Deborah Tan, DO
NPI 1407435670 · Internal Medicine Physician · Southampton, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Deborah Tan, DO is a Internal Medicine Physician provider in Southampton, NY (NPI 1407435670).
Provider details
- NPI number
- 1407435670
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Student Health Clinic/Center261QS1000X
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
5 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
45 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 32 | $134 |
| Initial Hospital Care With Same-Day Admission and Discharge With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 70 Minutes99235 | 13 | $163 |
Typical Medicare-allowed amounts for these services range $134–$163 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$492 across 4 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 (2)
- 326 Washington StNorwich, CT 06360-2740Phone: (860) 889-8331
- 112 Mansfield AveWillimantic, CT 06226-2045Phone: (860) 456-9116
Registry dates
- Enumerated
- 2021-04-05
- Last updated
- 2024-08-14
- Certified
- 2024-08-14
Frequently asked questions
- What is Deborah Tan's NPI number?
- Deborah Tan's National Provider Identifier (NPI) is 1407435670, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deborah Tan's specialty?
- Deborah Tan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Deborah Tan located?
- Deborah Tan's practice location on file with NPPES is 240 Meeting House Ln, Southampton, NY 11968-5009.
- What is Deborah Tan's phone number?
- The practice phone number listed in the NPPES registry for Deborah Tan is (631) 726-8200.
- Does Deborah Tan accept Medicare?
- Deborah Tan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Deborah Tan's NPI active?
- Yes — Deborah Tan's NPI (1407435670) is active in the NPPES registry as of the last update on 2024-08-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.