Dr. Fariba Dayhim, MD
- Medicare services, 2024
- 29
- Medicare patients, 2024
- 58
- Part D claims, 2024
- 13
- Hospital affiliations
- 1
- Industry payments
- $1,713
- Practice address
- 5666 East State Street, Rockford, IL 61108
- Practice phone
- Call (815) 226-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Fariba Dayhim is a general surgeon in Rockford, Illinois
Dr. Dayhim practices at OSF Saint Anthony Medical Center in Rockford, Illinois, part of OSF HealthCare System.
Dr. Dayhim's NPI, 1790941805, was assigned on July 29, 2008. Dr. Dayhim holds Rhode Island license MD17873.
- NPI
- 1790941805NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466510235
- NPI enumeration date
- July 29, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (815) 226-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Fariba Dayhim practices at OSF Saint Anthony Medical Center in Rockford, Illinois
Dr. Dayhim's primary practice is OSF Saint Anthony Medical Center, at 5666 East State Street, Rockford, IL 61108 in Winnebago County. The practice phone is (815) 226-2000.
- OSF Saint Anthony Medical Center5666 East State Street, Rockford, IL 61108 · Winnebago CountyPhone(815) 226-2000
Source: Dmand AI Affiliation Data
Dr. Fariba Dayhim is affiliated with 2 sites of care and 2 medical groups
Dr. Dayhim's primary practice is OSF Saint Anthony Medical Center in Rockford, Illinois, part of OSF HealthCare System. The medical group on file is OSF Multi-Specialty Group. Dmand AI also links Dr. Dayhim to 1 more group practice or clinic and 1 medical group, 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. Fariba Dayhim's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dayhim practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OSF Saint Anthony Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Fariba Dayhim is one of 1,217 general surgeons in Illinois
Surgery is Dr. Dayhim's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Dayhim's licenses on file in 4 states: Rhode Island, Maine, Michigan and Texas.
Specialties and state licenses
- Surgery, Rhode IslandPrimary
- Maine license
- Michigan license
- Texas license
General surgeons near Dr. Dayhim
Counts of general surgeons 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. Fariba Dayhim billed Medicare for 29 services in 2024
CMS data shows 29 Medicare services from Dr. Dayhim across 2 procedure codes in 2024, all of them office visits, for 58 Medicare patients. Medicare paid $4,301 for them. Every service was in an office.
Dr. Dayhim's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1152024: 2975%
Dr. Dayhim compared with the Illinois median for general surgeons, 2024
- Dr. Dayhim
- Illinois median
- Medicare services
- 29vs 19485% below
- Medicare patients
- 58vs 14460% below
Medians across 1,031 general surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Dayhim'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. Fariba Dayhim treated 58 Medicare patients in 2024, average age 71
CMS counts 58 Medicare patients who saw Dr. Dayhim in 2024. The largest group is 65 to 74, with 31 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 26% are also on Medicaid. Their average risk score is 1.69, 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. Dayhim's median patient age at 72, with 96% women.
Dr. Dayhim's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Dayhim's Medicare patients by sex, 2024
- Women4069%
- Men1831%
Chronic conditions among Dr. Dayhim's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes55%
- Arthritis38%
- Chronic kidney disease33%
- Anxiety29%
- Cancer28%
- Mood disorders26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Dayhim'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
- Women96%
- Men4%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Fariba Dayhim wrote 13 Medicare Part D claims in 2024
In 2024, Dr. Dayhim wrote 13 Medicare Part D claims for 11 patients. 92% of them were for generic drugs.
Dr. Dayhim's Part D claims by kind of drug, 2024
- Generic12 claims92%
- Brand-name and other1 claims8%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Fariba Dayhim ranks in the 82nd percentile for mastectomy in Medicare
Dr. Dayhim accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 24 procedures of mastectomy by Dr. Dayhim, more than 82% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Dayhim ranks in Medicare procedure volume
- Mastectomy
- 82nd percentile24 procedures
- Melanoma (skin cancer) excision
- 74th percentile20 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Fariba Dayhim received $1,713 in industry payments from 2016 to 2025
CMS Open Payments shows 11 general payments to Dr. Dayhim from 6 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 87% of the total. Olympus Corporation of the Americas paid the most, $1,242.
General payments to Dr. Dayhim by program year, 2016 to 2025
General payments to Dr. Dayhim by kind, 2016 to 2025
- Travel and lodging$1,48887%
- Food and beverage$21312%
- Education$121%
Companies that paid Dr. Dayhim the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Fariba Dayhim'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 (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)Doctors and Clinicians Utilization Data (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. Fariba Dayhim
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. Fariba Dayhim's NPI number?
Dr. Fariba Dayhim's NPI number is 1790941805. It was assigned on July 29, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Fariba Dayhim?
Dr. Fariba Dayhim is a general surgeon in Rockford, Illinois. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Fariba Dayhim practice?
Dr. Dayhim practices at 5666 East State Street, Rockford, IL 61108. Dr. Dayhim's primary practice is OSF Saint Anthony Medical Center in Rockford, Illinois, part of OSF HealthCare System. Dmand AI also links Dr. Dayhim to 1 group practice or clinic and 1 medical group.
What is Dr. Fariba Dayhim's office phone number?
The practice phone on file for Dr. Dayhim is (815) 226-2000.
What is Dr. Fariba Dayhim's medical license number?
Dr. Dayhim holds Rhode Island license MD17873, one of the licenses on file in 4 states.
Which states has Dr. Fariba Dayhim been licensed in?
Dmand AI has state licenses on file for Dr. Dayhim in Rhode Island, Maine, Michigan and Texas.
Which hospitals is Dr. Fariba Dayhim affiliated with?
Dr. Dayhim practices at OSF Saint Anthony Medical Center in Rockford, Illinois.
What medical group is Dr. Fariba Dayhim part of?
Dr. Dayhim is linked to OSF Multi-Specialty Group. Dmand AI links Dr. Dayhim to 1 more medical group.
Does Dr. Fariba Dayhim accept Medicare?
Yes. CMS data shows Dr. Dayhim billed Medicare for 29 services in 2024, and Dr. Dayhim accepts Medicare assignment.
How many Medicare patients does Dr. Fariba Dayhim see?
CMS counts 58 Medicare patients who saw Dr. Dayhim in 2024, with an average age of 71.
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What services does Dr. Fariba Dayhim bill to Medicare?
In 2024, Dr. Dayhim's most billed Medicare services were office visit, new patient (99204) and office visit, new patient (99205).
Has Dr. Fariba Dayhim received payments from drug or device companies?
CMS Open Payments shows $1,713 in general payments to Dr. Dayhim from 6 companies from 2016 to 2025. The largest total came from Olympus Corporation of the Americas.
How long has Dr. Fariba Dayhim been practicing?
Dr. Dayhim graduated from medical school in 1993, 33 years ago.
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