Dennis Han, M.D.
Gastroenterology Physician · Florham Park, NJ
Dennis Han, M.D. is a gastroenterology physician with a practice address in Florham Park, New Jersey, and NPI 1881956050, issued on Jun 13, 2012. Check the license (New Jersey 25MA10552600, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Dennis Han
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 25MA10552600 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 140 Park Ave, Florham Park, NJ 07932
- Phone
- (973) 404-9700
- Enumerated
- Jun 13, 2012
- Record last updated
- Apr 29, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190802000016); accepts Medicare assignment
- 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 Dennis Han 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 25MA10552600Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% more Medicare Part D claims than the average gastroenterology physician in 2024
1,140 Medicare Part D claims for 363 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole308 claims
- Pantoprazole Sodium176 claims
- Famotidine97 claims
- Sutab51 claims
- Sod Sulf-Potass Sulf-Mag Sulf46 claims
- Mesalamine42 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 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).
Dennis Han among 735 gastroenterology physician records in New Jersey
Dennis Han, 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 2012, is newer than 78% of them.
- NPI issued2012 · 78% of these records are older, 20% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2012 · median 2000 among the 564 with a school on file
- Record last updated2019 · 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
- John Dalena, M.D.Florham Park, NJ 079321215944582
- Isaac Galandauer, M.D.Florham Park, NJ 079321356543276
- 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 Dennis Han, M.D.'s NPI number?
Dennis Han, M.D.'s National Provider Identifier (NPI) is 1881956050, issued on Jun 13, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Dennis Han, M.D. located?
The NPPES record lists a practice address at 140 Park Ave, Florham Park, NJ, 07932. Phone: (973) 404-9700. Providers update this record themselves, so call before visiting.
How can I verify Dennis Han, M.D.'s license?
NPPES lists New Jersey license number 25MA10552600, 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 Dennis Han, M.D. prescribe under Medicare Part D?
In 2024, Dennis Han, M.D. had 1,140 Medicare Part D claims for 363 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.