Marguerite Rose O'Farrell, M.D.
Emergency Medicine Physician · Englewood, CO
Marguerite Rose O'Farrell, M.D. is an emergency medicine physician with a practice address in Englewood, Colorado, and NPI 1407090251, issued on Apr 23, 2009. Check the license (Colorado DR. 0057859, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Marguerite Rose O'Farrell
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- DR. 0057859 CO
ME113502 FL
Self-reported in NPPES; status is on the state search - Practice location
- 501 E Hampden Ave, Englewood, CO 80113
- Phone
- (303) 788-5000
- Enumerated
- Apr 23, 2009
- Record last updated
- Dec 29, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 0059699-00 FL
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,434 in Colorado → Look up another NPI →
Also registered at 501 E Hampden Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Simeon Abramson, MDDiagnostic Radiology Physician1730129859
- Juan Acosta, MDInternal Medicine Physician1316919350
- Diane Ampe, NNPNeonatal Nurse Practitioner1437113818
- Kristin AndersonHospitalist Physician1265744262
- Rebekah Ashcraft, RNRegistered Nurse1700622479
- Timbre Backen, DOStudent in an Organized Health Care Education/Training Program1811524150
Verify Marguerite Rose O'Farrell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR. 0057859Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average emergency medicine physician in 2024
118 Medicare Part D claims for 76 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Ciprofloxacin Hcl13 claims
- Ibuprofen13 claims
- Azithromycin11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 91.7 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).
Marguerite Rose O'Farrell among 1,434 emergency medicine physician records in Colorado
Marguerite Rose O'Farrell, M.D. is one of 1,434 emergency medicine physician records with a practice address in Colorado. 77% 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 57% of them.
- NPI issued2009 · 57% of these records are older, 39% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2016 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
38 emergency medicine physician records list a practice address in Englewood
They are 38 of the 2,840 NPPES records with a practice address in Englewood, and 1,434 emergency medicine physician records in Colorado.
All 1,434 in Colorado → Every provider in Englewood → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Peter BakesEnglewood, CO 801131467435172
- Gregory BurchamEnglewood, CO 801131942283569
- Suzanne ChiltonEnglewood, CO 801131891778429
- Gretchen HinsonEnglewood, CO 801131962467357
- Christopher HolmesEnglewood, CO 801131336127679
- Delwin HuntEnglewood, CO 801131366428880
- Samuel KillianEnglewood, CO 801131447238365
- Mark KozlowskiEnglewood, CO 801131285610683
Common questions
What is Marguerite Rose O'Farrell, M.D.'s NPI number?
Marguerite Rose O'Farrell, M.D.'s National Provider Identifier (NPI) is 1407090251, issued on Apr 23, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Marguerite Rose O'Farrell, M.D. located?
The NPPES record lists a practice address at 501 E Hampden Ave, Englewood, CO, 80113. Phone: (303) 788-5000. Providers update this record themselves, so call before visiting.
How can I verify Marguerite Rose O'Farrell, M.D.'s license?
NPPES lists Colorado license number DR. 0057859, 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 Marguerite Rose O'Farrell, M.D. prescribe under Medicare Part D?
In 2024, Marguerite Rose O'Farrell, M.D. had 118 Medicare Part D claims for 76 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Marguerite Rose O'Farrell, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.7 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.