Alan Synn, M.D.
NPI 1912984386 · Vascular Surgery Physician · Denver, CO
Provider details
- NPI number
- 1912984386
- Entity type
- Individual
- Primary specialty
- Vascular Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 34425 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
705 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) |
|---|---|---|
| Ultrasound Study of Arm and Leg Arteries93922 | 89 | $66 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 66 | $91 |
| Ultrasound of One Leg Arteries Or Artery Grafts93926 | 65 | $129 |
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 65 | $188 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 61 | $167 |
| Complete Ultrasound of Aorta, Vena Cava, Groin Vessels Or Bypass Grafts93978 | 59 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,564 across 23 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
Additional practice locations (1)
- 7805 W 38th AveWheat Ridge, CO 80033-6109Phone: (303) 539-0736Fax: (303) 539-0737
Registry dates
- Enumerated
- 2005-12-28
- Last updated
- 2022-07-14
- Certified
- 2022-07-14
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.