Nicholas Tan, MD
NPI 1720729023 · Diagnostic Radiology Physician · Madison, WI
Enrolled with Medicare as Order and Referring Only - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Tan, MD is a Diagnostic Radiology Physician provider in Madison, WI (NPI 1720729023).
Provider details
- NPI number
- 1720729023
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
4 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 across 1 record (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
- 2022-04-02
- Last updated
- 2023-06-09
- Certified
- 2023-06-09
Frequently asked questions
- What is Nicholas Tan's NPI number?
- Nicholas Tan's National Provider Identifier (NPI) is 1720729023, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Tan's specialty?
- Nicholas Tan is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Nicholas Tan located?
- Nicholas Tan's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792-4409.
- What is Nicholas Tan's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Tan is (608) 263-8310.
- Does Nicholas Tan accept Medicare?
- Nicholas Tan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Tan's NPI active?
- Yes — Nicholas Tan's NPI (1720729023) is active in the NPPES registry as of the last update on 2023-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.