# Mark Tan, MD

Source: https://ourhealthnetwork.com/doctor/mark-tan-md-1083770580
NPI: 1083770580
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

Mark Tan, MD is a rheumatology based in Smithtown, NY with NPI 1083770580 and offers telehealth visits.

## Profile

- Primary specialty: Rheumatology
- Secondary specialties: INTERNAL MEDICINE
- Credential: MD
- Gender: Male
- Medical school: STATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE
- Graduation year: 1983
- Telehealth: Yes
- NPI: 1083770580 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1083770580))

## Practice and contact

- Address: 222 E Middle Country Rd, Suite 312, Smithtown, NY, 117872814
- Phone: (631) 724-8900

## CMS quality measures (MIPS)

- Overall MIPS final score: 0.00/100
- Quality category score: 0.00/100
- Improvement Activities score: 0.00/100

Source: CMS Quality Payment Program. MIPS scores reflect Medicare provider performance on quality, cost, and care improvement measures.

## Insurance accepted (5 networks)

This provider is in network with the following insurance carriers, based on federal Transparency in Coverage filings and FHIR provider directories:

- [Cigna](https://ourhealthnetwork.com/insurance/cigna) — 11 plans
- [Humana](https://ourhealthnetwork.com/insurance/humana) — 7 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 6 plans
- [Oxford Health Plans (UHC)](https://ourhealthnetwork.com/insurance/oxford-health-plans-uhc) — 2 plans
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan

To verify a specific plan covers Mark Tan, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1083770580).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 138 disclosed payments from medical industry sources totaling approximately $2,954.

Largest disclosed payer: Janssen Biotech, Inc. ($678 cumulative).

Source: CMS Open Payments program (federal financial-transparency dataset). Industry payment disclosures do not imply any wrongdoing; many are legitimate consulting fees, research support, or speaker honoraria.

## Related on OurHealthNetwork

- [More Rheumatology doctors in SMITHTOWN, NY](https://ourhealthnetwork.com/rheumatology/ny/smithtown)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1083770580)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)