Medicare Enrolled
Dr. Shamai Grossman, MD
Emergency Medicine · Boston, MA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
High
DATA COVERAGE
Data in 3 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Grossman from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Grossman
Dr. Shamai Grossman is an emergency medicine specialist in Boston, MA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Grossman performed 2,794 Medicare services in 2023. These records do not provide a deduplicated patient total.
The Data Coverage level for Dr. Grossman is High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 20 years of NPI registration
▲ Top 1% volume in MA
Medicare Practice Summary — 2023
Medicare Utilization ↗2,794
Medicare services
Top 1% in MA for emergency medicine
Not available
Unique patients (not deduplicated)
$44
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
1,310 | $0 | $1 |
| Emergency department visit, high complexity An emergency department visit involving a high level of medical decision making. |
450 | $152 | $537 |
| EKG interpretation and report A standard electrocardiogram test that records the heart's electrical activity using at least 12 leads. The service includes a professional interpretation of the results and a written report. |
265 | $7 | $25 |
| Emergency department visit, moderate complexity An emergency department visit for an established or new patient involving a moderate level of medical decision making. |
162 | $95 | $378 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
105 | $110 | $227 |
| Critical care, first 30-74 min Emergency medical care for a critically ill or injured patient lasting between 30 and 74 minutes. This service involves direct patient care and medical decision making to stabilize the patient. |
37 | $187 | $795 |
| Emergency department visit, low level of medical decision making An emergency department visit for a patient requiring a low level of medical decision making. |
34 | $53 | $251 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
33 | $65 | $171 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
32 | $161 | $615 |
| Chest X-ray, 2 views An X-ray imaging test of the chest that captures two different angles to visualize the lungs, heart, and chest wall. |
31 | $22 | $282 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
30 | $8 | $74 |
| Electrolyte blood test panel A blood test that measures the levels of sodium, potassium, chloride, and carbon dioxide to evaluate electrolyte balance. |
29 | $7 | $181 |
| Blood creatinine level test A blood test that measures the amount of creatinine, a waste product from muscle wear and tear, to help assess kidney function. |
29 | $5 | $49 |
| Blood urea nitrogen test A blood test that measures the amount of urea nitrogen to assess kidney function. |
29 | $4 | $39 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
25 | $8 | $19 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
23 | $69 | $218 |
| Urinalysis with microscopic exam A urine test performed manually that includes examining the sample under a microscope to check for abnormalities. |
18 | $3 | $30 |
| Hospital discharge day management, 30 minutes or less This service covers the final day of hospital care when the patient is being discharged. It includes coordination of care and instructions for the patient within a time frame of 30 minutes or less. |
17 | $72 | $236 |
| CT scan of abdomen and pelvis with contrast A CT scan that uses dye to create detailed images of the abdomen and pelvis. This imaging test helps doctors examine internal organs and structures in these areas. |
14 | $214 | $1,880 |
| Albumin level test A blood test that measures the amount of albumin, a protein made by the liver, in your body. |
14 | $5 | $48 |
| Total bilirubin level test A blood test that measures the total amount of bilirubin, a waste product from the breakdown of red blood cells, in your body. |
14 | $5 | $48 |
| Alkaline phosphatase level test A blood test that measures the level of alkaline phosphatase, an enzyme found in the liver and bones. |
14 | $5 | $50 |
| Liver enzyme (SGOT) level test A blood test that measures the level of the liver enzyme SGOT to help assess liver health. |
14 | $5 | $50 |
| Liver enzyme (SGPT) level test A blood test that measures the level of the liver enzyme SGPT to assess liver function. |
14 | $5 | $51 |
| COVID-19 amplified DNA/RNA probe detection A laboratory test that uses amplified DNA or RNA probes to detect the presence of severe acute respiratory syndrome coronavirus 2 (COVID-19) antigen. |
14 | $50 | $58 |
| Strep A rapid test A rapid test to detect Group A Streptococcus bacteria using an immunoassay method with direct visual observation. |
13 | $16 | $113 |
| Lipase level test A blood test that measures the amount of lipase, a fat-digesting enzyme, in your body. |
12 | $7 | $77 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
12 | $101 | $312 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. These counts do not measure clinical quality or years of experience.
Geographic Context
Emergency medicines in nearby ZIP areas
956
County median income
$92,859
Nearest hospital to ZIP centroid (approximate)
BETH ISRAEL DEACONESS MEDICAL CENTER
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | — No payments | N/A |
| Disciplinary History | — Not included | N/A |
This provider has data in 3 of 4 available federal datasets, with a Data Coverage level of High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Grossman is a mixed practice specialist, with above-average Medicare volume (top 1% in MA), with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Grossman experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Grossman performed 1,310 contrast dye for imaging (iodine-based) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
How do Dr. Grossman's costs compare to other emergency medicines in Boston?
Dr. Grossman's average Medicare payment per service is $44. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently High for Dr. Grossman) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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