Dr. Mahmoud Rayes, MD
- Medicare services, 2024
- 275
- Medicare patients, 2024
- 121
- Part D claims, 2024
- 158
- Hospital affiliations
- 6
- Industry payments
- $57,707
- Practice address
- 401 S Ballenger Highway, Flint, MI 48532
- Practice phone
- Call (810) 342-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Rayes' professional email, personal email and mobile number
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Dr. Mahmoud Rayes is a vascular neurology physician in Flint, Michigan
Dr. Rayes practices at McLaren Flint in Flint, Michigan, part of McLaren Health Care.
Dr. Rayes' NPI, 1942464961, was assigned on July 18, 2008. Dr. Rayes holds South Carolina license 37927.
- NPI
- 1942464961NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507005428
- NPI enumeration date
- July 18, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (810) 342-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mahmoud Rayes practices at McLaren Flint in Flint, Michigan
Dr. Rayes' primary practice is McLaren Flint, at 401 S Ballenger Highway, Flint, MI 48532 in Genesee County. The practice phone is (810) 342-2000.
- McLaren Flint401 S Ballenger Highway, Flint, MI 48532 · Genesee CountyPhone(810) 342-2000
Source: Dmand AI Affiliation Data
Dr. Mahmoud Rayes is affiliated with 7 sites of care and 5 medical groups
Dr. Rayes' primary practice is McLaren Flint in Flint, Michigan, part of McLaren Health Care. Dr. Rayes is also affiliated with Select Specialty Hospital - Flint. The medical group on file is McLaren Flint. Dmand AI also links Dr. Rayes to 4 more hospitals, 4 medical groups and 1 group practice or clinic, each named with a free account. Dr. Rayes' employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mahmoud Rayes' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rayes practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| McLaren Flint | Available with a free account |
| +6 more sites and 4 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 McLaren Health Care and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mahmoud Rayes is one of 36 vascular neurology physicians in Michigan
Vascular neurology is Dr. Rayes' primary specialty in the NPI Registry, under taxonomy code 2084V0102X. Dr. Rayes is licensed in South Carolina.
Specialties and state licenses
- Vascular neurology, South CarolinaPrimary
Vascular neurology physicians near Dr. Rayes
Counts of vascular neurology physicians 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. Mahmoud Rayes billed Medicare for 275 services in 2024
CMS data shows 275 Medicare services from Dr. Rayes across 12 procedure codes in 2024, for 121 Medicare patients. Medicare paid $58,382 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Rayes' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1862024: 12433%
- Surgery
- 2023: 722024: 9735%
- Imaging
- 2023: 282024: 5493%
Dr. Rayes compared with the Michigan median for vascular neurology physicians, 2024
- Dr. Rayes
- Michigan median
- Medicare services
- 275vs 1062.6 times
- Medicare patients
- 121vs 10812% above
- Part D claims
- 58vs 4045% above
Medians across 33 vascular neurology physicians in Michigan with Dmand AI profiles that report each measure.
Dr. Rayes' 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. Mahmoud Rayes treated 121 Medicare patients in 2024, average age 76
CMS counts 121 Medicare patients who saw Dr. Rayes in 2024. The largest group is 65 to 74, with 48 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.62, 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. Rayes' median patient age at 70, with 61% women.
Dr. Rayes' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Rayes' Medicare patients by sex, 2024
- Women6150%
- Men6050%
Chronic conditions among Dr. Rayes' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Stroke or TIA75%
- Arthritis60%
- Ischemic heart disease54%
- Atrial fibrillation46%
- Diabetes40%
- Heart failure37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Rayes' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mahmoud Rayes wrote 158 Medicare Part D claims in 2024
In 2024, Dr. Rayes wrote 158 Medicare Part D claims for 39 patients. 73% of them were for generic drugs. CMS names the drug for 58 of them, across 3 drugs with 11 or more claims each, at $26,663 in total drug cost. In 2023, CMS named 75 claims across 5 drugs.
Dr. Rayes' Part D claims by kind of drug, 2024
- Generic116 claims73%
- Brand-name42 claims27%
Dr. Rayes' 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 752024: 5823%
Drugs named by CMS: 3 in 2024, 5 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. Mahmoud Rayes offers telehealth to Medicare patients
Dr. Rayes accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Rayes as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mahmoud Rayes received $57,707 in industry payments from 2016 to 2025
CMS Open Payments shows 267 general payments to Dr. Rayes from 31 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 56% of the total. Medtronic, Inc. paid the most, $48,862.
General payments to Dr. Rayes by program year, 2016 to 2025
General payments to Dr. Rayes by kind, 2016 to 2025
- Speaker and faculty fees$32,17556%
- Food and beverage$11,14819%
- Consulting fees$7,42513%
- Travel and lodging$6,95912%
Companies that paid Dr. Rayes 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. Mahmoud Rayes'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. Mahmoud Rayes
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. Mahmoud Rayes' NPI number?
Dr. Mahmoud Rayes' NPI number is 1942464961. It was assigned on July 18, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Mahmoud Rayes?
Dr. Mahmoud Rayes is a vascular neurology physician in Flint, Michigan. The primary specialty in the NPI Registry is Vascular Neurology Physician (taxonomy code 2084V0102X).
Where does Dr. Mahmoud Rayes practice?
Dr. Rayes practices at 401 S Ballenger Highway, Flint, MI 48532. Dr. Rayes' primary practice is McLaren Flint in Flint, Michigan, part of McLaren Health Care. Dmand AI also links Dr. Rayes to 4 hospitals, 4 medical groups and 1 group practice or clinic.
What is Dr. Mahmoud Rayes' office phone number?
The practice phone on file for Dr. Rayes is (810) 342-2000.
What is Dr. Mahmoud Rayes' medical license number?
Dr. Rayes holds South Carolina license 37927.
Which hospitals is Dr. Mahmoud Rayes affiliated with?
Dr. Rayes practices at McLaren Flint in Flint, Michigan. Dr. Rayes is also affiliated with Select Specialty Hospital - Flint. Dmand AI links Dr. Rayes to 4 more hospitals.
What medical group is Dr. Mahmoud Rayes part of?
Dr. Rayes is linked to McLaren Flint. Dmand AI links Dr. Rayes to 4 more medical groups.
Does Dr. Mahmoud Rayes accept Medicare?
Yes. CMS data shows Dr. Rayes billed Medicare for 275 services in 2024, and Dr. Rayes accepts Medicare assignment.
Does Dr. Mahmoud Rayes offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Rayes as offering telehealth services.
How many Medicare patients does Dr. Mahmoud Rayes see?
CMS counts 121 Medicare patients who saw Dr. Rayes in 2024, with an average age of 76.
Show 4 more questionsShow fewer questions
What services does Dr. Mahmoud Rayes bill to Medicare?
In 2024, Dr. Rayes' most billed Medicare services were hospital inpatient care (99232), critical care (99291) and surgery: brain, spine and nerves (61645).
What drugs does Dr. Mahmoud Rayes prescribe most?
In 2024 Medicare Part D data, Dr. Rayes' most prescribed drugs by claims were Brilinta, Eliquis and Clopidogrel.
Has Dr. Mahmoud Rayes received payments from drug or device companies?
CMS Open Payments shows $57,707 in general payments to Dr. Rayes from 31 companies from 2016 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. Mahmoud Rayes been practicing?
Dr. Rayes graduated from medical school in 2005, 21 years ago.
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