Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Deborah Tan, DO

Individual provider Student Health Clinic/Center · NPI 1407435670

Deborah Tan, DO practises Internal Medicine in Southampton, New York. Graduated from Lake Erie College of Osteopathic Medicine, Erie in 2021, 5 years ago. Practices with The William W Backus Hospital, a 247-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
5
Trained at
Lake Erie College of Osteopathic Medicine, Erie
Licensed in
CT
In the registry since
2021
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

240 Meeting House Ln
Southampton, NY 11968-5009
Phone: (631) 726-8200
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 326 Washington St, Norwich, CT 06360-2740 — (860) 889-8331
  • 112 Mansfield Ave, Willimantic, CT 06226-2045 — (860) 456-9116

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 79114 (CT)
Student Health Clinic/Center Taxonomy 261QS1000X

Record details

NPI number1407435670
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorYes
NPI enumeratedApril 5, 2021
Last updated in NPPESAugust 14, 2024
Certification dateAugust 14, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolLAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
Graduated 2021 (5 years in practice)
Group practice The William W Backus Hospital — 247 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients45
Services billed 45 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at The William W Backus Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 247 clinicians in the practice; 12 are shown here.