. In 2018, CMS named 77 claims across 4 drugs.
Dr. Grenier's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 772019: 314308%
Drugs named by CMS: 14 in 2019, 4 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Yannick Y. Grenier ranks in the 78th percentile for removal of tissue in Medicare
Dr. Grenier accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 48 procedures of removal of tissue by Dr. Grenier, more than 78% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Grenier ranks in Medicare procedure volume
- Removal of tissue
- 78th percentile48 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Yannick Y. Grenier received $556 in industry payments from 2016 to 2020
CMS Open Payments shows 23 general payments to Dr. Grenier from 12 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $284.
General payments to Dr. Grenier by program year, 2016 to 2020
Companies that paid Dr. Grenier 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. Yannick Y. Grenier'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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. Yannick Y. Grenier
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. Yannick Y. Grenier's NPI number?
Dr. Yannick Y. Grenier's NPI number is 1083654875. It was assigned on June 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Yannick Y. Grenier?
Dr. Yannick Y. Grenier is a neurosurgeon in Buffalo, New York. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. Yannick Y. Grenier practice?
Dr. Grenier practices at 300 Dorrance Ave, Buffalo, NY 14220. Dr. Grenier's primary practice is Empire Wound Physician Services in Buffalo, New York. Dmand AI also links Dr. Grenier to 1 skilled nursing facility.
What is Dr. Yannick Y. Grenier's office phone number?
The practice phone on file for Dr. Grenier is (216) 273-9800.
What is Dr. Yannick Y. Grenier's medical license number?
Dr. Grenier holds Ohio license 35.077606, one of the licenses on file in 2 states.
Which states has Dr. Yannick Y. Grenier been licensed in?
Dmand AI has state licenses on file for Dr. Grenier in Ohio and Florida.
What medical group is Dr. Yannick Y. Grenier part of?
Dr. Grenier is linked to Empire Wound Physician Services.
Does Dr. Yannick Y. Grenier accept Medicare?
Yes. CMS data shows Dr. Grenier billed Medicare for 144 services in 2019, and Dr. Grenier accepts Medicare assignment.
What services does Dr. Yannick Y. Grenier bill to Medicare?
In 2019, Dr. Grenier's most billed Medicare services were office visit, new patient (99204), office visit, established patient (99213) and office visit, established patient (99214).
What drugs does Dr. Yannick Y. Grenier prescribe most?
In 2019 Medicare Part D data, Dr. Grenier's most prescribed drugs by claims were Gabapentin, Duloxetine HCl and Baclofen.
Has Dr. Yannick Y. Grenier received payments from drug or device companies?
CMS Open Payments shows $556 in general payments to Dr. Grenier from 12 companies from 2016 to 2020. The largest total came from Boston Scientific Corporation.
How long has Dr. Yannick Y. Grenier been practicing?
Dr. Grenier graduated from medical school in 1993, 33 years ago.
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