Dr. Pierre-Olivier Grenier, MD
- Hospital affiliations
- 1
- Industry payments
- $26
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2019
- Practice address
- 300 Longwood Avenue, Boston, MA 02115
- Practice phone
- Call (617) 735-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Pierre-Olivier Grenier is a pediatric dermatology physician in Boston, Massachusetts
Dr. Grenier practices at Boston Children's Hospital in Boston, Massachusetts, part of The Children's Hospital.
Dr. Grenier's NPI, 1144881160, was assigned on June 21, 2019. Dr. Grenier holds Massachusetts license 293663.
- NPI
- 1144881160NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002283223
- NPI enumeration date
- June 21, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 735-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Pierre-Olivier Grenier practices at Boston Children's Hospital in Boston, Massachusetts
Dr. Grenier's primary practice is Boston Children's Hospital, at 300 Longwood Avenue, Boston, MA 02115 in Suffolk County. The practice phone is (617) 735-6000.
- Boston Children's Hospital300 Longwood Avenue, Boston, MA 02115 · Suffolk CountyPhone(617) 735-6000
Source: Dmand AI Affiliation Data
Dr. Pierre-Olivier Grenier is affiliated with 2 sites of care and 1 medical group
Dr. Grenier's primary practice is Boston Children's Hospital in Boston, Massachusetts, part of The Children's Hospital. The medical group on file is Boston Children's Hospital. Dmand AI also links Dr. Grenier to 1 more dialysis center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Pierre-Olivier Grenier's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grenier practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Boston Children's Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across The Children's Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Pierre-Olivier Grenier is one of 13 pediatric dermatology physicians in Massachusetts
Pediatric dermatology is Dr. Grenier's primary specialty in the NPI Registry, under taxonomy code 207NP0225X. Dr. Grenier is licensed in Massachusetts.
Specialties and state licenses
- Pediatric dermatology, MassachusettsPrimary
Pediatric dermatology physicians near Dr. Grenier
Counts of pediatric dermatology physicians 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. Pierre-Olivier Grenier's patients have a median age of 7
Across all payers, Dmand AI patient panel data puts Dr. Grenier's median patient age at 7, with 53% 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 7
Patient panel by sex, all payers
- Women53%
- Men46%
Source: Dmand AI Patient Panel Data
How Dr. Pierre-Olivier Grenier takes part in Medicare
Dr. Grenier 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)
Dr. Pierre-Olivier Grenier received $26 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Grenier from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Incyte Corporation paid the most, $26.
Companies that paid Dr. Grenier the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Pierre-Olivier 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 | 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 |
| 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) |
| 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. Pierre-Olivier 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. Pierre-Olivier Grenier's NPI number?
Dr. Pierre-Olivier Grenier's NPI number is 1144881160. It was assigned on June 21, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Pierre-Olivier Grenier?
Dr. Pierre-Olivier Grenier is a pediatric dermatology physician in Boston, Massachusetts. The primary specialty in the NPI Registry is Pediatric Dermatology Physician (taxonomy code 207NP0225X).
Where does Dr. Pierre-Olivier Grenier practice?
Dr. Grenier practices at 300 Longwood Avenue, Boston, MA 02115. Dr. Grenier's primary practice is Boston Children's Hospital in Boston, Massachusetts, part of The Children's Hospital. Dmand AI also links Dr. Grenier to 1 dialysis center.
What is Dr. Pierre-Olivier Grenier's office phone number?
The practice phone on file for Dr. Grenier is (617) 735-6000.
What is Dr. Pierre-Olivier Grenier's medical license number?
Dr. Grenier holds Massachusetts license 293663.
Which hospitals is Dr. Pierre-Olivier Grenier affiliated with?
Dr. Grenier practices at Boston Children's Hospital in Boston, Massachusetts.
What medical group is Dr. Pierre-Olivier Grenier part of?
Dr. Grenier is linked to Boston Children's Hospital.
Does Dr. Pierre-Olivier Grenier accept Medicare?
Yes. CMS lists Dr. Grenier as accepting Medicare assignment.
Has Dr. Pierre-Olivier Grenier received payments from drug or device companies?
CMS Open Payments shows $26 in general payments to Dr. Grenier from 1 company from 2025 to 2025. The largest total came from Incyte Corporation.
How long has Dr. Pierre-Olivier Grenier been practicing?
Dr. Grenier graduated from medical school in 2013, 13 years ago.
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