John Michael Dalena, M.D.
Gastroenterology Physician · Florham Park, NJ
John Michael Dalena, M.D. is a gastroenterology physician with a practice address in Florham Park, New Jersey, and NPI 1215944582, issued on Aug 1, 2006. Check the license (New Jersey 25MA04903700, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- John Michael Dalena
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 25MA04903700 NJ
MA049037 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 140 Park Ave, Florham Park, NJ 07932
- Phone
- (973) 401-0500
- Enumerated
- Aug 1, 2006
- Record last updated
- Apr 24, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (973) 401-9306
- Medicare enrollment
- Enrolled (PECOS I20041102001075); accepts Medicare assignment
- Medical or professional school
- Rutgers New Jersey Medical School, 1985
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 735 in New Jersey → Look up another NPI →
Also registered at 140 Park Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Michael Dalena in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA04903700Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average gastroenterology physician in 2024
1,850 Medicare Part D claims for 882 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf535 claims
- Pantoprazole Sodium237 claims
- Omeprazole187 claims
- Mesalamine79 claims
- Esomeprazole Magnesium78 claims
- Famotidine74 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.
Industry payments in 2024: $1,391.68
83 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.
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
- Summit Medical Group PABerkeley Heights, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Michael Dalena among 735 gastroenterology physician records in New Jersey
John Michael Dalena, M.D. is one of 735 gastroenterology physician records with a practice address in New Jersey. 89% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 44% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1985 · median 2000 among the 564 with a school on file
- Record last updated2018 · 54% 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 New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 gastroenterology physician records list a practice address in Florham Park
They are 7 of the 701 NPPES records with a practice address in Florham Park, and 735 gastroenterology physician records in New Jersey.
All 735 in New Jersey → Every provider in Florham Park → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Darren Blumberg, M.D.Florham Park, NJ 079321902813272
- Konika Bose, MDFlorham Park, NJ 079321336470228
- Isaac Galandauer, M.D.Florham Park, NJ 079321356543276
- Dennis Han, M.D.Florham Park, NJ 079321881956050
- Kelly Krueger, M.D.Florham Park, NJ 079321861663528
- Kanaga Sundaram, MDFlorham Park, NJ 079321922151935
- John Franzese, M.D.Chatham, NJ 079281053390104
- Adam Barrison, MDBerkeley Heights, NJ 079221669473328
Common questions
What is John Michael Dalena, M.D.'s NPI number?
John Michael Dalena, M.D.'s National Provider Identifier (NPI) is 1215944582, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Michael Dalena, M.D. located?
The NPPES record lists a practice address at 140 Park Ave, Florham Park, NJ, 07932. Phone: (973) 401-0500. Providers update this record themselves, so call before visiting.
How can I verify John Michael Dalena, M.D.'s license?
NPPES lists New Jersey license number 25MA04903700, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Michael Dalena, M.D. prescribe under Medicare Part D?
In 2024, John Michael Dalena, M.D. had 1,850 Medicare Part D claims for 882 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.