Lyssa N. Chacko, MD
Gastroenterology Physician · Denver, CO
Lyssa N. Chacko, MD is a gastroenterology physician with a practice address in Denver, Colorado, and NPI 1629115993, issued on Jan 30, 2007. Check the license on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Lyssa N. Chacko
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MD431382 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1055 Clermont St # MS 111E, Denver, CO 80220
- Phone
- (303) 399-8020
- Enumerated
- Jan 30, 2007
- Record last updated
- Mar 16, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid ID
- 1019975240001 PA
- Medicare enrollment
- Enrolled (PECOS I20100518000116); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 334 in Colorado → Look up another NPI →
Verify Lyssa N. Chacko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 91.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Denver Health And Hospital AuthorityDenver, CO
- University Physicians IncorporatedAurora, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lyssa N. Chacko among 334 gastroenterology physician records in Colorado
Lyssa N. Chacko, MD is one of 334 gastroenterology physician records with a practice address in Colorado. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 37% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2001 · median 2003 among the 258 with a school on file
- Record last updated2010 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Colorado
There are 334 gastroenterology physician records in Colorado.
All 334 in Colorado → Every provider in Denver → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jennifer Brenner, M.D.Denver, CO 802201760611305
- Aaron Burrows, MDDenver, CO 802201366491367
- Benjamin Cassell, MDDenver, CO 802201184885790
- Jonathan Fishman, MDDenver, CO 802201104813559
- Philip Guzelian, MDDenver, CO 802201619067394
- Mark Linkow, MDDenver, CO 802201639163587
- Lawrence Miller, M.D.Denver, CO 802201912116732
- Stephen New, M.D.Denver, CO 802201730488099
Common questions
What is Lyssa N. Chacko, MD's NPI number?
Lyssa N. Chacko, MD's National Provider Identifier (NPI) is 1629115993, issued on Jan 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Lyssa N. Chacko, MD located?
The NPPES record lists a practice address at 1055 Clermont St # MS 111E, Denver, CO, 80220. Phone: (303) 399-8020. Providers update this record themselves, so call before visiting.
How can I verify Lyssa N. Chacko, MD's license?
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.
What is Lyssa N. Chacko, MD's MIPS final score?
The 2023 MIPS final score is 91.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.