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Dr. Ahmed Assif, MD
NPI1679507909PAC ID9638130271
- Medicare services, 2024
- 12
- Medicare patients, 2024
- 65
- Publications
- 1
- Hospital affiliations
- 2
- Industry payments
- $417
- Practice address
- 1100 West Stewart Dr, Orange, CA 92868
- Practice phone
- Call (714) 633-9111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Assif'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. Ahmed Assif is an anesthesiologist in Orange, California
Dr. Assif practices at Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services.
Dr. Assif's NPI, 1679507909, was assigned on July 11, 2006. Dr. Assif graduated from Hassan II University Faculty of Medicine in 1992. Dr. Assif holds California license A91310.
NPI and contact details
- NPI
- 1679507909NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638130271
- NPI enumeration date
- July 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 633-9111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ahmed Assif practices at Providence St. Joseph Hospital Orange in Orange, California
Dr. Assif's primary practice is Providence St. Joseph Hospital Orange, at 1100 West Stewart Dr, Orange, CA 92868 in Orange County. The practice phone is (714) 633-9111.
- Providence St. Joseph Hospital Orange1100 West Stewart Dr, Orange, CA 92868 · Orange CountyPhone(714) 633-9111
Source: Dmand AI Affiliation Data
Dr. Ahmed Assif is affiliated with 3 sites of care and 3 medical groups
Dr. Assif's primary practice is Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services. Dr. Assif is also affiliated with UCI Health - Fountain Valley. The medical group on file is CEP America. Dmand AI also links Dr. Assif to 2 more medical groups and 1 ambulatory surgery center, each named with a free account.
UCI Health - Fountain ValleyCEP America2 medical groupsNames with a free account1 ambulatory surgery centerName with a free account
See all 6 affiliations for Dr. AssifSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ahmed Assif's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Assif practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Providence St. Joseph Hospital Orange | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Ahmed Assif is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Assif's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Assif is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Assif's licenses on file in 4 states: California, New York, Florida and New Jersey.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
- Specialist, New York
- Florida license
- New Jersey license
Anesthesiologists near Dr. Assif
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
6,593anesthesiologists in California223anesthesiologists in Orange24anesthesiologists at Providence St. Joseph Hospital Orange
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ahmed Assif billed Medicare for 12 services in 2024
CMS data shows 12 Medicare services from Dr. Assif across 1 procedure code in 2024, for 65 Medicare patients. Medicare paid $423 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202412
Medicare patients65
Paid by Medicare$423
Procedure codes1
Dr. Assif's Medicare services by type, 2018 to 2024
- 2018
- 2024
- Surgery
- 2018: 02024: 12
- Office and hospital visits
- 2018: 792024: 0100%
Dr. Assif compared with the California median for anesthesiologists, 2024
- Dr. Assif
- California median
- Medicare services
- 12vs 7283% below
- Medicare patients
- 65vs 14355% below
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Assif'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. Assif?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Assif and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ahmed Assif treated 65 Medicare patients in 2024, average age 71
CMS counts 65 Medicare patients who saw Dr. Assif in 2024. The largest group is 65 to 74, with 30 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 42% are also on Medicaid. Their average risk score is 3.99, 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. Assif's median patient age at 66, with 53% women.
Medicare patients, 202465
Average age71
Average risk score3.99
Also on Medicaid42%
Dr. Assif's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Assif's Medicare patients by sex, 2024
- Women3148%
- Men3452%
Chronic conditions among Dr. Assif's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis71%
- Diabetes51%
- Chronic kidney disease43%
- Heart failure34%
- Ischemic heart disease31%
- Mood disorders28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Assif's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Ahmed Assif takes part in Medicare
Dr. Assif 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)
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Dr. Ahmed Assif has 1 publication on record
Dmand AI links 1 paper to Dr. Assif. Dr. Assif's most frequent co-author is Timothy Edward McAlindon, MD, MPH.
Papers1
Dr. Assif's most frequent co-authors
Recent publications by Dr. Assif
See who Dr. Assif researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Assif works with, so you can find a warm path to the right anesthesiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ahmed Assif received $417 in industry payments from 2016 to 2025
CMS Open Payments shows 9 general payments to Dr. Assif from 8 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $106.
General payments to Dr. Assif by program year, 2016 to 2025
Companies that paid Dr. Assif the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ahmed Assif graduated from Hassan II University Faculty of Medicine
Dr. Assif graduated from Hassan II University Faculty of Medicine in 1992.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Ahmed Assif accepts plans from 2 insurance carriers
Dr. Assif is in network with 2 carriers, including CMS Medicare and Molina. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- CMS Medicare
- Molina
Source: Dmand AI Insurance Network Data
Sources for Dr. Ahmed Assif'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. Ahmed Assif
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. Ahmed Assif's NPI number?
Dr. Ahmed Assif's NPI number is 1679507909. It was assigned on July 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ahmed Assif?
Dr. Ahmed Assif is an anesthesiologist in Orange, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Ahmed Assif practice?
Dr. Assif practices at 1100 West Stewart Dr, Orange, CA 92868. Dr. Assif's primary practice is Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services. Dmand AI also links Dr. Assif to 2 medical groups and 1 ambulatory surgery center.
What is Dr. Ahmed Assif's office phone number?
The practice phone on file for Dr. Assif is (714) 633-9111.
What is Dr. Ahmed Assif's medical license number?
Dr. Assif holds California license A91310, one of the licenses on file in 4 states.
Which states has Dr. Ahmed Assif been licensed in?
Dmand AI has state licenses on file for Dr. Assif in California (2005 to 2027), New York (2004 to 2027), Florida (2008 to 2011) and New Jersey (2006 to 2011).
Which hospitals is Dr. Ahmed Assif affiliated with?
Dr. Assif practices at Providence St. Joseph Hospital Orange in Orange, California. Dr. Assif is also affiliated with UCI Health - Fountain Valley.
What medical group is Dr. Ahmed Assif part of?
Dr. Assif is linked to CEP America. Dmand AI links Dr. Assif to 2 more medical groups.
Does Dr. Ahmed Assif accept Medicare?
Yes. CMS data shows Dr. Assif billed Medicare for 12 services in 2024, and Dr. Assif accepts Medicare assignment.
How many Medicare patients does Dr. Ahmed Assif see?
CMS counts 65 Medicare patients who saw Dr. Assif in 2024, with an average age of 71.
Show 8 more questionsShow fewer questions
Is Dr. Ahmed Assif board certified?
Yes. Dr. Assif is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Ahmed Assif bill to Medicare?
In 2024, Dr. Assif's most billed Medicare services were surgery: heart and blood vessels (36620).
Where did Dr. Ahmed Assif go to medical school?
Dr. Assif graduated from Hassan II University Faculty of Medicine in 1992.
Has Dr. Ahmed Assif received payments from drug or device companies?
CMS Open Payments shows $417 in general payments to Dr. Assif from 8 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Ahmed Assif been practicing?
Dr. Assif graduated from medical school in 1992, 34 years ago.
Does Dr. Ahmed Assif do research?
Dmand AI links 1 publication to Dr. Assif.
Who does Dr. Ahmed Assif publish with?
Dr. Assif's most frequent co-authors are Timothy Edward McAlindon, MD, MPH (1 shared paper).
What insurance does Dr. Ahmed Assif accept?
Dr. Assif is in network with 2 carriers, including CMS Medicare and Molina. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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