Debbie-Ann Tan, M.D.
NPI 1265498851 · Internal Medicine Physician · Fall River, MA
Debbie-Ann Tan, M.D. is a Internal Medicine Physician provider in Fall River, MA (NPI 1265498851).
Provider details
- NPI number
- 1265498851
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 81849 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,786 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 246 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 231 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 214 | $13 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 170 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 146 | $130 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 140 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 176 | 75 |
| Levothyroxine Sodium | 113 | 46 |
| Lisinopril | 107 | 47 |
| Simvastatin | 104 | 45 |
| Omeprazole | 82 | 39 |
| Losartan Potassium | 73 | 31 |
| Amlodipine Besylate | 70 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-24
- Last updated
- 2012-08-31
Frequently asked questions
- What is Debbie-Ann Tan's NPI number?
- Debbie-Ann Tan's National Provider Identifier (NPI) is 1265498851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Debbie-Ann Tan's specialty?
- Debbie-Ann Tan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Debbie-Ann Tan located?
- Debbie-Ann Tan's practice location on file with NPPES is 277 Pleasant St, Fall River, MA 02721-3005.
- What is Debbie-Ann Tan's phone number?
- The practice phone number listed in the NPPES registry for Debbie-Ann Tan is (508) 676-3292.
- Is Debbie-Ann Tan's NPI active?
- Yes — Debbie-Ann Tan's NPI (1265498851) is active in the NPPES registry as of the last update on 2012-08-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.