Dr. David Marc Leon, MD
- Medicare services, 2024
- 746
- Medicare patients, 2024
- 143
- Part D claims, 2024
- 3,107
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 1805 Kipling St, Lakewood, CO 80215
- Practice phone
- Call (303) 231-9700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lakewood Internal Medicine Professional
Lakewood, Colorado
Find Dr. Leon'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. David Marc Leon is an internist in Lakewood, Colorado
Dr. Leon practices at Lakewood Internal Medicine Professional in Lakewood, Colorado.
Dr. Leon's NPI, 1174605737, was assigned on October 20, 2006. Dr. Leon graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1988. Dr. Leon holds Colorado license 32198.
- NPI
- 1174605737NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022204114
- NPI enumeration date
- October 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (303) 231-9700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Marc Leon practices at Lakewood Internal Medicine Professional in Lakewood, Colorado
Dr. Leon's primary practice is Lakewood Internal Medicine Professional, at 1805 Kipling St, Lakewood, CO 80215 in Jefferson County. The practice phone is (303) 231-9700.
- Lakewood Internal Medicine Professional1805 Kipling St, Lakewood, CO 80215 · Jefferson CountyPhone(303) 231-9700
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Marc Leon is affiliated with 3 sites of care and 1 medical group
Dr. Leon's primary practice is Lakewood Internal Medicine Professional in Lakewood, Colorado. Dr. Leon is also affiliated with Lutheran Hospital. The medical group on file is Lakewood Internal Medicine. Dmand AI also links Dr. Leon to 1 more group practice or clinic, 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. David Marc Leon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leon practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lakewood Internal Medicine Professional | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Marc Leon is one of 1,668 internists in Colorado
Internal medicine is Dr. Leon's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Leon is licensed in Colorado.
Specialties and state licenses
- Internal medicine, ColoradoPrimary
Internists near Dr. Leon
Counts of internists 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 Marc Leon billed Medicare for 746 services in 2024
CMS data shows 746 Medicare services from Dr. Leon across 9 procedure codes in 2024, for 143 Medicare patients. Medicare paid $54,617 for them. Every service was in an office.
Dr. Leon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4372024: 4483%
- Other services
- 2023: 722024: 298314%
Dr. Leon compared with the Colorado median for internists, 2024
- Dr. Leon
- Colorado median
- Medicare services
- 746vs 37798% above
- Medicare patients
- 143vs 18623% below
- Part D claims
- 2,390vs 3187.5 times
Medians across 1,630 internists in Colorado with Dmand AI profiles that report each measure.
Dr. Leon'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. Leon?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leon and other internists in Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Marc Leon treated 143 Medicare patients in 2024, average age 75
CMS counts 143 Medicare patients who saw Dr. Leon in 2024. The largest group is 65 to 74, with 68 patients. 71% of them have high blood pressure, and 69% have chronic kidney disease. 18% are also on Medicaid. Their average risk score is 1.28, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Leon's median patient age at 71, with 45% women.
Dr. Leon's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Leon's Medicare patients by sex, 2024
- Women7049%
- Men7351%
Chronic conditions among Dr. Leon's Medicare patients, 2024
- High blood pressure71%
- Chronic kidney disease69%
- High cholesterol62%
- Arthritis38%
- Anxiety25%
- Depression24%
- Mood disorders24%
- Ischemic heart disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Leon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Marc Leon wrote 3,107 Medicare Part D claims in 2024
In 2024, Dr. Leon wrote 3,107 Medicare Part D claims for 229 patients. 85% of them were for generic drugs. CMS names the drug for 2,390 of them, across 78 drugs with 11 or more claims each, at $183,580 in total drug cost. In 2023, CMS named 1,319 claims across 50 drugs.
Dr. Leon's Part D claims by kind of drug, 2024
- Generic2,640 claims85%
- Brand-name443 claims14%
- Other24 claims1%
Dr. Leon'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. Leon's Part D claims, 2024
- Opioids2%58 of 3,107 claims
- Antibiotics4%131 of 3,107 claims
- Antipsychotics, patients 65 and over3%85 of 3,107 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: 1,3192024: 2,39081%
Drugs named by CMS: 78 in 2024, 50 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. David Marc Leon offers telehealth to Medicare patients
Dr. Leon accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Leon as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David Marc Leon has 1 publication on record
Dmand AI links 1 paper to Dr. Leon in 2022. Dr. Leon's most frequent co-authors are Mohammad Ghasemi Rad, MD, David Leon, MD and Aaroh Parikh, MBA, MD.
Dr. Leon's most frequent co-authors
- Mohammad Ghasemi Rad, MD1 shared paper
- David Leon, MD1 shared paper
- Aaroh Parikh, MBA, MD1 shared paper
Recent publications by Dr. Leon
See who Dr. Leon researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Leon works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David Marc Leon received $6,593 in industry payments from 2016 to 2025
CMS Open Payments shows 481 general payments to Dr. Leon from 38 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 88% of the total. Pfizer Inc. paid the most, $1,172.
General payments to Dr. Leon by program year, 2016 to 2025
General payments to Dr. Leon by kind, 2016 to 2025
- Food and beverage$5,80488%
- Travel and lodging$78912%
Companies that paid Dr. Leon 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. David Marc Leon graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Leon graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Marc Leon'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Marc Leon
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 Marc Leon's NPI number?
Dr. David Marc Leon's NPI number is 1174605737. It was assigned on October 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David Marc Leon?
Dr. David Marc Leon is an internist in Lakewood, Colorado. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David Marc Leon practice?
Dr. Leon practices at 1805 Kipling St, Lakewood, CO 80215. Dr. Leon's primary practice is Lakewood Internal Medicine Professional in Lakewood, Colorado. Dmand AI also links Dr. Leon to 1 group practice or clinic.
What is Dr. David Marc Leon's office phone number?
The practice phone on file for Dr. Leon is (303) 231-9700.
What is Dr. David Marc Leon's medical license number?
Dr. Leon holds Colorado license 32198.
Which hospitals is Dr. David Marc Leon affiliated with?
Dr. Leon is affiliated with Lutheran Hospital.
What medical group is Dr. David Marc Leon part of?
Dr. Leon is linked to Lakewood Internal Medicine.
Does Dr. David Marc Leon accept Medicare?
Yes. CMS data shows Dr. Leon billed Medicare for 746 services in 2024, and Dr. Leon accepts Medicare assignment.
Does Dr. David Marc Leon offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Leon as offering telehealth services.
How many Medicare patients does Dr. David Marc Leon see?
CMS counts 143 Medicare patients who saw Dr. Leon in 2024, with an average age of 75.
Show 7 more questionsShow fewer questions
What services does Dr. David Marc Leon bill to Medicare?
In 2024, Dr. Leon's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99215) and medicare service (G2211).
Where did Dr. David Marc Leon go to medical school?
Dr. Leon graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1988.
What drugs does Dr. David Marc Leon prescribe most?
In 2024 Medicare Part D data, Dr. Leon's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
Has Dr. David Marc Leon received payments from drug or device companies?
CMS Open Payments shows $6,593 in general payments to Dr. Leon from 38 companies from 2016 to 2025. The largest total came from Pfizer Inc.
How long has Dr. David Marc Leon been practicing?
Dr. Leon graduated from medical school in 1988, 38 years ago.
Does Dr. David Marc Leon do research?
Dmand AI links 1 publication to Dr. Leon.
Who does Dr. David Marc Leon publish with?
Dr. Leon's most frequent co-authors are Mohammad Ghasemi Rad, MD (1 shared paper), David Leon, MD (1 shared paper) and Aaroh Parikh, MBA, MD (1 shared paper).
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