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Expert Information

Currently engaged in clinical practice: Yes

Degree: M.D.

Specialty / Subspecialty:

  • Internal Medicine  -  Hematology
  • Internal Medicine  -  Medical Oncology

Area of Expertise: All cancers, All blood disorders

Year of Medical Training Completion: 2018

City of Practice: SLEEPY HOLLOW

State of Practice: New York

Previous Experience As Expert Witness: Yes

Type of Practice: Academic

  • Deposition(s) Given For the Defendant: 6
  • Deposition(s) Given For the Plaintiff: 4
  • Testified in a Trial For the Defendent:
  • Testified in a Trial For the Plaintiff:

Available to Review Cases: Yes, for either the defendant or the plaintiff

Available to Be Deposed: Yes, for either the defendant or the plaintiff

Available to Testify In Trial: Yes, for either the defendant or the plaintiff

Training and Additional Credentials

Medical School: -

Year of Completion: -

Residency: -

Year of Completion: -

Fellowship: -

Year of Completion: -

Academic / Leadership Information

Highest Academic/Leadership Position Achieved: -

Current Academic Affiliation: -

Distinguishing Achievements

Awards: -

Number of Publications on PubMed: -

Professional Organizations: -

Fee Schedule

Medical Record Review:

Review of Medical Records, Review of Additional Materials, additional office consultation

  • $800
  • $500

Independent Medical Examination:

Independent Medical Examination with written report

  • Per Hour: -

Deposition in office:

Deposition: Discovery/Evidence

  • First two hours: -
  • For each Additional hour or any portion thereof: -
  • Retainer (due 14 days prior to scheduled disposition): -
  • Cancellation fee (less than 7 days notice): -

Trial (InState):

  • Initial day: -
  • Cancellation fee (less than 72 hours notice): -
  • For each additional day: -
  • Cancellation fee (less than 72 hours notice): -
  • Retainer (due 14 days prior to scheduled trial): -

Trial (Out of State):

  • Initial day: -
  • Cancellation fee (less than 72 hours notice): -
  • For each additional day: -
  • Cancellation fee (less than 72 hours notice): -
  • Retainer (due 14 days prior to scheduled trial): -

Case Responses

Triple-negative Breast Cancer (Case #377)

  • Medical Probability: 7 / 10
  • Medical Error Summary: Sometimes there could be tumor heterogeneity so final surgical specimen can have different markers than biopsy. But if Mayo Clinic revealed negative er and the site mentioned 80% er it is an error
  • Causation Probability: 7 / 10
  • Causation Summary: For upfront triple negative breast cancer, treatment would be different as we would add immunotherapy (pembrolizumab)
  • Expert Summary: Worked in the field for 10 years and being an active member in the NAPBC accreditation for 2 centers. Besides I am active involved in weekly breast tumor boards and have give talks
  • Similar Summary: 12-15 cases annually for triple negative breast cancer

Delay in diagnosis of TFE3(+) translocation type non-clear cell renal carcinoma resulting in metastasis and death. Opinion regarding prognosis if identified before metastasis. (Case #383)

  • Medical Probability: 6 / 10
  • Medical Error Summary: Even though the case mentions that the mass was seen during the patients original presentation. per the 2nd opinion note, they mention- "The timeline shows a rapid natural history with growth from th...
  • Causation Probability: 6 / 10
  • Causation Summary: Again, If the mass was originally present and missed by radiologist, it is a medical error. Renal cancers are curable when non metastatic with surgery. If her mass was missed and she became inoper...
  • Expert Summary: I have experience treating RCC in early stage and advanced stage. Besides I am familiar with side effects of the medications and the current/prospective research in the field. Non clear cell kidney ...
  • Similar Summary: I encounter 5-10 new cases a year and have managed multiple cases over the years

44yo F getting serial iron infusions/Venofer for 6 months for IDA, develops bleeding stomach mass. (Case #394)

  • Medical Probability: 6 / 10
  • Medical Error Summary: The patients frequency and amount of iron infusions are more than usual although the details of her heavy menses are not available. Also her family history of cancer is not available which if positi...
  • Causation Probability: 1 / 10
  • Causation Summary: There is no evidence to suggest iron infusions cause stomach cancer.
  • Expert Summary: I am board certified and practicing hematologist and oncologist and see a lot of similar patients with anemia and GI malignancies. I was also a panelist at Young onset colorectal cancer symposium whe...
  • Similar Summary: I do see 15-40 patients with iron deficiency anemia every month and do refer to GI early on if there menses do not explain the degree of iron requirements

Post cervical laminectomy, possible delayed diagnosis of CSF infection (Case #441)

  • Medical Probability: 7 / 10
  • Medical Error Summary: The rising WBC, hypotension, clinical decline would warrant complete evaluation to rule out sepsis as it meets SIRS criteria. And one should always evaluate the surgical site with the history of recen...
  • Causation Probability: 6 / 10
  • Causation Summary: Maybe earlier initiation of ABx would have resulted in lesser duration of hospitalization and avoided meningitis.
  • Expert Summary: Having managed many cases with severe infections in the inpatient and outpatient setting since I work at a center which has robust spine surgery program.
  • Similar Summary: It is variable but generally around 6-10 cases annually. We have a low threshold to scan and identify source of infection.

Stage IV Diffuse Large B-Cell Lymphoma dx with possible different treatment options (Case #443)

  • Medical Probability: 7 / 10
  • Medical Error Summary: This patient clearly had a very aggressive DLBCL and relapse within 3 months of completing treatments shows that. In the past patients with testicular involvement from DLBCL were considered high risk ...
  • Causation Probability: 7 / 10
  • Causation Summary: Again, the delay is starting the treatment could have resulted in adverse outcomes. However, we need to know the reason for the delay and the exact cause of patients death.
  • Expert Summary: I am board certified hematologist and oncologist practicing over 10’years and have managed severe cases of DLBCL. I also get referrals from other oncologists for complex DLBCL for patients to guide...
  • Similar Summary: I see about 20-50 new cases annually

Standard of care for management of immune toxicity during administration of Carbo/Pemfexy/Keytruda. (Case #484)

  • Medical Probability: 5 / 10
  • Medical Error Summary: Need more information about the size of the cancer and lymph node status to stage the cancer and understand why chemo immunotherapy was used. But side effects can happen with treatments and although r...
  • Causation Probability: 4 / 10
  • Causation Summary: As long as there was a clear indication for using chemoimmunotherapy, the use seem appropriate. Besides, the oncologist appropriately reduced tue dose of Carboplatin. The rate of nephropathy from keyt...
  • Expert Summary: Medical oncologist with over 10 years of experience and busy lung cancer practice
  • Similar Summary: I see lung cancer and use above regimen multiple times. Rate of nephropathy is 2-14%. I have seen 5-10 cases over the time.

5 month delay in diagnosis and treatment of invasive ductal carcinoma ER positive greater than 90-100%, PR positive greater than 90%, HER2 Neu-0, Ki-67 30%. (Case #493)

  • Medical Probability: 8 / 10
  • Medical Error Summary: Given that patient had palpable mass in July scan which was not biopsies and presumed to be benign. If in Dec, there was no other finding in the breast, it is likely that the right breast mass metasta...
  • Causation Probability: 7 / 10
  • Causation Summary: If the mass patient felt in July ultimately metastasized to bone, it is likely causation. Only question will be- was there already bone met when she felt a mass in June (which we will never be able to...
  • Expert Summary: Medical oncologist with over 10 years of experience and 50% breast cancer practice
  • Similar Summary: 50% of my practice is breast cancer.

Missed esophageal CA by radiologist on 9/5/24 film. Esophageal CA found during an endoscopy on 6/26/25. Received radiation, chemotherapy and had a radical esophagogastrectomy. (Case #534)

  • Medical Probability: 5 / 10
  • Medical Error Summary: For a lower esophageal or GE junction cancer patients who are surgical candidate, the new standard of care is to do chemotherapy + immunotherapy (Matterhorn trial) for 4 cycles followed by surgery fol...
  • Causation Probability: 5 / 10
  • Causation Summary: Again, the same explanation as before- CT generally doesn’t pick up esophageal cancers unless it is a large mass or associated with lymph node or distant metastases. One can argue that the cancer ...
  • Expert Summary: Medical oncologist with 13 years of experience and managing multiple patients with esophageal and GE junction cancers over the time. I also see patients for second opinion for such cancers
  • Similar Summary: Yes. We typically have multi specialty conference discussion on such patients. We typically see 4-5 patients every month.

Our Fees

Attorneys:

  • Two preliminary opinions on a case: $400
  • Three preliminary opinions on a case: $500
  • Introduction to a physician through our platform: $500
  • Direct introduction to a physician without a case posting: $1000
    • Please reach out to: somer.saour@kalivar.com

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About Us

Kalivar represents a new concept in medical-legal consulting.

Kalivar was founded by two physicians and a lawyer who believe that the medical legal industry deserves an upgrade.

The current state of affairs:

  • Not infrequently doctors are unjustly accused of negligence. At the same time, malpractice victims do not always receive the compensation they deserve.
  • Many doctors are reluctant to serve as an expert witness and do not have time for extensive reviews of medical records. Choosing sides in a dispute between a patient and a peer may be uncomfortable, especially when doctors be deposed or required to provide testimony.
  • The few doctors who serve as expert witnesses often charge high fees to attorneys for an initial opinion. As a result, many attorneys, whether they are representing the plaintiff or the defendant, tend to rely on the opinion of a single expert as the foundation for their case. When that single initial opinion is questionable, significant funds are incurred unnecessarily in legal cases that should never have been initiated, or that instead should have settled immediately.

There is a better way.

We have created an on-line community where doctors can provide anonymous opinions on medical cases, and have the opportunity to be retained as an expert.

Kalivar allows doctors to provide unbiased opinions, as we do not disclose their identity, and we are unaware of whether an opinion is being requested by a defendant or a plaintiff. With only a short event summary to read, busy clinicians can find a few minutes during their day to leave a comment in our social media-like platform (and potentially be compensated for their time!).

Kalivar allows attorneys to obtain diverse opinions from different experts across multiple specialties, for very limited costs. Attorneys will have greater insight into a case before embarking on a long and expensive process that may be unnecessary to begin with.

We hope that you will help us improve the medical-legal industry and join the Kalivar community.

Thank you for your help!

The Kalivar Team: Mark, Paul, Meir

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