Suzanne L. Chapnick, M.D.
Rheumatology Physician · Cambridge, MA
Suzanne L. Chapnick, M.D. is a rheumatology physician with a practice address in Cambridge, Massachusetts, and NPI 1609912245, issued on Jan 30, 2007. Check the license (Massachusetts 229240, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Suzanne L. Chapnick
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 229240 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1493 Cambridge St, Cambridge, MA 02139
- Phone
- (617) 665-1566
- Enumerated
- Jan 30, 2007
- Record last updated
- Feb 28, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20081010000041); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 343 in Massachusetts → Look up another NPI →
Also registered at 1493 Cambridge St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Omar Abbas, MDStudent in an Organized Health Care Education/Training Program1225728025
- Nawyaab Abbasi, DOStudent in an Organized Health Care Education/Training Program1215875364
- Flannery AbbeySocial Worker1508604273
- Rana AbdallahSocial Worker1689220204
- Khaleel Abdul-Jabbaar, PT, DPTOrthopedic Physical Therapist1780295717
- Adri Abou-Bakr, MDStudent in an Organized Health Care Education/Training Program1770421844
Verify Suzanne L. Chapnick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 229240Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,946 Medicare Part D claims for 247 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Hydroxychloroquine Sulfate241 claims
- Methotrexate187 claims
- Prednisone151 claims
- Diclofenac Sodium83 claims
- Leflunomide76 claims
- Allopurinol71 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $201.42
3 payments; by number, the most common kind was education; the largest payer was Sanofi-Aventis U.S. LLC. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Cambridge Public Health CommissionCambridge, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Suzanne L. Chapnick among 343 rheumatology physician records in Massachusetts
Suzanne L. Chapnick, M.D. is one of 343 rheumatology physician records with a practice address in Massachusetts. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 55% of them.
- NPI issued2007 · 55% of these records are older, 38% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2003 · median 2004 among the 212 with a school on file
- Record last updated2012 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Massachusetts
There are 343 rheumatology physician records in Massachusetts.
All 343 in Massachusetts → Every provider in Cambridge → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Irving Fox, M.D.Cambridge, MA 021391144335035
- Jan Hillson, M.D.Cambridge, MA 021391912930157
- Lloyd Klickstein, MD, PHDCambridge, MA 021391467423418
- Paul RomainCambridge, MA 021391114086360
- George Spencer-Green, MDCambridge, MA 021391669608378
- Claire Stampfer, MDCambridge, MA 021391053485094
- Lisa Fitzgerald, MDCambridge, MA 021381881691160
- Jonathan Hausmann, MDCambridge, MA 021381932367562
Common questions
What is Suzanne L. Chapnick, M.D.'s NPI number?
Suzanne L. Chapnick, M.D.'s National Provider Identifier (NPI) is 1609912245, issued on Jan 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Suzanne L. Chapnick, M.D. located?
The NPPES record lists a practice address at 1493 Cambridge St, Cambridge, MA, 02139. Phone: (617) 665-1566. Providers update this record themselves, so call before visiting.
How can I verify Suzanne L. Chapnick, M.D.'s license?
NPPES lists Massachusetts license number 229240, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Suzanne L. Chapnick, M.D. prescribe under Medicare Part D?
In 2024, Suzanne L. Chapnick, M.D. had 1,946 Medicare Part D claims for 247 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Suzanne L. Chapnick, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.