Sara El Gassim
- Medicare services, 2024
- 594
- Medicare patients, 2024
- 424
- Part D claims, 2024
- 99
- Hospital affiliations
- 3
- Industry payments
- $16
- Practice address
- 1 Heros Way, Riverhead, NY 11901
- Practice phone
- Call (631) 548-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Sara El Gassim's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Sara El Gassim is an internist in Riverhead, New York
Sara El Gassim practices at Peconic Bay Medical Center in Riverhead, New York, part of Northwell Health.
Sara El Gassim's NPI, 1508285214, was assigned on April 9, 2014. Sara El Gassim holds New York license 301831.
- NPI
- 1508285214NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395018600
- NPI enumeration date
- April 9, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 548-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Sara El Gassim practices at 2 locations in Riverhead, New York
Sara El Gassim's primary practice is Peconic Bay Medical Center, at 1 Heros Way, Riverhead, NY 11901 in Suffolk County. The practice phone is (631) 548-6000. Sara El Gassim also practices at Peconic Bay Medical Center, 1300 Roanoke Ave, Riverhead, NY 11901.
- Peconic Bay Medical CenterPrimary1 Heros Way, Riverhead, NY 11901 · Suffolk CountyPhone(631) 548-6000
- Peconic Bay Medical Center1300 Roanoke Ave, Riverhead, NY 11901 · Suffolk CountyPhone(631) 548-6000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Sara El Gassim is affiliated with 6 sites of care and 6 medical groups
Sara El Gassim's primary practice is Peconic Bay Medical Center in Riverhead, New York, part of Northwell Health. Sara El Gassim is also affiliated with Stony Brook University Hospital. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Sara El Gassim to 1 more hospital, 5 medical groups and 3 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Sara El Gassim's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Sara El Gassim practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Peconic Bay Medical Center | Available with a free account |
| +5 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Northwell Health and 6.2K+ hospitals, with verified contacts in the same login.
Sara El Gassim is one of 9,643 internists in New York
Internal medicine is Sara El Gassim's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Sara El Gassim's licenses on file in 2 states: New York and Arizona.
Specialties and state licenses
- Internal medicine, New YorkPrimary
- Arizona license
Internists near Sara El Gassim
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Sara El Gassim billed Medicare for 594 services in 2024
CMS data shows 594 Medicare services from Sara El Gassim across 4 procedure codes in 2024, for 424 Medicare patients. Medicare paid $60,261 for them. Every service was in a facility, such as a hospital, rather than an office.
Sara El Gassim's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4282024: 59439%
Sara El Gassim compared with the New York median for internists, 2024
- Sara El Gassim
- New York median
- Medicare services
- 594vs 42639% above
- Medicare patients
- 424vs 1582.7 times
- Part D claims
- 12vs 62298% below
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Sara El Gassim's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Sara El Gassim treated 424 Medicare patients in 2024, average age 78
CMS counts 424 Medicare patients who saw Sara El Gassim in 2024. The largest group is 75 to 84, with 174 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 2.58, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Sara El Gassim's median patient age at 67, with 48% women.
Sara El Gassim's Medicare patients by age, 2024
Sara El Gassim's Medicare patients by sex, 2024
- Women22252%
- Men20248%
Chronic conditions among Sara El Gassim's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis68%
- Ischemic heart disease64%
- Mood disorders49%
- Chronic kidney disease47%
- Diabetes45%
- Heart failure45%
Share of Medicare patients with each condition. A patient can have several.
Sara El Gassim's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Sara El Gassim wrote 99 Medicare Part D claims in 2024
In 2024, Sara El Gassim wrote 99 Medicare Part D claims for 52 patients. 82% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $65 in total drug cost. In 2021, CMS named 14 claims across 1 drug.
Sara El Gassim's Part D claims by kind of drug, 2024
- Generic81 claims82%
- Brand-name18 claims18%
Sara El Gassim's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Sara El Gassim's Part D claims, 2024
- Antibiotics22%22 of 99 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 142022: 1214%
Drugs named by CMS: 1 in 2022, 1 in 2021.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Sara El Gassim takes part in Medicare
Sara El Gassim accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sara El Gassim received $16 in industry payments in 2020
CMS Open Payments shows 1 general payment to Sara El Gassim from 1 drug or device company in 2020. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $16.
Companies that paid Sara El Gassim the most, 2020 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Sara El Gassim's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Sara El Gassim
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Sara El Gassim's NPI number?
Sara El Gassim's NPI number is 1508285214. It was assigned on April 9, 2014, and it is active in the NPI Registry.
What does Sara El Gassim specialize in?
Sara El Gassim is an internist in Riverhead, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Sara El Gassim practice?
Sara El Gassim practices at 1 Heros Way, Riverhead, NY 11901. Sara El Gassim also practices at 1300 Roanoke Ave, Riverhead, NY 11901. Sara El Gassim's primary practice is Peconic Bay Medical Center in Riverhead, New York, part of Northwell Health. Dmand AI also links Sara El Gassim to 1 hospital, 5 medical groups and 3 group practices and clinics.
What is Sara El Gassim's office phone number?
The practice phone on file for Sara El Gassim is (631) 548-6000.
What is Sara El Gassim's medical license number?
Sara El Gassim holds New York license 301831, one of the licenses on file in 2 states.
Which states has Sara El Gassim been licensed in?
Dmand AI has state licenses on file for Sara El Gassim in New York and Arizona.
Which hospitals is Sara El Gassim affiliated with?
Sara El Gassim practices at Peconic Bay Medical Center in Riverhead, New York. Sara El Gassim is also affiliated with Stony Brook University Hospital. Dmand AI links Sara El Gassim to 1 more hospital.
What medical group is Sara El Gassim part of?
Sara El Gassim is linked to Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI links Sara El Gassim to 5 more medical groups.
Does Sara El Gassim accept Medicare?
Yes. CMS data shows Sara El Gassim billed Medicare for 594 services in 2024, and Sara El Gassim accepts Medicare assignment.
How many Medicare patients does Sara El Gassim see?
CMS counts 424 Medicare patients who saw Sara El Gassim in 2024, with an average age of 78.
Show 4 more questionsShow fewer questions
What services does Sara El Gassim bill to Medicare?
In 2024, Sara El Gassim's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99223) and hospital inpatient care (99239).
What drugs does Sara El Gassim prescribe most?
In 2022 Medicare Part D data, Sara El Gassim's most prescribed drugs by claims were Metoprolol Tartrate.
Has Sara El Gassim received payments from drug or device companies?
CMS Open Payments shows $16 in general payments to Sara El Gassim from 1 company from 2020 to 2020. The largest total came from Boston Scientific Corporation.
How long has Sara El Gassim been practicing?
Sara El Gassim graduated from medical school in 2009, 17 years ago.
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