Dr. Denise M. Ryan, MD
- Medicare services, 2024
- 32
- Medicare patients, 2024
- 35
- Part D claims, 2024
- 125
- Hospital affiliations
- 2
- Industry payments
- $32
- Practice address
- 710 Cypress Creek Parkway, Houston, TX 77090
- Practice phone
- Call (281) 440-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ryan's professional email, personal email and mobile number
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Dr. Denise M. Ryan is an emergency medicine physician in Houston, Texas
Dr. Ryan practices at HCA Houston Healthcare Northwest in Houston, Texas, part of HCA Healthcare.
Dr. Ryan's NPI, 1528038163, was assigned on January 25, 2006. Dr. Ryan graduated from Albert Einstein College of Medicine in 2000. Dr. Ryan holds Texas license L7148.
- NPI
- 1528038163NPI Registry (opens in a new tab)
- NPI enumeration date
- January 25, 2006
- NPI status
- Active
- Practice phone
- (281) 440-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Denise M. Ryan practices at 2 locations in Houston, Texas
Dr. Ryan's primary practice is HCA Houston Healthcare Northwest, at 710 Cypress Creek Parkway, Houston, TX 77090 in Harris County. The practice phone is (281) 440-1000. Dr. Ryan also practices at Northwest Houston Hospital, 709 Cypress Station Dr, Houston, TX 77090.
- HCA Houston Healthcare NorthwestPrimary710 Cypress Creek Parkway, Houston, TX 77090 · Harris CountyPhone(281) 440-1000
- Northwest Houston Hospital709 Cypress Station Dr, Houston, TX 77090 · Harris CountyPhone(281) 440-2105
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Denise M. Ryan is affiliated with 2 sites of care and 2 medical groups
Dr. Ryan's primary practice is HCA Houston Healthcare Northwest in Houston, Texas, part of HCA Healthcare. Dr. Ryan is also affiliated with HCA Houston Healthcare West. The medical group on file is Emergency Medicine Services of TX, PLLC. Dmand AI also links Dr. Ryan to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Denise M. Ryan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ryan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HCA Houston Healthcare Northwest | 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. Denise M. Ryan is one of 4,831 emergency medicine physicians in Texas
Emergency medicine is Dr. Ryan's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Ryan is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Ryan's licenses on file in 2 states: Texas and Pennsylvania.
Specialties and state licenses
- Emergency medicine, TexasPrimary
- Pennsylvania license
Emergency medicine physicians near Dr. Ryan
Counts of emergency medicine 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. Denise M. Ryan billed Medicare for 32 services in 2024
CMS data shows 32 Medicare services from Dr. Ryan across 2 procedure codes in 2024, for 35 Medicare patients. Medicare paid $3,699 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ryan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 132024: 32146%
Dr. Ryan compared with the Texas median for emergency medicine physicians, 2024
- Dr. Ryan
- Texas median
- Medicare services
- 32vs 22586% below
- Medicare patients
- 35vs 20683% below
- Part D claims
- 11vs 7485% below
Medians across 4,588 emergency medicine physicians in Texas with Dmand AI profiles that report each measure.
Dr. Ryan'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ryan and other emergency medicine physicians in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Denise M. Ryan treated 35 Medicare patients in 2024, average age 71
CMS counts 35 Medicare patients who saw Dr. Ryan in 2024. 75% of them have high blood pressure, and 69% have high cholesterol. 34% are also on Medicaid. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ryan's median patient age at 32, with 63% women.
Dr. Ryan's Medicare patients by sex, 2024
- Women2469%
- Men1131%
Chronic conditions among Dr. Ryan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol69%
- Arthritis51%
- Diabetes46%
- Chronic kidney disease43%
- Anxiety37%
- Ischemic heart disease37%
- COPD34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ryan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 32
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Denise M. Ryan wrote 125 Medicare Part D claims in 2024
In 2024, Dr. Ryan wrote 125 Medicare Part D claims for 66 patients. 93% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $40 in total drug cost. In 2019, CMS named 12 claims across 1 drug.
Dr. Ryan's Part D claims by kind of drug, 2024
- Generic116 claims93%
- Brand-name and other9 claims7%
Dr. Ryan'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. Ryan's Part D claims, 2024
- Antibiotics18%22 of 125 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, 2019 to 2024
- 2019
- 2024
- Claims for drugs CMS names
- 2019: 122024: 118%
Drugs named by CMS: 1 in 2024, 1 in 2019.
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
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Dr. Denise M. Ryan received $32 in industry payments in 2023
CMS Open Payments shows 2 general payments to Dr. Ryan from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $32.
Companies that paid Dr. Ryan the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Denise M. Ryan graduated from Albert Einstein College of Medicine
Dr. Ryan graduated from Albert Einstein College of Medicine in 2000.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Denise M. Ryan accepts plans from 20 insurance carriers
Dr. Ryan is in network with 20 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- +12 more carriersWith a free account
Plan types Dr. Ryan accepts, by number of carriers
- PPO13
- HMO10
- Medicare8
- POS7
- EPO4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Denise M. Ryan'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) |
| 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. Denise M. Ryan
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. Denise M. Ryan's NPI number?
Dr. Denise M. Ryan's NPI number is 1528038163. It was assigned on January 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Denise M. Ryan?
Dr. Denise M. Ryan is an emergency medicine physician in Houston, Texas. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Denise M. Ryan practice?
Dr. Ryan practices at 710 Cypress Creek Parkway, Houston, TX 77090. Dr. Ryan also practices at 709 Cypress Station Dr, Houston, TX 77090. Dr. Ryan's primary practice is HCA Houston Healthcare Northwest in Houston, Texas, part of HCA Healthcare. Dmand AI also links Dr. Ryan to 1 medical group.
What is Dr. Denise M. Ryan's office phone number?
The practice phone on file for Dr. Ryan is (281) 440-1000.
What is Dr. Denise M. Ryan's medical license number?
Dr. Ryan holds Texas license L7148, one of the licenses on file in 2 states.
Which states has Dr. Denise M. Ryan been licensed in?
Dmand AI has state licenses on file for Dr. Ryan in Texas (2003 to 2026) and Pennsylvania (2001 to 2003).
Which hospitals is Dr. Denise M. Ryan affiliated with?
Dr. Ryan practices at HCA Houston Healthcare Northwest in Houston, Texas. Dr. Ryan is also affiliated with HCA Houston Healthcare West.
What medical group is Dr. Denise M. Ryan part of?
Dr. Ryan is linked to Emergency Medicine Services of TX, PLLC. Dmand AI links Dr. Ryan to 1 more medical group.
Does Dr. Denise M. Ryan accept Medicare?
Yes. CMS data shows Dr. Ryan billed Medicare for 32 services in 2024.
How many Medicare patients does Dr. Denise M. Ryan see?
CMS counts 35 Medicare patients who saw Dr. Ryan in 2024, with an average age of 71.
Show 7 more questionsShow fewer questions
Is Dr. Denise M. Ryan board certified?
Yes. Dr. Ryan is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Denise M. Ryan bill to Medicare?
In 2024, Dr. Ryan's most billed Medicare services were emergency department visit (99284) and emergency department visit (99285).
Where did Dr. Denise M. Ryan go to medical school?
Dr. Ryan graduated from Albert Einstein College of Medicine in 2000.
What drugs does Dr. Denise M. Ryan prescribe most?
In 2024 Medicare Part D data, Dr. Ryan's most prescribed drugs by claims were Cyclobenzaprine HCl.
Has Dr. Denise M. Ryan received payments from drug or device companies?
CMS Open Payments shows $32 in general payments to Dr. Ryan from 1 company from 2023 to 2023. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Denise M. Ryan been practicing?
Dr. Ryan graduated from medical school in 2000, 26 years ago.
What insurance does Dr. Denise M. Ryan accept?
Dr. Ryan is in network with 20 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
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