Dr. John S. Marouk, DO
- Medicare services, 2024
- 410
- Medicare patients, 2024
- 189
- Part D claims, 2024
- 193
- Hospital affiliations
- 5
- Industry payments
- $90,099
- Practice address
- 2128 S Atlanta E Pl, Tulsa, OK 74114
- Practice phone
- Call (918) 583-5131
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Neurosurgical Specialists of Tulsa Inc
Tulsa, Oklahoma
Find Dr. Marouk'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. John S. Marouk is a neurosurgeon in Tulsa, Oklahoma
Dr. Marouk practices at Neurosurgical Specialists of Tulsa Inc in Tulsa, Oklahoma.
Dr. Marouk's NPI, 1427099035, was assigned on June 8, 2006. Dr. Marouk graduated from Oklahoma State University College of Osteopathic Medicine in 1991. Dr. Marouk holds Oklahoma license 3038.
- NPI
- 1427099035NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587663612
- NPI enumeration date
- June 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (918) 583-5131
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John S. Marouk practices at Neurosurgical Specialists of Tulsa Inc in Tulsa, Oklahoma
Dr. Marouk's primary practice is Neurosurgical Specialists of Tulsa Inc, at 2128 S Atlanta E Pl, Tulsa, OK 74114 in Tulsa County. The practice phone is (918) 583-5131.
- Neurosurgical Specialists of Tulsa Inc2128 S Atlanta E Pl, Tulsa, OK 74114 · Tulsa CountyPhone(918) 583-5131
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John S. Marouk is affiliated with 8 sites of care and 2 medical groups
Dr. Marouk's primary practice is Neurosurgical Specialists of Tulsa Inc in Tulsa, Oklahoma. Dr. Marouk is also affiliated with Saint Francis Hospital. The medical group on file is Neurosurgery Specialists. Dmand AI also links Dr. Marouk to 4 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John S. Marouk's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marouk practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Neurosurgical Specialists of Tulsa Inc | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John S. Marouk is one of 98 neurosurgeons in Oklahoma
Neurological surgery is Dr. Marouk's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Marouk is licensed in Oklahoma.
Specialties and state licenses
- Neurological surgery, OklahomaPrimary
Neurosurgeons near Dr. Marouk
Counts of neurosurgeons 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. John S. Marouk billed Medicare for 410 services in 2024
CMS data shows 410 Medicare services from Dr. Marouk across 9 procedure codes in 2024, for 189 Medicare patients. Medicare paid $50,800 for them.
Dr. Marouk's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4252024: 36115%
- Surgery
- 2023: 922024: 4947%
- Other services
- 2023: 172024: 0100%
Where Dr. Marouk's Medicare services took place, 2024
- In an office20450%
- In a facility20650%
Dr. Marouk compared with the Oklahoma median for neurosurgeons, 2024
- Dr. Marouk
- Oklahoma median
- Medicare services
- 410vs 404Close to median
- Medicare patients
- 189vs 192Close to median
- Part D claims
- 152vs 10150% above
Medians across 82 neurosurgeons in Oklahoma with Dmand AI profiles that report each measure.
Dr. Marouk'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. Marouk?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Marouk and other neurosurgeons in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John S. Marouk treated 189 Medicare patients in 2024, average age 73
CMS counts 189 Medicare patients who saw Dr. Marouk in 2024. The largest group is 65 to 74, with 85 patients. 75% of them have arthritis, and 75% have high blood pressure. 8% are also on Medicaid. Their average risk score is 1.67, 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. Marouk's median patient age at 65, with 50% women.
Dr. Marouk's Medicare patients by age, 2024
Dr. Marouk's Medicare patients by sex, 2024
- Women10254%
- Men8746%
Chronic conditions among Dr. Marouk's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Mood disorders46%
- Depression43%
- Anxiety40%
- Diabetes37%
- Chronic kidney disease34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Marouk's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John S. Marouk wrote 193 Medicare Part D claims in 2024
In 2024, Dr. Marouk wrote 193 Medicare Part D claims for 66 patients. 99% of them were for generic drugs. CMS names the drug for 152 of them, across 6 drugs with 11 or more claims each, at $1,938 in total drug cost. In 2023, CMS named 236 claims across 6 drugs.
Dr. Marouk's Part D claims by kind of drug, 2024
- Generic192 claims99%
- Brand-name and other1 claims1%
Dr. Marouk'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. Marouk's Part D claims, 2024
- Opioids23%44 of 193 claims
- Antibiotics6%11 of 193 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: 2362024: 15236%
Drugs named by CMS: 6 in 2024, 6 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. John S. Marouk ranks in the 69th percentile for laminectomy or laminotomy (partial removal of spine bones) in Medicare
Dr. Marouk accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 39 procedures of laminectomy or laminotomy (partial removal of spine bones) by Dr. Marouk, more than 69% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Marouk ranks in Medicare procedure volume
- Spinal fusion
- 64th percentile70 procedures
- Laminectomy or laminotomy (partial removal of spine bones)
- 69th percentile39 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. John S. Marouk received $90,099 in industry payments from 2016 to 2025
CMS Open Payments shows 28 general payments to Dr. Marouk from 13 drug and device companies from 2016 to 2025. Ownership or investment make up the largest share, 96% of the total. Amendia, Inc. paid the most, $86,400.
General payments to Dr. Marouk by program year, 2016 to 2025
General payments to Dr. Marouk by kind, 2016 to 2025
- Ownership or investment$86,40096%
- Food and beverage$2,0572%
- Travel and lodging$1,6432%
Companies that paid Dr. Marouk 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. John S. Marouk graduated from Oklahoma State University College of Osteopathic Medicine
Dr. Marouk graduated from Oklahoma State University College of Osteopathic Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John S. Marouk'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. John S. Marouk
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. John S. Marouk's NPI number?
Dr. John S. Marouk's NPI number is 1427099035. It was assigned on June 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John S. Marouk?
Dr. John S. Marouk is a neurosurgeon in Tulsa, Oklahoma. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. John S. Marouk practice?
Dr. Marouk practices at 2128 S Atlanta E Pl, Tulsa, OK 74114. Dr. Marouk's primary practice is Neurosurgical Specialists of Tulsa Inc in Tulsa, Oklahoma. Dmand AI also links Dr. Marouk to 4 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. John S. Marouk's office phone number?
The practice phone on file for Dr. Marouk is (918) 583-5131.
What is Dr. John S. Marouk's medical license number?
Dr. Marouk holds Oklahoma license 3038.
Which hospitals is Dr. John S. Marouk affiliated with?
Dr. Marouk is affiliated with Saint Francis Hospital. Dmand AI links Dr. Marouk to 4 more hospitals.
What medical group is Dr. John S. Marouk part of?
Dr. Marouk is linked to Neurosurgery Specialists. Dmand AI links Dr. Marouk to 1 more medical group.
Does Dr. John S. Marouk accept Medicare?
Yes. CMS data shows Dr. Marouk billed Medicare for 410 services in 2024, and Dr. Marouk accepts Medicare assignment.
How many Medicare patients does Dr. John S. Marouk see?
CMS counts 189 Medicare patients who saw Dr. Marouk in 2024, with an average age of 73.
What services does Dr. John S. Marouk bill to Medicare?
In 2024, Dr. Marouk's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99231) and office visit, new patient (99204).
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Where did Dr. John S. Marouk go to medical school?
Dr. Marouk graduated from Oklahoma State University College of Osteopathic Medicine in 1991.
What drugs does Dr. John S. Marouk prescribe most?
In 2024 Medicare Part D data, Dr. Marouk's most prescribed drugs by claims were Gabapentin, Cyclobenzaprine HCl and Oxycodone-Acetaminophen.
Has Dr. John S. Marouk received payments from drug or device companies?
CMS Open Payments shows $90,099 in general payments to Dr. Marouk from 13 companies from 2016 to 2025. The largest total came from Amendia, Inc.
How long has Dr. John S. Marouk been practicing?
Dr. Marouk graduated from medical school in 1991, 35 years ago.
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