Nancy Liu, M.D.
NPI 1265416531 · Rheumatology Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Liu, M.D. is a Rheumatology Physician provider in Worcester, MA (NPI 1265416531).
Provider details
- NPI number
- 1265416531
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 52835 (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
346 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 154 | $98 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 85 | $65 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 38 | $16 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 22 | $127 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 19 | $145 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 129 | 39 |
| Celecoxib | 126 | 31 |
| Prednisone | 116 | 33 |
| Hydroxychloroquine Sulfate | 97 | 30 |
| Tramadol Hcl | 87 | 12 |
| Tofacitinib Citratebrand: Xeljanz | 55 | — |
| Etanerceptbrand: Enbrel Sureclick |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-01
- Last updated
- 2020-10-30
- Certified
- 2020-10-30
Frequently asked questions
- What is Nancy Liu's NPI number?
- Nancy Liu's National Provider Identifier (NPI) is 1265416531, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Liu's specialty?
- Nancy Liu is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Nancy Liu located?
- Nancy Liu's practice location on file with NPPES is 119 Belmont St, Worcester, MA 01605-2903.
- What is Nancy Liu's phone number?
- The practice phone number listed in the NPPES registry for Nancy Liu is (508) 334-5224.
- Does Nancy Liu accept Medicare?
- Nancy Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Liu's NPI active?
- Yes — Nancy Liu's NPI (1265416531) is active in the NPPES registry as of the last update on 2020-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.