Antibodies, ViralCoinfectionDengue
Dr. Rafi Syed Ahmed, MD
NPI1205093028PAC ID3476712134
- Medicare services, 2024
- 34
- Medicare patients, 2024
- 26
- Part D claims, 2024
- 1,997
- Publications
- 416
- Hospital affiliations
- 2
- Practice address
- One Hoag Drive, Newport Beach, CA 92663
- Practice phone
- Call (949) 764-4624
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ahmed's professional email, personal email and mobile number
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Dr. Rafi Syed Ahmed is an internist in Newport Beach, California
Dr. Ahmed practices at Hoag Hospital Newport Beach in Newport Beach, California, part of Hoag Memorial Hospital Presbyterian.
Dr. Ahmed's NPI, 1205093028, was assigned on May 20, 2008. Dr. Ahmed graduated from Keck School of Medicine of USC in 2008. Dr. Ahmed's California license number on file is A112161.
NPI and contact details
- NPI
- 1205093028NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476712134
- NPI enumeration date
- May 20, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (949) 764-4624
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rafi Syed Ahmed practices at 2 locations in Newport Beach, California
Dr. Ahmed's primary practice is Hoag Hospital Newport Beach, at One Hoag Drive, Newport Beach, CA 92663 in Orange County. The practice phone is (949) 764-4624. Dr. Ahmed also practices at Hoag Hospital Newport Beach, 1 Hoag Dr, Newport Beach, CA 92663.
- Hoag Hospital Newport BeachPrimaryOne Hoag Drive, Newport Beach, CA 92663 · Orange CountyPhone(949) 764-4624
- Hoag Hospital Newport Beach1 Hoag Dr, Newport Beach, CA 92663 · Orange CountyPhone(949) 764-4624
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Rafi Syed Ahmed is affiliated with 2 sites of care and 1 medical group
Dr. Ahmed's primary practice is Hoag Hospital Newport Beach in Newport Beach, California, part of Hoag Memorial Hospital Presbyterian. Dr. Ahmed is also affiliated with Orange County - Anaheim Medical Center. The medical group on file is Hoag Clinic.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Rafi Syed Ahmed's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ahmed practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hoag Hospital Newport Beach | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Rafi Syed Ahmed is one of 16,751 internists in California
Internal medicine is Dr. Ahmed's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ahmed is board certified in hematology by the American Board of Internal Medicine. Dr. Ahmed has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Ahmed
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
16,751internists in California98internists in Newport Beach32internists at Hoag Hospital Newport Beach
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Rafi Syed Ahmed billed Medicare for 34 services in 2024
CMS data shows 34 Medicare services from Dr. Ahmed across 2 procedure codes in 2024, for 26 Medicare patients. Medicare paid $1,350 for them. Every service was in an office.
Medicare services, 202434
Medicare patients26
Paid by Medicare$1,350
Procedure codes2
Dr. Ahmed's Medicare services by type, 2024
- Office and hospital visits18
- Drugs given in the office16
Dr. Ahmed compared with the California median for internists, 2024
- Dr. Ahmed
- California median
- Medicare services
- 34vs 36191% below
- Medicare patients
- 26vs 15183% below
- Part D claims
- 1,761vs 4214.2 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Ahmed'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
Dr. Rafi Syed Ahmed treated 26 Medicare patients in 2024, average age 65
CMS counts 26 Medicare patients who saw Dr. Ahmed in 2024. 46% of them have high blood pressure, and 42% have cancer. Their average risk score is 1.48, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ahmed's median patient age at 64, with 48% women.
Medicare patients, 202426
Average age65
Average risk score1.48
Dr. Ahmed's Medicare patients by sex, 2024
- Women1142%
- Men1558%
Chronic conditions among Dr. Ahmed's Medicare patients, 2024
- High blood pressure46%
- Cancer42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ahmed's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rafi Syed Ahmed wrote 1,997 Medicare Part D claims in 2024
In 2024, Dr. Ahmed wrote 1,997 Medicare Part D claims for 281 patients. 78% of them were for generic drugs. CMS names the drug for 1,761 of them, across 29 drugs with 11 or more claims each, at $4,270,151 in total drug cost. In 2023, CMS named 1,737 claims across 25 drugs.
Part D claims, 20241,997
Drugs named by CMS29
Total drug cost$4.3M
Part D patients281
Dr. Ahmed's Part D claims by kind of drug, 2024
- Generic1,561 claims78%
- Brand-name436 claims22%
Dr. Ahmed'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. Ahmed's Part D claims, 2024
- Opioids1%24 of 1,997 claims
- Antibiotics1%20 of 1,997 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: 1,7372024: 1,7611%
Drugs named by CMS: 29 in 2024, 25 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. Rafi Syed Ahmed offers telehealth to Medicare patients
Dr. Ahmed accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ahmed as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Rafi Syed Ahmed has 416 publications on record
Dmand AI links 416 papers to Dr. Ahmed, published from 2001 to 2024. 2017 was the busiest year, with 15. The most frequent topics are CD8-Positive T-Lymphocytes, Lymphocytic choriomeningitis virus and Immunologic Memory. Dr. Ahmed has published most often in J Virol. Dr. Ahmed's most frequent co-authors are John D. Altman, MD, Mehrdad Matloubian, MD and Nadine Georges Rouphael, MD.
Papers416
Years published2001 to 2024
Dr. Ahmed's papers by year, 2015 to 2024
Topics Dr. Ahmed writes about most
- CD8-Positive T-Lymphocytes
- Lymphocytic choriomeningitis virus
- Immunologic Memory
- Mice, Inbred C57BL
- Lymphocytic Choriomeningitis
- Lymphocyte Activation
- Mice, Inbred BALB C
- Antibodies, Viral
Dr. Ahmed's most frequent co-authors
- John D. Altman, MD20 shared papers
- Mehrdad Matloubian, MD16 shared papers
- Nadine Georges Rouphael, MD10 shared papers
Recent publications by Dr. Ahmed
Trends Cancer
CD8-Positive T-LymphocytesCell DifferentiationInterleukin-2
Cold Spring Harb Perspect Biol
ChromatinEpigenomicsGene Expression Regulation
Cold Spring Harb Perspect Med
Antibodies, ViralImmunity, HumoralInfluenza, Human
PLoS Comput Biol
CD8-Positive T-LymphocytesComputational BiologyImmunologic Memory
See who Dr. Ahmed researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ahmed works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Rafi Syed Ahmed received $2,073 in industry payments from 2018 to 2025
CMS Open Payments shows 5 general payments to Dr. Ahmed from 4 drug and device companies from 2018 to 2025. Consulting fees make up the largest share, 84% of the total. AstraZeneca Pharmaceuticals LP paid the most, $1,740.
General payments to Dr. Ahmed by program year, 2018 to 2025
General payments to Dr. Ahmed by kind, 2018 to 2025
$2.1Kin total
- Consulting fees$1,74084%
- Food and beverage$33316%
Companies that paid Dr. Ahmed the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Rafi Syed Ahmed graduated from Keck School of Medicine of USC
Dr. Ahmed graduated from Keck School of Medicine of USC in 2008.
- Medical school
- Board certified in hematology
- Board certified in internal medicine
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Rafi Syed Ahmed accepts plans from 3 insurance carriers
Dr. Ahmed is in network with 3 carriers, including Kaiser Permanente, Molina and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Kaiser Permanente
- Molina
- CMS Medicare
Plan types Dr. Ahmed accepts, by number of carriers
- HMO2
- Medicare2
- EPO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Rafi Syed Ahmed'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) |
| 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. Rafi Syed Ahmed
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. Rafi Syed Ahmed's NPI number?
Dr. Rafi Syed Ahmed's NPI number is 1205093028. It was assigned on May 20, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Rafi Syed Ahmed?
Dr. Rafi Syed Ahmed is an internist in Newport Beach, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Rafi Syed Ahmed practice?
Dr. Ahmed practices at One Hoag Drive, Newport Beach, CA 92663. Dr. Ahmed also practices at 1 Hoag Dr, Newport Beach, CA 92663. Dr. Ahmed's primary practice is Hoag Hospital Newport Beach in Newport Beach, California, part of Hoag Memorial Hospital Presbyterian.
What is Dr. Rafi Syed Ahmed's office phone number?
The practice phone on file for Dr. Ahmed is (949) 764-4624.
What is Dr. Rafi Syed Ahmed's medical license number?
Dr. Ahmed's California license number on file is A112161.
Which hospitals is Dr. Rafi Syed Ahmed affiliated with?
Dr. Ahmed practices at Hoag Hospital Newport Beach in Newport Beach, California. Dr. Ahmed is also affiliated with Orange County - Anaheim Medical Center.
What medical group is Dr. Rafi Syed Ahmed part of?
Dr. Ahmed is linked to Hoag Clinic.
Does Dr. Rafi Syed Ahmed accept Medicare?
Yes. CMS data shows Dr. Ahmed billed Medicare for 34 services in 2024, and Dr. Ahmed accepts Medicare assignment.
Does Dr. Rafi Syed Ahmed offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Ahmed as offering telehealth services.
How many Medicare patients does Dr. Rafi Syed Ahmed see?
CMS counts 26 Medicare patients who saw Dr. Ahmed in 2024, with an average age of 65.
Show 9 more questionsShow fewer questions
Is Dr. Rafi Syed Ahmed board certified?
Yes. Dr. Ahmed is board certified in hematology by the American Board of Internal Medicine.
What services does Dr. Rafi Syed Ahmed bill to Medicare?
In 2024, Dr. Ahmed's most billed Medicare services were office visit, established patient (99214) and injected or infused drug (J7030).
Where did Dr. Rafi Syed Ahmed go to medical school?
Dr. Ahmed graduated from Keck School of Medicine of USC in 2008.
What drugs does Dr. Rafi Syed Ahmed prescribe most?
In 2024 Medicare Part D data, Dr. Ahmed's most prescribed drugs by claims were Abiraterone Acetate, Prednisone and Xtandi.
Has Dr. Rafi Syed Ahmed received payments from drug or device companies?
CMS Open Payments shows $2,073 in general payments to Dr. Ahmed from 4 companies from 2018 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Rafi Syed Ahmed been practicing?
Dr. Ahmed graduated from medical school in 2008, 18 years ago.
Does Dr. Rafi Syed Ahmed do research?
Dmand AI links 416 publications to Dr. Ahmed, published from 2001 to 2024.
Who does Dr. Rafi Syed Ahmed publish with?
Dr. Ahmed's most frequent co-authors are John D. Altman, MD (20 shared papers), Mehrdad Matloubian, MD (16 shared papers) and Nadine Georges Rouphael, MD (10 shared papers).
What insurance does Dr. Rafi Syed Ahmed accept?
Dr. Ahmed is in network with 3 carriers, including Kaiser Permanente, Molina and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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