Leto Quarles, M.D.
Family Medicine Physician · Parker, CO
Leto Quarles, M.D. is a family medicine physician with a practice address in Parker, Colorado, and NPI 1811917883, issued on Jul 20, 2006. Check the license (Colorado 45461, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Leto Quarles
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 45461 CO
Self-reported in NPPES; status is on the state search - Practice location
- 12230 Lioness Way, Parker, CO 80134
- Phone
- (720) 644-9355
- Enumerated
- Jul 20, 2006
- Record last updated
- Aug 23, 2024
- Medicaid ID
- 57820511 CO
- Medicare enrollment
- Enrolled (PECOS I20070717000143); accepts Medicare assignment
- Medical or professional school
- University Of Utah School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 12230 Lioness Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ekua Antwi, FNPFamily Nurse Practitioner1336721976
- Kyla Araujo, ACNPC-AGAcute Care Nurse Practitioner1952955866
- Elizabeth ArbuisoFamily Nurse Practitioner1972250017
- James Archuleta, FNP-BCFamily Nurse Practitioner1316220742
Verify Leto Quarles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 45461Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% more Medicare Part D claims than the average family medicine physician in 2024
5,525 Medicare Part D claims for 261 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 59 claims were for opioids.
Most prescribed
- Atorvastatin Calcium330 claims
- Eliquis289 claims
- Levothyroxine Sodium252 claims
- Furosemide181 claims
- Lisinopril170 claims
- Amlodipine Besylate159 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Summit Medical Consultants PLLCParker, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leto Quarles among 3,563 family medicine physician records in Colorado
Leto Quarles, M.D. is one of 3,563 family medicine physician records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 56% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2002 · median 2008 among the 2,077 with a school on file
- Record last updated2024 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
61 family medicine physician records list a practice address in Parker
They are 61 of the 1,871 NPPES records with a practice address in Parker, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Parker → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ian Bach, MDParker, CO 801341003895293
- Elizabeth Clark, D.O., MPH & TMParker, CO 801341134195993
- Charlie Dickman, MDParker, CO 801341205832433
- Patricia Fahey, M.D.Parker, CO 801341083655450
- Sivarama Guntur, MDParker, CO 801341003865676
- Lisa Ingram, M.D.Parker, CO 801341841217650
- John Morrison, M.D.Parker, CO 801341720049604
- Amy Scanlan, MDParker, CO 801341811994783
Common questions
What is Leto Quarles, M.D.'s NPI number?
Leto Quarles, M.D.'s National Provider Identifier (NPI) is 1811917883, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leto Quarles, M.D. located?
The NPPES record lists a practice address at 12230 Lioness Way, Parker, CO, 80134. Phone: (720) 644-9355. Providers update this record themselves, so call before visiting.
How can I verify Leto Quarles, M.D.'s license?
NPPES lists Colorado license number 45461, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Leto Quarles, M.D. prescribe under Medicare Part D?
In 2024, Leto Quarles, M.D. had 5,525 Medicare Part D claims for 261 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.