Francine Ton Nghiem, MD
NPI 1902862451 · Rheumatology Physician · Cambridge, MA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Francine Ton Nghiem, MD is a Rheumatology Physician provider in Cambridge, MA (NPI 1902862451).
Provider details
- NPI number
- 1902862451
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 159803 (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
419 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) |
|---|---|---|
| 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 | 98 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 88 | $102 |
| 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 | 71 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 60 | $113 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 186 | 33 |
| Prednisone | 90 | 21 |
| Hydroxychloroquine Sulfate | 59 | 11 |
| Allopurinol | 54 | 15 |
| Diclofenac Sodium | 52 | 11 |
| Azathioprine | 51 | 11 |
| Etanerceptbrand: Enbrel Sureclick | 51 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Francine Ton Nghiem's NPI number?
- Francine Ton Nghiem's National Provider Identifier (NPI) is 1902862451, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Francine Ton Nghiem's specialty?
- Francine Ton Nghiem is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Francine Ton Nghiem located?
- Francine Ton Nghiem's practice location on file with NPPES is 300 Mount Auburn St, Cambridge, MA 02138-5600.
- What is Francine Ton Nghiem's phone number?
- The practice phone number listed in the NPPES registry for Francine Ton Nghiem is (617) 868-2650.
- Does Francine Ton Nghiem accept Medicare?
- Francine Ton Nghiem is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Francine Ton Nghiem's NPI active?
- Yes — Francine Ton Nghiem's NPI (1902862451) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.