Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Alexandra Cornwall

Nurse Practitioner โ€ข Boston, MA

Active NPI 1467126888 Individual Practitioner Female Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

800 Washington St
Boston, MA 021111552

Call 6176365000 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

800 Washington St

Boston, MA 021111552

Telephone 6176365000
Organization at the Same NPPES Address or Phone
Pratt Med/surg Dermatology Associates Inc Facility NPI 1528012176

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Pratt Medical Group Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2021

Medicare patients

288 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $56,920 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $44,665 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

30-day fills

729 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

$261,741 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

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 โ€“ by Provider and Drug, 2024.

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2021โ€“2025.

Guide: How to read an Open Payments record

Years since graduation

5 years (graduated 2021)

CMS Doctors and Clinicians data list 2021 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2021

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.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

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, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Alexandra Cornwall 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.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Alexandra Cornwall 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.

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.

Guide: What ordering and referring status means

Compared with the same specialty in Boston and Massachusetts

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 90% of clinicians listed under Nurse Practitioner in Boston, MA (2024, 352 clinicians with data). Median for this group: 215. Middle half: 102 to 369.

More Medicare Part B services than 75% of clinicians listed under Nurse Practitioner in Massachusetts (2024, 1,536 clinicians with data). Median for this group: 293. Middle half: 113 to 625.

Medicare-allowed amount

A higher Medicare-allowed amount than 90% of clinicians listed under Nurse Practitioner in Boston, MA (2024, 352 clinicians with data). Median for this group: $19,004. Middle half: $8,880 to $34,097.

A higher Medicare-allowed amount than 75% of clinicians listed under Nurse Practitioner in Massachusetts (2024, 1,536 clinicians with data). Median for this group: $24,187. Middle half: $9,751 to $49,233.

Paid by Medicare

A higher Medicare payment amount than 90% of clinicians listed under Nurse Practitioner in Boston, MA (2024, 352 clinicians with data). Median for this group: $14,068. Middle half: $6,399 to $25,756.

A higher Medicare payment amount than 80% of clinicians listed under Nurse Practitioner in Massachusetts (2024, 1,536 clinicians with data). Median for this group: $18,312. Middle half: $7,110 to $37,062.

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

A higher Part D drug cost than 75% of 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.

A higher Part D drug cost than 80% of 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.

Sources: CMS Medicare Physician & Other Practitioners (2024), 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 ยท Report an error.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2020โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2021โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
397 123 $207.54 $69.02
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
219 194 $395.26 $115.79
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
48 42 $381.07 $86.69

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Trulicity Dulaglutide 34 1,204 $40,508.99 11
Metformin Hcl Metformin Hcl 28 1,740 $3,339.77 โ€”
Single Use Swab Alcohol Antiseptic Pads 25 1,936 $100.16 โ€”
Alendronate Sodium Alendronate Sodium 24 1,816 $558.93 โ€”
Ozempic Semaglutide 24 840 $27,415.09 โ€”
Lantus Solostar Insulin Glargine,hum.Rec.Anlog 23 1,525 $2,397.07 โ€”
Ultra-Fine Short Pen Needle Pen Needle, Diabetic 22 605 $1,282.69 โ€”
Nano 2nd Gen Pen Needle Pen Needle, Diabetic 22 1,345 $2,321.23 โ€”
Rybelsus Semaglutide 22 660 $20,427.36 โ€”
Omnipod 5 Dexg7g6 Pods (Gen 5) Insulin Pump Cart,auto,bt,g6/7 21 690 $15,103.53 โ€”
Forteo Teriparatide 17 522 $70,434.18 โ€”
Glipizide Glipizide 16 1,440 $194.94 โ€”
Ultra-Fine Mini Pen Needle Pen Needle, Diabetic 16 1,460 $1,862.66 โ€”
Metformin Hcl Er Metformin Hcl 14 896 $127.02 โ€”
Jardiance Empagliflozin 13 630 $11,795.53 โ€”
Tymlos Abaloparatide 13 390 $34,112.52 โ€”
Atorvastatin Calcium Atorvastatin Calcium 12 708 $122.88 โ€”
Novolog Flexpen Insulin Aspart 12 382 $1,392.45 โ€”
Calcitonin-Salmon Calcitonin,salmon,synthetic 12 398 $611.52 โ€”
Teriparatide Teriparatide 12 360 $25,637.64 โ€”
Unifine Pentips Pen Needle, Diabetic 11 823 $406.44 โ€”
Zoledronic Acid Zoledronic Acid/Mannitol-Water 11 995 $1,588.31 11

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: 2021-08-09
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES MA RN2325324

(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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Massachusetts Board of Registration in Medicine.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NURSE PRACTITIONER

Medicare Enrollment ID

I20211006000392

Enrollment State Jurisdiction

MA

PECOS Control ID

5698173615

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Pratt Medical Group Inc

800 Washigton St, Boston, MA 021111552

Phone: 6176365000

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

23 listed
Dr. Michael Baratz , MD

Orthopaedic Surgery

NPI 1013177534

Doctor of Medicine (M.D.)

Dr. Niamh Carroll , MD

Internal Medicine

NPI 1023149069

Doctor of Medicine (M.D.)

Dr. Prianka Chawla , MD

Internal Medicine

NPI 1013270099

Doctor of Medicine (M.D.)

Dr. Wei Chen , MD

Anesthesiology

NPI 1033605548

Doctor of Medicine (M.D.)

Dr. David Drew , MD

Internal Medicine - Nephrology

NPI 1043472053

Doctor of Medicine (M.D.)

Dr. Michael Garcia , MD

Internal Medicine - Pulmonary Disease

NPI 1013397488

Doctor of Medicine (M.D.)

Career & Practice History

NPI enumerated August 09, 2021.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from September 2021 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1467126888
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 09, 2021
Last Update: August 09, 2021
Sole Proprietor: Yes

Other Nurse Practitioners in Boston

All Nurse Practitioners in Boston

Mailing Address

4 Trowbridge Pl Apt 3c

Cambridge, MA 021384129

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.