Dr. Ryan Alexander Zengou, MD
- Medicare services, 2024
- 323
- Medicare patients, 2024
- 180
- Part D claims, 2019
- 21
- Hospital affiliations
- 3
- Industry payments
- $2,884
- Practice address
- 6600 S Yale E Ave, Tulsa, OK 74136
- Practice phone
- Call (918) 488-6001
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Warren Clinic Inc
Tulsa, Oklahoma
Find Dr. Zengou'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. Ryan Alexander Zengou is a neurosurgeon in Tulsa, Oklahoma
Dr. Zengou practices at Warren Clinic Inc in Tulsa, Oklahoma.
Dr. Zengou's NPI, 1235395591, was assigned on August 5, 2008. Dr. Zengou graduated from University of Connecticut School of Medicine in 2006. Dr. Zengou holds Oklahoma license 42346.
- NPI
- 1235395591NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365698610
- NPI enumeration date
- August 5, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (918) 488-6001
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ryan Alexander Zengou practices at Warren Clinic Inc in Tulsa, Oklahoma
Dr. Zengou's primary practice is Warren Clinic Inc, at 6600 S Yale E Ave, Tulsa, OK 74136 in Tulsa County. The practice phone is (918) 488-6001.
- Warren Clinic Inc6600 S Yale E Ave, Tulsa, OK 74136 · Tulsa CountyPhone(918) 488-6001
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ryan Alexander Zengou is affiliated with 5 sites of care and 1 medical group
Dr. Zengou's primary practice is Warren Clinic Inc in Tulsa, Oklahoma. Dr. Zengou is also affiliated with Saint Francis Hospital. The medical group on file is Warren Clinic. Dmand AI also links Dr. Zengou to 2 more hospitals and 1 group practice or clinic, 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. Ryan Alexander Zengou's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zengou practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Warren Clinic Inc | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ryan Alexander Zengou is one of 98 neurosurgeons in Oklahoma
Neurological surgery is Dr. Zengou's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dmand AI has Dr. Zengou's licenses on file in 2 states: Oklahoma and Illinois.
Specialties and state licenses
- Neurological surgery, OklahomaPrimary
- Illinois license
Neurosurgeons near Dr. Zengou
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. Ryan Alexander Zengou billed Medicare for 323 services in 2024
CMS data shows 323 Medicare services from Dr. Zengou across 6 procedure codes in 2024, for 180 Medicare patients. Medicare paid $21,129 for them.
Dr. Zengou's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1072024: 323202%
Where Dr. Zengou's Medicare services took place, 2024
- In an office15749%
- In a facility16651%
Dr. Zengou compared with the Oklahoma median for neurosurgeons, 2024
- Dr. Zengou
- Oklahoma median
- Medicare services
- 323vs 40420% below
- Medicare patients
- 180vs 1926% below
- Part D claims
- 21vs 10179% below
Medians across 82 neurosurgeons in Oklahoma with Dmand AI profiles that report each measure.
Dr. Zengou'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. Zengou?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zengou and other neurosurgeons in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ryan Alexander Zengou treated 180 Medicare patients in 2024, average age 73
CMS counts 180 Medicare patients who saw Dr. Zengou in 2024. The largest group is 65 to 74, with 80 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.77, 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. Zengou's median patient age at 67, with 51% women.
Dr. Zengou's Medicare patients by age, 2024
Dr. Zengou's Medicare patients by sex, 2024
- Women9653%
- Men8447%
Chronic conditions among Dr. Zengou's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis67%
- Mood disorders43%
- Depression42%
- Diabetes41%
- Anxiety38%
- Ischemic heart disease37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zengou's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ryan Alexander Zengou wrote 21 Medicare Part D claims in 2019
In 2019, Dr. Zengou wrote 21 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $315 in total drug cost.
Dr. Zengou's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Ryan Alexander Zengou ranks in the 60th percentile for spinal fusion in Medicare
Dr. Zengou accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 61 procedures of spinal fusion by Dr. Zengou, more than 60% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Zengou ranks in Medicare procedure volume
- Spinal fusion
- 60th percentile61 procedures
- Laminectomy or laminotomy (partial removal of spine bones)
- 54th percentile24 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. Ryan Alexander Zengou received $2,884 in industry payments from 2016 to 2025
CMS Open Payments shows 63 general payments to Dr. Zengou from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Foundation Fusion Solutions, LLC paid the most, $616.
General payments to Dr. Zengou by program year, 2016 to 2025
General payments to Dr. Zengou by kind, 2016 to 2025
- Food and beverage$2,86699%
- Travel and lodging$181%
Companies that paid Dr. Zengou 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. Ryan Alexander Zengou graduated from University of Connecticut School of Medicine
Dr. Zengou graduated from University of Connecticut School of Medicine in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ryan Alexander Zengou'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) |
| 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. Ryan Alexander Zengou
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. Ryan Alexander Zengou's NPI number?
Dr. Ryan Alexander Zengou's NPI number is 1235395591. It was assigned on August 5, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryan Alexander Zengou?
Dr. Ryan Alexander Zengou is a neurosurgeon in Tulsa, Oklahoma. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. Ryan Alexander Zengou practice?
Dr. Zengou practices at 6600 S Yale E Ave, Tulsa, OK 74136. Dr. Zengou's primary practice is Warren Clinic Inc in Tulsa, Oklahoma. Dmand AI also links Dr. Zengou to 2 hospitals and 1 group practice or clinic.
What is Dr. Ryan Alexander Zengou's office phone number?
The practice phone on file for Dr. Zengou is (918) 488-6001.
What is Dr. Ryan Alexander Zengou's medical license number?
Dr. Zengou holds Oklahoma license 42346, one of the licenses on file in 2 states.
Which states has Dr. Ryan Alexander Zengou been licensed in?
Dmand AI has state licenses on file for Dr. Zengou in Oklahoma and Illinois.
Which hospitals is Dr. Ryan Alexander Zengou affiliated with?
Dr. Zengou is affiliated with Saint Francis Hospital. Dmand AI links Dr. Zengou to 2 more hospitals.
What medical group is Dr. Ryan Alexander Zengou part of?
Dr. Zengou is linked to Warren Clinic.
Does Dr. Ryan Alexander Zengou accept Medicare?
Yes. CMS data shows Dr. Zengou billed Medicare for 323 services in 2024, and Dr. Zengou accepts Medicare assignment.
How many Medicare patients does Dr. Ryan Alexander Zengou see?
CMS counts 180 Medicare patients who saw Dr. Zengou in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Ryan Alexander Zengou bill to Medicare?
In 2024, Dr. Zengou's most billed Medicare services were hospital inpatient care (99231), office visit, established patient (99213) and office visit, new patient (99203).
Where did Dr. Ryan Alexander Zengou go to medical school?
Dr. Zengou graduated from University of Connecticut School of Medicine in 2006.
What drugs does Dr. Ryan Alexander Zengou prescribe most?
In 2019 Medicare Part D data, Dr. Zengou's most prescribed drugs by claims were Levetiracetam.
Has Dr. Ryan Alexander Zengou received payments from drug or device companies?
CMS Open Payments shows $2,884 in general payments to Dr. Zengou from 24 companies from 2016 to 2025. The largest total came from Foundation Fusion Solutions, LLC.
How long has Dr. Ryan Alexander Zengou been practicing?
Dr. Zengou graduated from medical school in 2006, 20 years ago.
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