Dr. Mark Arthur Preston , MD
Urology โข Boston, MA
75 Francis St
Boston, MA 021156106
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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NPI assigned on July 11, 2011; this date does not establish years in practice.
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Published CMS data list 1,152 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 52000 โ Diagnostic exam of bladder and urethra using an endoscope: 262 service units.
- 99214 โ Established patient outpatient office visit: 199 service units.
- 99213 โ Established patient outpatient office visit: 176 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 19 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 165 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Tamsulosin Hcl โ 90 prescription fills, including refills.
- Finasteride โ 41 prescription fills, including refills.
- Myrbetriq (Mirabegron) โ 20 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 4 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 65% of clinicians listed under Urology in Boston, MA (2024, 57 clinicians with data). Median for this group: 638. Middle half: 405 to 1,213.
Close to the middle for Medicare Part B services among clinicians listed under Urology in Massachusetts (2024, 224 clinicians with data). Median for this group: 1,526. Middle half: 595 to 4,259.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 1,117 in 2020 to 1,152 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
75 Francis St
Boston, MA 021156106
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 2 distinct group names: Brigham And Womens Physicians Organization Inc; Dana-Farber Cancer Institute, 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
2006
What Public CMS Data Show
Urology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
641 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $237,032 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.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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 $176,916 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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
385 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
$16,483 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 โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $4,491.49 across 8 records.
By nature of payment
- Consulting Fee: $3,550.00 across 2 records.
- Food and Beverage: $906.43 across 5 records.
- Education: $35.06 across 1 record.
Reporting-company totals (3 largest of 7)
- Janssen Research & Development, LLC: $2,584.39 across 2 records.
- Janssen Research & Development, LLC: $1,012.50 across 1 record.
- Fennec Pharmaceuticals, Inc.: $388.56 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
20 years (graduated 2006)
CMS Doctors and Clinicians data list 2006 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished 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
2011
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.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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, โDoes your provider accept Medicare as full payment?โ
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
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.
Enrolled in Medicare (PECOS)
Dr. Preston 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 Dr. Preston 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 B services
More Medicare Part B services than 65% of clinicians listed under Urology in Boston, MA (2024, 57 clinicians with data). Median for this group: 638. Middle half: 405 to 1,213.
Close to the middle for clinicians listed under Urology in Massachusetts (2024, 224 clinicians with data). Median for this group: 1,526. Middle half: 595 to 4,259.
Medicare-allowed amount
A higher Medicare-allowed amount than 85% of clinicians listed under Urology in Boston, MA (2024, 57 clinicians with data). Median for this group: $80,662. Middle half: $41,295 to $141,107.
A higher Medicare-allowed amount than 70% of clinicians listed under Urology in Massachusetts (2024, 224 clinicians with data). Median for this group: $140,665. Middle half: $72,954 to $266,041.
Paid by Medicare
A higher Medicare payment amount than 85% of clinicians listed under Urology in Boston, MA (2024, 57 clinicians with data). Median for this group: $60,100. Middle half: $28,877 to $104,834.
A higher Medicare payment amount than 70% of clinicians listed under Urology in Massachusetts (2024, 224 clinicians with data). Median for this group: $103,305. Middle half: $53,507 to $199,677.
Medicare Part D prescriptions
Fewer Part D prescriptions than 65% of clinicians listed under Urology in Boston, MA (2024, 66 clinicians with data). Median for this group: 360. Middle half: 97 to 795.
Fewer Part D prescriptions than 80% of clinicians listed under Urology in Massachusetts (2024, 246 clinicians with data). Median for this group: 890. Middle half: 327 to 1,881.
Part D drug cost
Close to the middle for clinicians listed under Urology in Boston, MA (2024, 66 clinicians with data). Median for this group: $23,351. Middle half: $1,375 to $89,044.
A lower Part D drug cost than 75% of clinicians listed under Urology in Massachusetts (2024, 246 clinicians with data). Median for this group: $78,623. Middle half: $21,084 to $203,968.
112 active clinicians are listed under Urology with a practice address in Boston, MA (375 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Boston
50% of these 112 clinicians have the CMS telehealth indicator.
58.9% of these 112 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 B services
Medicare Part B services varied from year to year: 1,117 in 2020 and 1,152 in 2024.
- 2020: 1,117
- 2021: 1,425
- 2022: 1,236
- 2023: 1,187
- 2024: 1,152
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Medicare-allowed amount
Medicare-allowed amount increased 70% from $139,527 in 2020 to $237,032 in 2024.
- 2020: $139,527
- 2021: $264,887
- 2022: $209,176
- 2023: $201,065
- 2024: $237,032
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Paid by Medicare
Paid by Medicare increased 70% from $104,300 in 2020 to $176,916 in 2024.
- 2020: $104,300
- 2021: $204,561
- 2022: $158,959
- 2023: $154,005
- 2024: $176,916
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 150% from 66 in 2020 to 165 in 2024.
- 2020: 66
- 2021: 73
- 2022: 76
- 2023: 106
- 2024: 165
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30-day fills
30-day fills increased 183% from 136 in 2020 to 385 in 2024.
- 2020: 136
- 2021: 164
- 2022: 212
- 2023: 256
- 2024: 385
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Part D drug cost
Part D drug cost increased 1366% from $1,124 in 2020 to $16,483 in 2024.
- 2020: $1,124
- 2021: $8,308
- 2022: $3,044
- 2023: $13,648
- 2024: $16,483
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $934.00 in 2021 to $4,491.49 in 2025.
- 2021: $934.00
- 2022: $9,640.00
- 2023: $13,909.50
- 2024: $16,782.48
- 2025: $4,491.49
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
Program year 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $4,491.49.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Janssen Research & Development, LLC |
Consulting Fee
Cash or cash equivalent
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โ | General | $2,537.50 |
| Janssen Research & Development, LLC |
Consulting Fee
Cash or cash equivalent
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โ | General | $1,012.50 |
| Fennec Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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Fyarro | General | $388.56 |
| Becton, Dickinson and Company |
Food and Beverage
In-kind items and services
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ARISTA | General | $213.63 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
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ERLEADA | General | $153.46 |
| FEMSelect Inc. |
Food and Beverage
Cash or cash equivalent
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ENPLACE | General | $103.89 |
| Janssen Research & Development, LLC |
Food and Beverage
In-kind items and services
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โ | General | $46.89 |
| AstraZeneca Pharmaceuticals LP |
Education
In-kind items and services
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IMFINZI | General | $35.06 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 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, 2017โ2024; 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 |
|---|---|---|---|---|
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52000
Diagnostic exam of bladder and urethra using an endoscope
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262 | 165 | $1096.73 | $270.53 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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199 | 175 | $554.93 | $138.03 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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176 | 157 | $392.26 | $98.41 |
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99443
Telephone medical discussion with physician, 21-30 minutes
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149 | 124 | $554.44 | $138.91 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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59 | 59 | $776.00 | $179.62 |
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99205
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
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50 | 50 | $921.54 | $190.31 |
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52235
Destruction and/or removal of growth of bladder and urethra using an endoscope, 2.0-5.0 cm
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35 | 35 | $2450.50 | $293.07 |
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99205
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
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27 | 27 | $972.22 | $221.64 |
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74420
Imaging of urinary tract following injection of a contrast agent
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26 | 17 | $96.81 | $25.33 |
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51798
Ultrasound measurement of bladder capacity after voiding
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25 | 23 | $164.60 | $13.14 |
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55700
Biopsy of prostate gland
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21 | 21 | $982.43 | $205.84 |
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76872
Ultrasound scan of pelvic region through rectum
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20 | 20 | $612.80 | $108.21 |
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51741
Electronic assessment of bladder emptying
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18 | 18 | $430.00 | $14.31 |
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51595
Removal of bladder and lymph nodes on both sides of pelvis with transplantation of ureters to small or large bowel with creation of urinary opening
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17 | 17 | $11283.62 | $2364.00 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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16 | 16 | $770.63 | $183.76 |
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52005
Insertion of tube into ureter using an endoscope through bladder area
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14 | 14 | $817.00 | $132.97 |
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55840
Removal of prostate
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13 | 13 | $4924.23 | $613.89 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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13 | 13 | $762.00 | $151.78 |
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99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
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12 | 12 | $545.00 | $136.48 |
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.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Tamsulosin Hcl | Tamsulosin Hcl | 90 | 6,643 | $1,303.18 | 41 |
| Finasteride | Finasteride | 41 | 3,318 | $688.13 | 12 |
| Myrbetriq | Mirabegron | 20 | 570 | $11,826.29 | โ |
| Trospium Chloride Er | Trospium Chloride | 14 | 840 | $2,665.65 | 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: 2026-07-27NUCC Taxonomy Code: 208800000X
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - UROLOGY
I20120114000042
MA
4486821402
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
Dana-Farber Cancer Institute, Inc.
450 Brookline Ave, Boston, MA 022155418
Phone: 6176323586
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Orthopaedic Surgery - Hand Surgery
Doctor of Medicine (M.D.)
Pathology - Anatomic Pathology
MDPHD
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.), Master of Business Administration
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 75 FRANCIS ST, BOSTON, MA 021156106 (Tel: 6177325500)
Registered at 75 FRANCIS ST, BOSTON, MA 021156106 (Tel: 6177325500)
NPI status registered as active in NPPES database
Registered at 36 HANCOCK ST, APT 5B, BOSTON, MA 021144117 (Tel: 6176507798)
Registered at 36 HANCOCK ST, APT 5B, BOSTON, MA 021144117 (Tel: 6176507798)
Recorded as MARK PRESTON, M.D.
Urology (license number reported to NPPES: MA 247103)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Urology Specialists in Boston
- Dr. Michal Ursiny, MD
- Dr. Toby Chai, MD
- Dr. Andrew Wagner, MD
- Dr. Bartley Cilento, MD
- Dr. Ricardo Munarriz, MD
- Dr. Anton Wintner, MD
Mailing Address
75 Francis St
Boston, MA 021156106
Phone: 6177325500