William Boysen, MD
NPI 1912346503 · Urology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Boysen, MD is a Urology Physician provider in Boston, MA (NPI 1912346503).
Provider details
- NPI number
- 1912346503
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 125-062892 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
692 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 241 | $98 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 89 | $139 |
| Ultrasound Measurement of Bladder Capacity After Voiding51798 | 78 | $13 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 70 | $179 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 53 | $138 |
| Diagnostic Exam of Bladder and Urethra Using an Endoscope52000 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 240 | 74 |
| Mirabegronbrand: Myrbetriq | 171 | 39 |
| Finasteride | 170 | 54 |
| Methenamine Hippurate | 79 | 19 |
| Trospium Chloride | 61 | 23 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 39 | 16 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,289 across 10 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-06-18
- Last updated
- 2020-10-05
- Certified
- 2020-10-05
Frequently asked questions
- What is William Boysen's NPI number?
- William Boysen's National Provider Identifier (NPI) is 1912346503, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Boysen's specialty?
- William Boysen is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is William Boysen located?
- William Boysen's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6106.
- What is William Boysen's phone number?
- The practice phone number listed in the NPPES registry for William Boysen is (617) 732-5500.
- Does William Boysen accept Medicare?
- William Boysen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Boysen's NPI active?
- Yes — William Boysen's NPI (1912346503) is active in the NPPES registry as of the last update on 2020-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.