Gregory Michael Day
Surgical Critical Care Physician · Colorado Springs, CO
Gregory Michael Day is a surgical critical care physician with a practice address in Colorado Springs, Colorado, and NPI 1295024370, issued on Mar 29, 2011. Check the license (Colorado DR.0058888, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregory Michael Day
- Primary taxonomy
- Surgical Critical Care Physician 2086S0102X
- License numbers
- DR.0058888 CO
125059546 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1400 E Boulder St Ste 600, Colorado Springs, CO 80909
- Phone
- (719) 364-6487
- Enumerated
- Mar 29, 2011
- Record last updated
- Jul 24, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (719) 364-6488
- Medicare enrollment
- Enrolled (PECOS I20170907002159); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgical critical care physician records → All 23 in Colorado → Look up another NPI →
Also registered at 1400 E Boulder St Ste 600
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gregory Borst, M.D.Surgery Physician1770803769
- Jacqueline Bortner, CRNPFamily Nurse Practitioner1346234366
- Julie Caballero, PA-C, MPASPhysician Assistant1154671295
- David Corry, M.D.Vascular Surgery Physician1245217108
- Chase Devalk, PA-CPhysician Assistant1891316089
- Christopher DorozynskiSurgical Physician Assistant1477983369
Verify Gregory Michael Day in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0058888Check 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 MIPS final score for 2023 (Medicare payment program): 97.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Poudre Valley Medical Group LLCColorado Springs, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Michael Day among 23 surgical critical care physician records in Colorado
Gregory Michael Day is one of 23 surgical critical care physician records with a practice address in Colorado. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 57% of them.
- NPI issued2011 · 57% of these records are older, 35% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated2011 · median 2010 among the 19 with a school on file
- Record last updated2017 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0102X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Critical Care Physician providers in Colorado
There are 23 surgical critical care physician records in Colorado.
All 23 in Colorado → Every provider in Colorado Springs → Surgical Critical Care Physician nationwide →
The 8 surgical critical care physician records with the nearest ZIP codes
- Chad Hall, M.D.Colorado Springs, CO 809091457795379
- Abid Khan, M.D.Colorado Springs, CO 809091952622847
- Nathaniel Poulin, M.DColorado Springs, CO 809091497916738
- Lisa SchlitzkusColorado Springs, CO 809091053503599
- Thomas Schroeppel, M.D.Colorado Springs, CO 809091043266463
- Daniel Valentino, M.D.Colorado Springs, CO 809091437305778
- Tiffany Willard, M.D.Colorado Springs, CO 809091396769436
- Laura Trujillo, M.D.Colorado Springs, CO 809071174900351
Common questions
What is Gregory Michael Day's NPI number?
Gregory Michael Day's National Provider Identifier (NPI) is 1295024370, issued on Mar 29, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Michael Day located?
The NPPES record lists a practice address at 1400 E Boulder St Ste 600, Colorado Springs, CO, 80909. Phone: (719) 364-6487. Providers update this record themselves, so call before visiting.
How can I verify Gregory Michael Day's license?
NPPES lists Colorado license number DR.0058888, 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.
What is Gregory Michael Day's MIPS final score?
The 2023 MIPS final score is 97.6 of 100. 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.