Gracelyn Oesterle
- Part D claims, 2024
- 39
- Hospital affiliations
- 2
- Industry payments
- $67
- Medical groups
- 3
- State license
- 1
- Practice address
- 55 Fruit Street, Boston, MA 02114
- Practice phone
- Call (617) 726-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Gracelyn Oesterle'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.
Gracelyn Oesterle is a physician assistant in Boston, Massachusetts
Gracelyn Oesterle practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Gracelyn Oesterle's NPI, 1154040939, was assigned on August 24, 2022.
- NPI
- 1154040939NPI Registry (opens in a new tab)
- NPI enumeration date
- August 24, 2022
- NPI status
- Active
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 29
- Medical school graduation
- 2023
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Gracelyn Oesterle practices at Massachusetts General Hospital in Boston, Massachusetts
Gracelyn Oesterle's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.
- Massachusetts General Hospital55 Fruit Street, Boston, MA 02114 · Suffolk CountyPhone(617) 726-2000
Source: Dmand AI Affiliation Data
Gracelyn Oesterle is affiliated with 3 sites of care and 3 medical groups
Gracelyn Oesterle's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Gracelyn Oesterle is also affiliated with Landmark Medical Center. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Gracelyn Oesterle to 2 more medical groups and 1 community health center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Gracelyn Oesterle's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gracelyn Oesterle practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Hospital | 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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Gracelyn Oesterle is one of 3,922 physician assistants in Massachusetts
Physician assistant is Gracelyn Oesterle's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Physician assistants near Gracelyn Oesterle
Counts of physician assistants 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
Gracelyn Oesterle's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Gracelyn Oesterle's median patient age at 71, with 55% women.
Gracelyn Oesterle's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women55%
- Men45%
Source: Dmand AI Patient Panel Data
Gracelyn Oesterle wrote 39 Medicare Part D claims in 2024
In 2024, Gracelyn Oesterle wrote 39 Medicare Part D claims for 31 patients. 95% of them were for generic drugs.
Gracelyn Oesterle's Part D claims by kind of drug, 2024
- Generic37 claims95%
- Brand-name and other2 claims5%
Drug classes CMS tracks in Gracelyn Oesterle's Part D claims, 2024
- Antibiotics54%21 of 39 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
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Gracelyn Oesterle received $67 in industry payments in 2025
CMS Open Payments shows 1 general payment to Gracelyn Oesterle from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. ViiV Healthcare Company paid the most, $67.
Companies that paid Gracelyn Oesterle 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 Gracelyn Oesterle'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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 Gracelyn Oesterle
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gracelyn Oesterle's NPI number?
Gracelyn Oesterle's NPI number is 1154040939. It was assigned on August 24, 2022, and it is active in the NPI Registry.
What does Gracelyn Oesterle specialize in?
Gracelyn Oesterle is a physician assistant in Boston, Massachusetts. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Gracelyn Oesterle practice?
Gracelyn Oesterle practices at 55 Fruit Street, Boston, MA 02114. Gracelyn Oesterle's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Gracelyn Oesterle to 2 medical groups and 1 community health center.
What is Gracelyn Oesterle's office phone number?
The practice phone on file for Gracelyn Oesterle is (617) 726-2000.
Which hospitals is Gracelyn Oesterle affiliated with?
Gracelyn Oesterle practices at Massachusetts General Hospital in Boston, Massachusetts. Gracelyn Oesterle is also affiliated with Landmark Medical Center.
What medical group is Gracelyn Oesterle part of?
Gracelyn Oesterle is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Gracelyn Oesterle to 2 more medical groups.
Has Gracelyn Oesterle received payments from drug or device companies?
CMS Open Payments shows $67 in general payments to Gracelyn Oesterle from 1 company from 2025 to 2025. The largest total came from ViiV Healthcare Company.
How long has Gracelyn Oesterle been practicing?
Gracelyn Oesterle graduated from medical school in 2023, 3 years ago.
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