Kathleen Elizabeth Corey, MD
Gastroenterology Physician · Boston, MA
Kathleen Elizabeth Corey, MD is a gastroenterology physician with a practice address in Boston, Massachusetts, and NPI 1326174038, issued on Feb 26, 2007. Check the license (Massachusetts P-226977, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Kathleen Elizabeth Corey
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- P-226977 MA
Self-reported in NPPES; status is on the state search - Practice location
- Massachusetts General Hospital, Boston, MA 02114
- Phone
- (617) 724-6113
- Enumerated
- Feb 26, 2007
- Record last updated
- Jul 18, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070607000440); accepts Medicare assignment
- Medical or professional school
- Duke University School Of Medicine, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Also registered at Massachusetts General Hospital
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathleen Elizabeth Corey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license P-226977Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average gastroenterology physician in 2024
256 Medicare Part D claims for 88 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Gavilyte-G41 claims
- Xifaxan27 claims
- Omeprazole25 claims
- Ursodiol24 claims
- Rezdiffra18 claims
- Spironolactone16 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 2 group practices
- Massachusetts General Physicians Organization IncBoston, MA
- The General Hospital CorporationBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathleen Elizabeth Corey among 686 gastroenterology physician records in Massachusetts
Kathleen Elizabeth Corey, MD is one of 686 gastroenterology physician records with a practice address in Massachusetts. 80% 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 51% of them.
- NPI issued2007 · 51% of these records are older, 40% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2003 · median 2004 among the 491 with a school on file
- Record last updated2012 · 66% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Massachusetts
There are 686 gastroenterology physician records in Massachusetts.
All 686 in Massachusetts → Every provider in Boston → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Diane Abraczinskas, MDBoston, MA 021141811988488
- Karin Andersson, MDBoston, MA 021141972585511
- Bernard Aserkoff, MDBoston, MA 021141851381123
- Cheryl Bunker, MDBoston, MA 021141952384752
- Andrew Chan, M.D.Boston, MA 021141982600144
- Raymond Chung, MDBoston, MA 021141154311769
- Daniel Chung, MDBoston, MA 021141710978994
- Peter Kelsey, MDBoston, MA 021141255313383
Common questions
What is Kathleen Elizabeth Corey, MD's NPI number?
Kathleen Elizabeth Corey, MD's National Provider Identifier (NPI) is 1326174038, issued on Feb 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen Elizabeth Corey, MD located?
The NPPES record lists a practice address at Massachusetts General Hospital, Boston, MA, 02114. Phone: (617) 724-6113. Providers update this record themselves, so call before visiting.
How can I verify Kathleen Elizabeth Corey, MD's license?
NPPES lists Massachusetts license number P-226977, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kathleen Elizabeth Corey, MD prescribe under Medicare Part D?
In 2024, Kathleen Elizabeth Corey, MD had 256 Medicare Part D claims for 88 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.