Ada Margaret Gillis, MD
Family Medicine Physician · Englewood, CO
Ada Margaret Gillis, MD is a family medicine physician with a practice address in Englewood, Colorado, and NPI 1861626343, issued on May 12, 2009. Check the license (Colorado 054360, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ada Margaret Gillis
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 054360 CO
D0074238 MD
MT195073 PA
Self-reported in NPPES; status is on the state search - Practice location
- 2955 S Broadway, Englewood, CO 80113
- Phone
- (303) 338-4545
- Enumerated
- May 12, 2009
- Record last updated
- Jun 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 71786317 CO
- Medicare enrollment
- Enrolled (PECOS I20141114002113); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 2955 S Broadway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Julie AguilarInternal Medicine Physician1053448027
- Brent Arnold, MDInternal Medicine Physician1912034950
- Wendy Askelson, R.D., C.D.E.Registered Dietitian1346571957
- Amanda Bartholomew, M.D.Family Medicine Physician1598008195
- Della BennettFamily Medicine Physician1548765431
- Marietta BohnRegistered Nurse1770770505
Verify Ada Margaret Gillis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 054360Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average family medicine physician in 2024
3,218 Medicare Part D claims for 436 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 132 claims were for opioids.
Most prescribed
- Atorvastatin Calcium206 claims
- Levothyroxine Sodium182 claims
- Lisinopril127 claims
- Rosuvastatin Calcium111 claims
- Losartan Potassium96 claims
- Alendronate Sodium92 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
- Colorado Permanente Medical Group PCEnglewood, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ada Margaret Gillis among 3,563 family medicine physician records in Colorado
Ada Margaret Gillis, MD 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 2009, is newer than 62% of them.
- NPI issued2009 · 62% of these records are older, 36% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2009 · median 2008 among the 2,077 with a school on file
- Record last updated2021 · 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).
46 family medicine physician records list a practice address in Englewood
They are 46 of the 2,840 NPPES records with a practice address in Englewood, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Englewood → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Todd Avant, MDEnglewood, CO 801131659363240
- Leah Cooper, MDEnglewood, CO 801131740288968
- Marija Dubrick, M.D.Englewood, CO 801131992738363
- Cynthia Egan, D.O.Englewood, CO 801131598826158
- Kate Frueh Miller, DOEnglewood, CO 801131487700092
- Felipe Hernandez, M.D.Englewood, CO 801131578616249
- Kerry Higgins, M.D.Englewood, CO 801131700847688
- Daniel Hubbard, MDEnglewood, CO 801131023000619
Common questions
What is Ada Margaret Gillis, MD's NPI number?
Ada Margaret Gillis, MD's National Provider Identifier (NPI) is 1861626343, issued on May 12, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Ada Margaret Gillis, MD located?
The NPPES record lists a practice address at 2955 S Broadway, Englewood, CO, 80113. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.
How can I verify Ada Margaret Gillis, MD's license?
NPPES lists Colorado license number 054360, 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 Ada Margaret Gillis, MD prescribe under Medicare Part D?
In 2024, Ada Margaret Gillis, MD had 3,218 Medicare Part D claims for 436 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.