Tiffany Hsu, M.D., PH.D.
NPI 1487180485 · Rheumatology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tiffany Hsu, M.D., PH.D. is a Rheumatology Physician provider in Boston, MA (NPI 1487180485).
Provider details
- NPI number
- 1487180485
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 1014954 (MA)
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 tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
13 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 13 | $137 |
Typical Medicare-allowed amounts for these services range $137–$137 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Diclofenac Sodium | 15 |
| Methotrexate Sodiumbrand: Methotrexate | 15 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 60 Fenwood RdBoston, MA 02115-6128Phone: (617) 732-5325Fax: (617) 732-5766
Registry dates
- Enumerated
- 2017-05-11
- Last updated
- 2023-06-29
- Certified
- 2023-06-29
Frequently asked questions
- What is Tiffany Hsu's NPI number?
- Tiffany Hsu's National Provider Identifier (NPI) is 1487180485, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tiffany Hsu's specialty?
- Tiffany Hsu is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Tiffany Hsu located?
- Tiffany Hsu's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is Tiffany Hsu's phone number?
- The practice phone number listed in the NPPES registry for Tiffany Hsu is (617) 732-5000.
- Does Tiffany Hsu accept Medicare?
- Tiffany Hsu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tiffany Hsu's NPI active?
- Yes — Tiffany Hsu's NPI (1487180485) is active in the NPPES registry as of the last update on 2023-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.