Charles J. Siegert, M.D.
Surgery Physician · Brookline, MA
Charles J. Siegert, M.D. is a surgery physician with a practice address in Brookline, Massachusetts, and NPI 1811163207, issued on May 5, 2008. Check the license on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Charles J. Siegert
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 0101248125 VA
Self-reported in NPPES; status is on the state search - Practice location
- 50 Park St Apt 35, Brookline, MA 02446
- Phone
- (617) 935-3532
- Enumerated
- May 5, 2008
- Record last updated
- Oct 20, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170509002917); accepts Medicare assignment
- Medical or professional school
- Emory University School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 1,003 in Massachusetts → Look up another NPI →
Also registered at 50 Park St Apt 35
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Linda StonePediatric Nurse Practitioner1750984456
Verify Charles J. Siegert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average surgery physician in 2024
315 Medicare Part D claims for 98 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 101 claims were for opioids.
Most prescribed
- Tramadol Hcl73 claims
- Ibuprofen30 claims
- Oxycodone Hcl23 claims
- Pantoprazole Sodium17 claims
- Metronidazole16 claims
- Gabapentin15 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 MIPS final score for 2023 (Medicare payment program): 16.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $349.64
10 payments; by number, the most common kind was food and beverage; the largest payer was Integra LifeSciences Corporation. The 17,103 providers of this specialty with any payment received $3,513.80 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 2 group practices
- Cape Cod Surgeons PCFalmouth, MA
- Medical Affiliates OF Cape Cod IncHyannis, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles J. Siegert among 1,003 surgery physician records in Massachusetts
Charles J. Siegert, M.D. is one of 1,003 surgery physician records with a practice address in Massachusetts. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 46% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2005 · median 2003 among the 503 with a school on file
- Record last updated2011 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Massachusetts
There are 1,003 surgery physician records in Massachusetts.
All 1,003 in Massachusetts → Every provider in Brookline → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Dana Fugelso, M.D.Brookline, MA 024461518925585
- Haytham Kaafarani, M.D., M.P.H.Brookline, MA 024461750570784
- Peter Mowschenson, MDBrookline, MA 024461871671040
- Kelley Zwicker, MSC, MD, FRCPCBrookline, MA 024461023358835
- Mamuka GventsadzeBrookline, MA 024451841003589
- Christeen Osborn, M.D.Brookline, MA 024451174787659
- Carly Rose, PA-CBrookline, MA 024451194204701
- Ahmed Sadek, MDBrookline, MA 024451588224232
Common questions
What is Charles J. Siegert, M.D.'s NPI number?
Charles J. Siegert, M.D.'s National Provider Identifier (NPI) is 1811163207, issued on May 5, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Charles J. Siegert, M.D. located?
The NPPES record lists a practice address at 50 Park St Apt 35, Brookline, MA, 02446. Phone: (617) 935-3532. Providers update this record themselves, so call before visiting.
How can I verify Charles J. Siegert, M.D.'s license?
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 Charles J. Siegert, M.D. prescribe under Medicare Part D?
In 2024, Charles J. Siegert, M.D. had 315 Medicare Part D claims for 98 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Charles J. Siegert, M.D.'s MIPS final score?
The 2023 MIPS final score is 16.8 of 100. 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.