Kathrine Fleming
Nurse Practitioner • Boston, MA
450 Brookline Ave
Boston, MA 022155418
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Kathrine Fleming is listed in NPPES under Nurse Practitioner.
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NPI assigned on July 31, 2020; this date does not establish years in practice.
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Published CMS data list 349 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Letrozole — 150 prescription fills, including refills.
- Anastrozole — 58 prescription fills, including refills.
- Gabapentin — 40 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 9 records in the table · Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 65% of clinicians listed under Nurse Practitioner in Boston, MA (2024, 388 clinicians with data). Median for this group: 175. Middle half: 60 to 516.
Close to the middle for Part D prescriptions among clinicians listed under Nurse Practitioner in Massachusetts (2024, 1,589 clinicians with data). Median for this group: 330. Middle half: 89 to 1,072.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 484 in 2021 to 349 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021–2024.
Practice Location & Contact Primary Location
450 Brookline Ave
Boston, MA 022155418
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
848 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$24,986 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021–2025.
NPI first issued
2020
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Kathrine Fleming has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Kathrine Fleming as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Boston and Massachusetts
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 65% of clinicians listed under Nurse Practitioner in Boston, MA (2024, 388 clinicians with data). Median for this group: 175. Middle half: 60 to 516.
Close to the middle for clinicians listed under Nurse Practitioner in Massachusetts (2024, 1,589 clinicians with data). Median for this group: 330. Middle half: 89 to 1,072.
Part D drug cost
Close to the middle for clinicians listed under Nurse Practitioner in Boston, MA (2024, 388 clinicians with data). Median for this group: $23,656. Middle half: $1,374 to $212,837.
Close to the middle for clinicians listed under Nurse Practitioner in Massachusetts (2024, 1,589 clinicians with data). Median for this group: $25,224. Middle half: $1,758 to $161,316.
961 active clinicians are listed under Nurse Practitioner with a practice address in Boston, MA (3,483 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Boston
25.1% of these 961 clinicians have the CMS telehealth indicator.
47.6% of these 961 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 28% from 484 in 2021 to 349 in 2024.
- 2021: 484
- 2022: 508
- 2023: 325
- 2024: 349
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30-day fills
30-day fills decreased 23% from 1,101 in 2021 to 848 in 2024.
- 2021: 1,101
- 2022: 1,244
- 2023: 849
- 2024: 848
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Part D drug cost
Part D drug cost decreased 90% from $248,094 in 2021 to $24,986 in 2024.
- 2021: $248,094
- 2022: $199,490
- 2023: $16,316
- 2024: $24,986
Sources: CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Letrozole | Letrozole | 150 | 13,033 | $3,578.22 | 69 |
| Anastrozole | Anastrozole | 58 | 5,022 | $1,282.14 | 21 |
| Gabapentin | Gabapentin | 40 | 1,450 | $294.52 | 11 |
| Tamoxifen Citrate | Tamoxifen Citrate | 29 | 2,610 | $1,370.66 | 15 |
| Alendronate Sodium | Alendronate Sodium | 22 | 1,512 | $160.09 | — |
| Eliquis | Apixaban | 14 | 600 | $11,135.58 | — |
| Xarelto | Rivaroxaban | 13 | 390 | $6,846.66 | — |
| Pregabalin | Pregabalin | 12 | 450 | $283.24 | — |
| Ondansetron Hcl | Ondansetron Hcl | 11 | 210 | $34.78 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2020-07-31NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20201210000066
MA
0547672818
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Hematology & Oncology
Doctor of Medicine (M.D.)
Internal Medicine - Medical Oncology
Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)
Internal Medicine - Medical Oncology
Doctor of Medicine (M.D.)
Internal Medicine - Medical Oncology
Physician Assistant
Internal Medicine - Hematology & Oncology
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated July 31, 2020.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from August 2020 to August 2026.
NPI Administrative Meta
Other Nurse Practitioners in Boston
- Kasi Lampropoulos
- Nancy Kelly, NP
- Brittany Lagarce
- Kathleen Leflar, FNP
- Dr. Robyn Ait Ali, DNP, NP-C, APRN
- Michayla Maxwell, FNP-C
Mailing Address
450 Brookline Ave
Boston, MA 022155418