Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Alexandra Witte , PA-C

Physician Assistant โ€ข Boston, MA

Active NPI 1265164206 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

55 Fruit St
Boston, MA 021142621

Call 6177262000 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

55 Fruit St

Boston, MA 021142621

Telephone 6177262000
Organization at the Same NPPES Address or Phone
Massachusetts General Hospital Facility NPI 1184613721

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

NPPES lists 2 distinct additional practice-address records in Boston, MA; Jamaica Plain, MA. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Brigham And Womens Physicians Organization 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

2022

Medicare patients

229 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 $33,928 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 $26,665 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

769 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

$1,806,737 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)

Fewer than 11 payment records totaling $21.47 in 2025

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2025.

Guide: How to read an Open Payments record

Years since graduation

4 years (graduated 2022)

CMS Doctors and Clinicians data list 2022 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

2022

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

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.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Alexandra Witte 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 Witte 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 70% of clinicians listed under Physician Assistant in Boston, MA (2024, 510 clinicians with data). Median for this group: 118. Middle half: 40 to 287.

Close to the middle for clinicians listed under Physician Assistant in Massachusetts (2024, 2,142 clinicians with data). Median for this group: 222. Middle half: 79 to 552.

Medicare-allowed amount

A higher Medicare-allowed amount than 85% of clinicians listed under Physician Assistant in Boston, MA (2024, 510 clinicians with data). Median for this group: $10,838. Middle half: $3,776 to $24,245.

A higher Medicare-allowed amount than 65% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,142 clinicians with data). Median for this group: $19,073. Middle half: $6,686 to $39,911.

Paid by Medicare

A higher Medicare payment amount than 85% of clinicians listed under Physician Assistant in Boston, MA (2024, 510 clinicians with data). Median for this group: $7,962. Middle half: $2,814 to $18,094.

A higher Medicare payment amount than 70% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,142 clinicians with data). Median for this group: $14,188. Middle half: $5,025 to $29,930.

Medicare Part D prescriptions

More Part D prescriptions than 80% of clinicians listed under Physician Assistant in Boston, MA (2024, 574 clinicians with data). Median for this group: 92. Middle half: 27 to 292.

More Part D prescriptions than 65% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,255 clinicians with data). Median for this group: 175. Middle half: 52 to 564.

Part D drug cost

A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Boston, MA (2024, 574 clinicians with data). Median for this group: $1,258. Middle half: $294 to $26,549.

A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,255 clinicians with data). Median for this group: $2,484. Middle half: $458 to $50,541.

1,660 active clinicians are listed under Physician Assistant with a practice address in Boston, MA (4,715 in Massachusetts).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Boston

15.4% of these 1,660 clinicians have the CMS telehealth indicator.

57.1% of these 1,660 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025

Program year 2025 (payments made January 1 โ€“ December 31, 2025): fewer than 11 records totaling $21.47.

Manufacturer Payment Nature Product Type Amount ($)
Teleflex LLC
Food and Beverage
In-kind items and services
ARROW General $21.47

Source: CMS Open Payments, program year 2025, released June 30, 2026.

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 2022โ€“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, 2023โ€“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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
138 92 $556.05 $116.02
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
96 90 $546.50 $115.86
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
38 34 $774.68 $166.12
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
11 11 $207.45 $43.85

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
Pyridostigmine Bromide Pyridostigmine Bromide 74 5,550 $6,566.06 32
Midodrine Hcl Midodrine Hcl 51 3,628 $3,678.13 23
Gammagard Liquid Immun Glob G(Igg)/Gly/Iga Ov50 50 1,416 $967,983.55 โ€”
Sodium Chloride 0.9 % Sodium Chloride 41 1,074 $838.35 โ€”
Privigen Immun Glob G(Igg)/Pro/Iga 0-50 39 1,034 $432,117.14 โ€”
Gabapentin Gabapentin 23 1,440 $376.23 โ€”
Fludrocortisone Acetate Fludrocortisone Acetate 18 1,440 $346.17 โ€”
Propranolol Hcl Er Propranolol Hcl 18 1,002 $450.09 โ€”
Ondansetron Odt Ondansetron 15 236 $152.95 โ€”
Diltiazem 24hr Er (Cd) Diltiazem Hcl 15 1,290 $868.98 โ€”
Pyridostigmine Bromide Er Pyridostigmine Bromide 14 720 $8,848.21 โ€”
Gammaplex Immun Glob G(Igg)/Gly/Iga 0-50 14 343 $383,282.12 โ€”
Pregabalin Pregabalin 14 420 $264.32 โ€”
Carbidopa-Levodopa Carbidopa/Levodopa 13 1,170 $531.20 โ€”
Propranolol Hcl Propranolol Hcl 12 970 $223.55 โ€”
Verapamil Hcl Verapamil Hcl 12 540 $210.17 โ€”

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: 2025-04-11
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES MA PA8780

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Physician Assistant

NUCC Taxonomy Code: 363A00000X

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

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

Additional State Medicaid & Healthcare Payer Identifiers

Other Identifier Ma State License
PA8780 (MA)
Other Identifier Mcsr
MCS002316J (MA)

Medicare (PECOS) Enrollment & Ordering Eligibility

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

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20220912003138

Enrollment State Jurisdiction

MA

PECOS Control ID

2961887997

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

Brigham And Womens Physicians Organization Inc

75 Francis St, Boston, MA 021156110

Phone: 6177325500

Brigham And Womens Physicians Organization Inc

1153 Centre St, Jamaica Plain, MA 021303446

Phone: 6179837000

Secondary Practice Locations

75 Francis St

Boston, MA 021156106

Phone: 6179837580

1153 Centre St

Jamaica Plain, MA 021303446

Phone: 6179837580

Clinicians Sharing This Practice Address or Phone

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

18 listed
Dr. Hugh Auchincloss , MD

Thoracic Surgery (Cardiothoracic Vascular Surgery)

NPI 1003076522

Doctor of Medicine (M.D.)

Doris Bernacet , NP

Nurse Practitioner

NPI 1033547633

Nurse Practitioner

NPI 1003478843

Doctor of Philosophy (Ph.D.)

Dr. John Danko , DO

Physical Medicine & Rehabilitation

NPI 1003109596

Doctor of Osteopathic Medicine (D.O.)

Dr. Tiffany Dharia , MD

Internal Medicine

NPI 1023578192

Doctor of Medicine (M.D.)

Dr. Kirsten Engel , MD

Emergency Medicine - Hospice and Palliative Medicine

NPI 1033191770

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

13 Historical Events
๐Ÿ“
Updated Practice Location April 11, 2025

Registered at 55 FRUIT ST, BOSTON, MA 021142621 (Tel: 6177262000)

๐Ÿ“
Updated Business Mailing Address April 11, 2025

Registered at 4 LONGFELLOW PL APT 1802, BOSTON, MA 021142815

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 11, 2025

Physician Assistant (license number reported to NPPES: MA PA8780)

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) November 01, 2024

Physician Assistant

๐Ÿ‘ค
Provider Name / Credentials Updated October 02, 2024

Recorded as ALEXANDRA WITTE, PA-C

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) October 02, 2024

Physician Assistant (license number reported to NPPES: MA PA8780)

๐Ÿ“
Updated Business Mailing Address December 10, 2023

Registered at 1153 CENTRE ST # 4I, BOSTON, MA 021303446 (Tel: 6179837580)

โœ…
NPI Profile Active June 28, 2022

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) June 28, 2022

Registered at 1153 CENTRE ST, JAMAICA PLAIN, MA 021303446 (Tel: 6179837580)

๐Ÿ“
Business Mailing Address (Initial Record) June 28, 2022

Registered at 4 LONGFELLOW PL APT 709, BOSTON, MA 021142805 (Tel: 5086494081)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) June 28, 2022

Recorded as ALEXANDRA KNIEF, PA-C

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 28, 2022

Physician Assistant

๐ŸŸข
Initial NPI Registration & Enumeration June 28, 2022

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1265164206
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 28, 2022
Last Update: April 11, 2025
Sole Proprietor: No

Other Physician Assistants in Boston

All Physician Assistants in Boston

Mailing Address

4 Longfellow Pl Apt 1802

Boston, MA 021142815

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.