NPPES file of Aug 9, 2026

James Michael Corkum, M.D.

Gastroenterology Physician · Towson, MD

James Michael Corkum, M.D. is a gastroenterology physician with a practice address in Towson, Maryland, and NPI 1154387280, issued on Apr 26, 2006. Check the license (Maryland D34084, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1154387280
Name
James Michael Corkum
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
D34084 MD
Self-reported in NPPES; status is on the state search
Practice location
515 Fairmount Ave Ste 100A, Towson, MD 21286
Phone
(410) 494-1315
Enumerated
Apr 26, 2006
Record last updated
Nov 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(410) 584-2244
Medicaid ID
069571800 MD
Medicare enrollment
Enrolled (PECOS I20090804000703); accepts Medicare assignment
Medical or professional school
Johns Hopkins University School Of Medicine, 1985
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify James Michael Corkum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D34084
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

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56% fewer Medicare Part D claims than the average gastroenterology physician in 2024

354 Medicare Part D claims for 172 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. James Corkum354
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium117 claims
  2. Clenpiq42 claims
  3. Dicyclomine Hcl33 claims
  4. Famotidine23 claims
  5. Omeprazole15 claims
  6. Sucralfate15 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): 78.5 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.

  1. Qualityout of 100 · 30% of the final score80.4
  2. Costout of 100 · 30%64.7
  3. Promoting interoperabilityout of 100 · 25%80.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $509.80

25 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Corkum$509.80
  2. Specialty average$5,015.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Greater Baltimore Medical Center IncBaltimore, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

James Michael Corkum among 505 gastroenterology physician records in Maryland

James Michael Corkum, M.D. is one of 505 gastroenterology physician records with a practice address in Maryland. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.

  • NPI issued2006 · 16% of these records are older, 46% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1985 · median 2002 among the 344 with a school on file
  • Record last updated2020 · 61% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Maryland

There are 505 gastroenterology physician records in Maryland.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Marcia Canto, M.D.Baltimore, MD 212871992763015
  2. Mark Donowitz, M.D.Baltimore, MD 212871306893342
  3. Francis Giardiello, M.D.Baltimore, MD 212871437103645
  4. Michael Goggins, M.D.Baltimore, MD 212871861445983
  5. Mary Harris, M.D.Baltimore, MD 212871932159738
  6. Anthony Kalloo, M.D.Baltimore, MD 212871881638153
  7. Sergey Kantsevoy, M.D., PH.D.Baltimore, MD 212871912954181
  8. Zhiping Li, MDBaltimore, MD 212871548204944

Common questions

What is James Michael Corkum, M.D.'s NPI number?

James Michael Corkum, M.D.'s National Provider Identifier (NPI) is 1154387280, issued on Apr 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James Michael Corkum, M.D. located?

The NPPES record lists a practice address at 515 Fairmount Ave Ste 100A, Towson, MD, 21286. Phone: (410) 494-1315. Providers update this record themselves, so call before visiting.

How can I verify James Michael Corkum, M.D.'s license?

NPPES lists Maryland license number D34084, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does James Michael Corkum, M.D. prescribe under Medicare Part D?

In 2024, James Michael Corkum, M.D. had 354 Medicare Part D claims for 172 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is James Michael Corkum, M.D.'s MIPS final score?

The 2023 MIPS final score is 78.5 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.