Miechelle O'Brien, M.D.
Gastroenterology Physician · Danbury, CT
Miechelle O'Brien, M.D. is a gastroenterology physician with a practice address in Danbury, Connecticut, and NPI 1356582571, issued on Mar 18, 2009. Check the license (Connecticut 047450, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Miechelle O'Brien
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 047450 CT
Self-reported in NPPES; status is on the state search - Practice location
- 111 Osborne Street- Ste 121, Danbury, CT 06810
- Phone
- (203) 739-7010
- Enumerated
- Mar 18, 2009
- Entity
- Type 1 · individual
Verify Miechelle O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 047450Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
39% fewer Medicare Part D claims than the average gastroenterology physician in 2024
516 Medicare Part D claims for 184 beneficiaries, against an average of 848 among the 13,066 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole102 claims
- Pantoprazole Sodium69 claims
- Famotidine59 claims
- Peg 3350-Electrolyte46 claims
- Linzess27 claims
- Dexlansoprazole Dr13 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 Medicare quality score for 2023: 94.2 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).
Industry payments in 2024: $125.00
1 payment, mostly food and beverage; the largest payer was Abbvie Inc.. The 10,593 providers of this specialty with any payment received $4,948.62 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Nuvance Health Medical Practice CT IncDanbury, CT
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Gastroenterology Physician providers in Connecticut
There are 280 gastroenterology physician records in Connecticut.
Other gastroenterology physician records in Connecticut
- Abera Abay, M.D.Norwich, CT1861489585
- Clara Abraham, MDNew Haven, CT1629139456
- Charles Adelmann, M.D.Norwalk, CT1861436511
- Anant Agarwalla, M.D.Wallingford, CT1326458589
- Badr Al Bawardy, MDNew Haven, CT1104111509
- Jamil Alexis, MDStamford, CT1164927968
- Rabab Oun Ali Anwar Ali, MBBSNew Haven, CT1124580949
- Pietro Andres, M.D.Stratford, CT1588607386
- Catiele Antunes, M.D.New Haven, CT1508205204
- Harry Aslanian, MDNew Haven, CT1295718401
Common questions
What is Miechelle O'Brien, M.D.'s NPI number?
Miechelle O'Brien, M.D.'s National Provider Identifier (NPI) is 1356582571, issued on Mar 18, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Miechelle O'Brien, M.D. located?
The NPPES record lists a practice address at 111 Osborne Street- Ste 121, Danbury, CT, 06810. Phone: (203) 739-7010. Providers update this record themselves, so call before visiting.
How can I verify Miechelle O'Brien, M.D.'s license?
NPPES lists Connecticut license number 047450, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Miechelle O'Brien, M.D. prescribe under Medicare Part D?
In 2024, Miechelle O'Brien, M.D. had 516 Medicare Part D claims for 184 beneficiaries; the average among gastroenterology physician prescribers was 848. Part D covers Medicare prescriptions only.
What is Miechelle O'Brien, M.D.'s Medicare quality score?
The 2023 MIPS final score is 94.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.