Dr. David Ly, MD
- Medicare services, 2024
- 75
- Medicare patients, 2024
- 75
- Part D claims, 2024
- 61
- Hospital affiliations
- 2
- Industry payments
- $33
- Practice address
- 1635 North Loop West, Houston, TX 77008
- Practice phone
- Call (713) 448-6796
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ly's professional email, personal email and mobile number
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Dr. David Ly is an emergency medicine physician in Houston, Texas
Dr. Ly practices at Memorial Hermann Greater Heights Hospital in Houston, Texas, part of Memorial Hermann Health System.
Dr. Ly's NPI, 1588240949, was assigned on March 24, 2021. Dr. Ly graduated from St. George's University School of Medicine in 2021. Dr. Ly holds Texas license V2524.
- NPI
- 1588240949NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204375090
- NPI enumeration date
- March 24, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (713) 448-6796
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Ly practices at Memorial Hermann Greater Heights Hospital in Houston, Texas
Dr. Ly's primary practice is Memorial Hermann Greater Heights Hospital, at 1635 North Loop West, Houston, TX 77008 in Harris County. The practice phone is (713) 448-6796.
- Memorial Hermann Greater Heights Hospital1635 North Loop West, Houston, TX 77008 · Harris CountyPhone(713) 448-6796
Source: Dmand AI Affiliation Data
Dr. David Ly is affiliated with 3 sites of care and 3 medical groups
Dr. Ly's primary practice is Memorial Hermann Greater Heights Hospital in Houston, Texas, part of Memorial Hermann Health System. Dr. Ly 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. Ly to 2 more medical groups and 1 group practice or clinic, 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. David Ly's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ly practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Memorial Hermann Greater Heights Hospital | Available with a free account |
| +2 more sites and 2 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 Memorial Hermann Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David Ly is one of 4,831 emergency medicine physicians in Texas
Emergency medicine is Dr. Ly's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Ly is licensed in Texas.
Specialties and state licenses
- Emergency medicine, TexasPrimary
Emergency medicine physicians near Dr. Ly
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. David Ly billed Medicare for 75 services in 2024
CMS data shows 75 Medicare services from Dr. Ly across 3 procedure codes in 2024, for 75 Medicare patients. Medicare paid $10,194 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ly compared with the Texas median for emergency medicine physicians, 2024
- Dr. Ly
- Texas median
- Medicare services
- 75vs 22567% below
- Medicare patients
- 75vs 20664% below
Medians across 4,588 emergency medicine physicians in Texas with Dmand AI profiles that report each measure.
Dr. Ly'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. Ly 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. David Ly treated 75 Medicare patients in 2024, average age 70
CMS counts 75 Medicare patients who saw Dr. Ly in 2024. The largest group is 65 to 74, with 23 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 37% are also on Medicaid. Their average risk score is 2.77, 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. Ly's median patient age at 40, with 60% women.
Dr. Ly's Medicare patients by age, 2024
Dr. Ly's Medicare patients by sex, 2024
- Women3952%
- Men3648%
Chronic conditions among Dr. Ly's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes61%
- Heart failure55%
- Mood disorders55%
- Ischemic heart disease52%
- Chronic kidney disease51%
- Arthritis48%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ly's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Ly wrote 61 Medicare Part D claims in 2024
In 2024, Dr. Ly wrote 61 Medicare Part D claims for 44 patients. 95% of them were for generic drugs.
Dr. Ly's Part D claims by kind of drug, 2024
- Generic58 claims95%
- Brand-name and other3 claims5%
Drug classes CMS tracks in Dr. Ly's Part D claims, 2024
- Antibiotics38%23 of 61 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. David Ly takes part in Medicare
Dr. Ly accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. David Ly received $33 in industry payments in 2024
CMS Open Payments shows 2 general payments to Dr. Ly from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $33.
Companies that paid Dr. Ly the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Ly graduated from St. George's University School of Medicine
Dr. Ly graduated from St. George's University School of Medicine in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Ly'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) |
| 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. David Ly
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. David Ly's NPI number?
Dr. David Ly's NPI number is 1588240949. It was assigned on March 24, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. David Ly?
Dr. David Ly 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. David Ly practice?
Dr. Ly practices at 1635 North Loop West, Houston, TX 77008. Dr. Ly's primary practice is Memorial Hermann Greater Heights Hospital in Houston, Texas, part of Memorial Hermann Health System. Dmand AI also links Dr. Ly to 2 medical groups and 1 group practice or clinic.
What is Dr. David Ly's office phone number?
The practice phone on file for Dr. Ly is (713) 448-6796.
What is Dr. David Ly's medical license number?
Dr. Ly holds Texas license V2524.
Which hospitals is Dr. David Ly affiliated with?
Dr. Ly practices at Memorial Hermann Greater Heights Hospital in Houston, Texas. Dr. Ly is also affiliated with HCA Houston Healthcare West.
What medical group is Dr. David Ly part of?
Dr. Ly is linked to Emergency Medicine Services of TX, PLLC. Dmand AI links Dr. Ly to 2 more medical groups.
Does Dr. David Ly accept Medicare?
Yes. CMS data shows Dr. Ly billed Medicare for 75 services in 2024, and Dr. Ly accepts Medicare assignment.
How many Medicare patients does Dr. David Ly see?
CMS counts 75 Medicare patients who saw Dr. Ly in 2024, with an average age of 70.
What services does Dr. David Ly bill to Medicare?
In 2024, Dr. Ly's most billed Medicare services were emergency department visit (99285), critical care (99291) and emergency department visit (99284).
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Where did Dr. David Ly go to medical school?
Dr. Ly graduated from St. George's University School of Medicine in 2021.
Has Dr. David Ly received payments from drug or device companies?
CMS Open Payments shows $33 in general payments to Dr. Ly from 1 company from 2024 to 2024. The largest total came from Abbvie Inc.
How long has Dr. David Ly been practicing?
Dr. Ly graduated from medical school in 2021, 5 years ago.
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