Dr. Jennifer P. Stone, MD
- Medicare services, 2023
- 154
- Part D claims, 2024
- 14
- Industry payments
- $2,788
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 200 Groton Rd, Ayer, MA 01432
- Practice phone
- Call (978) 784-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Steward Medical Group - Ayer (200 Groton Rd)
Multi-specialty group site · Ayer, Massachusetts
Find Dr. Stone'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. Jennifer P. Stone is a hematologist and oncologist in Ayer, Massachusetts
Dr. Stone practices at Steward Medical Group - Ayer (200 Groton Rd) in Ayer, Massachusetts.
Dr. Stone's NPI, 1770672347, was assigned on October 12, 2006. Dr. Stone graduated from Harvard Medical School in 1986. Dr. Stone holds Massachusetts license 76203.
- NPI
- 1770672347NPI Registry (opens in a new tab)
- NPI enumeration date
- October 12, 2006
- NPI status
- Active
- Practice phone
- (978) 784-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jennifer P. Stone practices at Steward Medical Group - Ayer (200 Groton Rd) in Ayer, Massachusetts
Dr. Stone's primary practice is Steward Medical Group - Ayer (200 Groton Rd), at 200 Groton Rd, Ayer, MA 01432. The practice phone is (978) 784-9000.
- Steward Medical Group - Ayer (200 Groton Rd)200 Groton Rd, Ayer, MA 01432Phone(978) 784-9000
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jennifer P. Stone is affiliated with 1 site of care and 1 medical group
Dr. Stone's primary practice is Steward Medical Group - Ayer (200 Groton Rd) in Ayer, Massachusetts. The medical group on file is Steward Medical Group.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Jennifer P. Stone's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stone practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Steward Medical Group - Ayer (200 Groton Rd) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jennifer P. Stone is one of 429 hematologists and oncologists in Massachusetts
Hematology and oncology is Dr. Stone's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Stone is licensed in Massachusetts.
Specialties and state licenses
- Hematology and oncology, MassachusettsPrimary
Hematologists and oncologists near Dr. Stone
Counts of hematologists and oncologists 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. Jennifer P. Stone billed Medicare for 154 services in 2023
CMS data shows 154 Medicare services from Dr. Stone across 4 procedure codes in 2023, all of them office visits. Medicare paid $12,145 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Stone's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 3502023: 15456%
Dr. Stone compared with the Massachusetts median for hematologists and oncologists, 2023
- Dr. Stone
- Massachusetts median
- Medicare services
- 154vs 49569% below
- Part D claims
- 115vs 15124% below
Medians across 415 hematologists and oncologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Stone's most billed Medicare procedure codes, 2023
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. Stone and other hematologists and oncologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jennifer P. Stone's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Dr. Stone's median patient age at 67, with 44% women.
Dr. Stone's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women44%
- Men56%
Source: Dmand AI Patient Panel Data
Dr. Jennifer P. Stone wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Stone wrote 14 Medicare Part D claims for 11 patients. 86% of them were for generic drugs. They cover 6 drugs, with $26,162 in total drug cost. In 2022, CMS named 267 claims across 13 drugs.
Dr. Stone's Part D claims by kind of drug, 2024
- Generic12 claims86%
- Brand-name and other2 claims14%
Dr. Stone's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 2672023: 11557%
Drugs named by CMS: 6 in 2023, 13 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Jennifer P. Stone received $2,788 in industry payments from 2016 to 2023
CMS Open Payments shows 126 general payments to Dr. Stone from 32 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 84% of the total. Pfizer Inc. paid the most, $273.
General payments to Dr. Stone by program year, 2016 to 2023
General payments to Dr. Stone by kind, 2016 to 2023
- Food and beverage$2,35684%
- Education$43316%
Companies that paid Dr. Stone the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jennifer P. Stone graduated from Harvard Medical School
Dr. Stone graduated from Harvard Medical School in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jennifer P. Stone'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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)Medicare Part D Prescribers - by Provider (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 |
| 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. Jennifer P. Stone
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What is Dr. Jennifer P. Stone's NPI number?
Dr. Jennifer P. Stone's NPI number is 1770672347. It was assigned on October 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jennifer P. Stone?
Dr. Jennifer P. Stone is a hematologist and oncologist in Ayer, Massachusetts. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Jennifer P. Stone practice?
Dr. Stone practices at 200 Groton Rd, Ayer, MA 01432. Dr. Stone's primary practice is Steward Medical Group - Ayer (200 Groton Rd) in Ayer, Massachusetts.
What is Dr. Jennifer P. Stone's office phone number?
The practice phone on file for Dr. Stone is (978) 784-9000.
What is Dr. Jennifer P. Stone's medical license number?
Dr. Stone holds Massachusetts license 76203.
What medical group is Dr. Jennifer P. Stone part of?
Dr. Stone is linked to Steward Medical Group.
Does Dr. Jennifer P. Stone accept Medicare?
Yes. CMS data shows Dr. Stone billed Medicare for 154 services in 2023.
What services does Dr. Jennifer P. Stone bill to Medicare?
In 2023, Dr. Stone's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and office visit, new patient (99204).
Where did Dr. Jennifer P. Stone go to medical school?
Dr. Stone graduated from Harvard Medical School in 1986.
What drugs does Dr. Jennifer P. Stone prescribe most?
In 2023 Medicare Part D data, Dr. Stone's most prescribed drugs by claims were Letrozole, Anastrozole and Prednisone.
Has Dr. Jennifer P. Stone received payments from drug or device companies?
CMS Open Payments shows $2,788 in general payments to Dr. Stone from 32 companies from 2016 to 2023. The largest total came from Pfizer Inc.
How long has Dr. Jennifer P. Stone been practicing?
Dr. Stone graduated from medical school in 1986, 40 years ago.
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