Dr. Saif A. Alenizi, MD, MPH
- Medicare services, 2024
- 1,081
- Medicare patients, 2024
- 294
- Part D claims, 2024
- 421
- Hospital affiliations
- 5
- Industry payments
- $18,745
- Practice address
- 75 Francis Street, Boston, MA 02115
- Practice phone
- Call (617) 732-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Alenizi'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.
Dr. Saif A. Alenizi is a nephrologist in Boston, Massachusetts
Dr. Alenizi practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Alenizi's NPI, 1255680997, was assigned on September 7, 2012. Dr. Alenizi holds Massachusetts license 279721.
- NPI
- 1255680997NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264725688
- NPI enumeration date
- September 7, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 732-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Saif A. Alenizi practices at Brigham and Women's Hospital in Boston, Massachusetts
Dr. Alenizi's primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.
- Brigham and Women's Hospital75 Francis Street, Boston, MA 02115 · Suffolk CountyPhone(617) 732-5500
Source: Dmand AI Affiliation Data
Dr. Saif A. Alenizi is affiliated with 8 sites of care and 4 medical groups
Dr. Alenizi's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Alenizi is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is Brigham and Women's Hospital. Dmand AI also links Dr. Alenizi to 3 more hospitals, 3 medical groups, 2 group practices and clinics and 1 hospital outpatient department, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Saif A. Alenizi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Alenizi practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brigham and Women's Hospital | Available with a free account |
| +7 more sites and 3 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 Mass General Brigham and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Saif A. Alenizi is one of 351 nephrologists in Massachusetts
Nephrology is Dr. Alenizi's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Alenizi is licensed in Massachusetts.
Specialties and state licenses
- Nephrology, MassachusettsPrimary
Nephrologists near Dr. Alenizi
Counts of nephrologists 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
Dr. Saif A. Alenizi billed Medicare for 1,081 services in 2024
CMS data shows 1,081 Medicare services from Dr. Alenizi across 8 procedure codes in 2024, for 294 Medicare patients. Medicare paid $103,423 for them.
Dr. Alenizi's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,2802024: 1,00422%
- Tests and treatments
- 2023: 1492024: 5762%
- Other services
- 2023: 02024: 20
Where Dr. Alenizi's Medicare services took place, 2024
- In an office202%
- In a facility1,06198%
Dr. Alenizi compared with the Massachusetts median for nephrologists, 2024
- Dr. Alenizi
- Massachusetts median
- Medicare services
- 1,081vs 70154% above
- Medicare patients
- 294vs 282Close to median
- Part D claims
- 285vs 47139% below
Medians across 333 nephrologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Alenizi'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.
Need commercial claims for Dr. Alenizi?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Alenizi and other nephrologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Saif A. Alenizi treated 294 Medicare patients in 2024, average age 70
CMS counts 294 Medicare patients who saw Dr. Alenizi in 2024. The largest group is 65 to 74, with 111 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 33% are also on Medicaid. Their average risk score is 4.47, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Alenizi's median patient age at 72, with 66% women.
Dr. Alenizi's Medicare patients by age, 2024
Dr. Alenizi's Medicare patients by sex, 2024
- Women13646%
- Men15854%
Chronic conditions among Dr. Alenizi's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease55%
- Heart failure54%
- Diabetes51%
- Atrial fibrillation49%
- Arthritis47%
Share of Medicare patients with each condition. A patient can have several.
Dr. Alenizi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women66%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Saif A. Alenizi wrote 421 Medicare Part D claims in 2024
In 2024, Dr. Alenizi wrote 421 Medicare Part D claims for 55 patients. 87% of them were for generic drugs. CMS names the drug for 285 of them, across 14 drugs with 11 or more claims each, at $67,932 in total drug cost. In 2023, CMS named 290 claims across 16 drugs.
Dr. Alenizi's Part D claims by kind of drug, 2024
- Generic367 claims87%
- Brand-name54 claims13%
Dr. Alenizi's most prescribed drugs by claims, 2024
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 Dr. Alenizi's Part D claims, 2024
- Antibiotics5%21 of 421 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2902024: 2852%
Drugs named by CMS: 14 in 2024, 16 in 2023.
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
Dr. Saif A. Alenizi offers telehealth to Medicare patients
Dr. Alenizi accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Alenizi as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- 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.
Dr. Saif A. Alenizi received $18,745 in industry payments from 2022 to 2025
CMS Open Payments shows 26 general payments to Dr. Alenizi from 4 drug and device companies from 2022 to 2025. Consulting fees make up the largest share, 81% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $10,601.
General payments to Dr. Alenizi by program year, 2022 to 2025
General payments to Dr. Alenizi by kind, 2022 to 2025
- Consulting fees$15,23281%
- Honoraria$2,25012%
- Travel and lodging$9275%
- Food and beverage$2421%
- Education$941%
Companies that paid Dr. Alenizi the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Saif A. Alenizi'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 | Dmand AI Affiliation 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 Dr. Saif A. Alenizi
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Saif A. Alenizi's NPI number?
Dr. Saif A. Alenizi's NPI number is 1255680997. It was assigned on September 7, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Saif A. Alenizi?
Dr. Saif A. Alenizi is a nephrologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Saif A. Alenizi practice?
Dr. Alenizi practices at 75 Francis Street, Boston, MA 02115. Dr. Alenizi's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Alenizi to 3 hospitals, 3 medical groups, 2 group practices and clinics and 1 hospital outpatient department.
What is Dr. Saif A. Alenizi's office phone number?
The practice phone on file for Dr. Alenizi is (617) 732-5500.
What is Dr. Saif A. Alenizi's medical license number?
Dr. Alenizi holds Massachusetts license 279721.
Which hospitals is Dr. Saif A. Alenizi affiliated with?
Dr. Alenizi practices at Brigham and Women's Hospital in Boston, Massachusetts. Dr. Alenizi is also affiliated with UMass Memorial Medical Center - University Campus. Dmand AI links Dr. Alenizi to 3 more hospitals.
What medical group is Dr. Saif A. Alenizi part of?
Dr. Alenizi is linked to Brigham and Women's Hospital. Dmand AI links Dr. Alenizi to 3 more medical groups.
Does Dr. Saif A. Alenizi accept Medicare?
Yes. CMS data shows Dr. Alenizi billed Medicare for 1,081 services in 2024, and Dr. Alenizi accepts Medicare assignment.
Does Dr. Saif A. Alenizi offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Alenizi as offering telehealth services.
How many Medicare patients does Dr. Saif A. Alenizi see?
CMS counts 294 Medicare patients who saw Dr. Alenizi in 2024, with an average age of 70.
Show 4 more questionsShow fewer questions
What services does Dr. Saif A. Alenizi bill to Medicare?
In 2024, Dr. Alenizi's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and office visit, established patient (99215).
What drugs does Dr. Saif A. Alenizi prescribe most?
In 2024 Medicare Part D data, Dr. Alenizi's most prescribed drugs by claims were Prednisone, Losartan Potassium and Atovaquone.
Has Dr. Saif A. Alenizi received payments from drug or device companies?
CMS Open Payments shows $18,745 in general payments to Dr. Alenizi from 4 companies from 2022 to 2025. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Saif A. Alenizi been practicing?
Dr. Alenizi graduated from medical school in 2006, 20 years ago.
Selling to nephrology practices?
See nephrologists in Massachusetts by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card