Suzanne Chapnick, M.D.
NPI 1609912245 · Rheumatology Physician · Cambridge, MA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Suzanne Chapnick, M.D. is a Rheumatology Physician provider in Cambridge, MA (NPI 1609912245).
Provider details
- NPI number
- 1609912245
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 229240 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
301 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 173 | $104 |
| 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 | 39 | $18 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 25 | $59 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 23 | $155 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 16 | $133 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 241 | 70 |
| Methotrexate Sodiumbrand: Methotrexate | 187 | 44 |
| Prednisone | 151 | 44 |
| Diclofenac Sodium | 83 | 32 |
| Leflunomide | 76 | 13 |
| Allopurinol | 71 | 14 |
| Alendronate Sodium | 65 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$201 across 3 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
Registry dates
- Enumerated
- 2007-01-30
- Last updated
- 2012-02-28
Frequently asked questions
- What is Suzanne Chapnick's NPI number?
- Suzanne Chapnick's National Provider Identifier (NPI) is 1609912245, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Suzanne Chapnick's specialty?
- Suzanne Chapnick is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Suzanne Chapnick located?
- Suzanne Chapnick's practice location on file with NPPES is 1493 Cambridge St, Cambridge, MA 02139-1047.
- What is Suzanne Chapnick's phone number?
- The practice phone number listed in the NPPES registry for Suzanne Chapnick is (617) 665-1566.
- Does Suzanne Chapnick accept Medicare?
- Suzanne Chapnick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Suzanne Chapnick's NPI active?
- Yes — Suzanne Chapnick's NPI (1609912245) is active in the NPPES registry as of the last update on 2012-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.