Michael Frank Demyen, MD
Gastroenterology Physician · Denville, NJ
Michael Frank Demyen, MD is a gastroenterology physician with a practice address in Denville, New Jersey, and NPI 1568611465, issued on Sep 16, 2008. Check the license (New Jersey 25MA07864700, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Michael Frank Demyen
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 25MA07864700 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 16 Pocono Road, Denville, NJ 07834
- Phone
- (973) 627-4430
- Enumerated
- Sep 16, 2008
- Record last updated
- Jul 21, 2022
- Fax
- (973) 586-2336
- Medicaid ID
- 019905 NJ
- Medicare enrollment
- Enrolled (PECOS I20090511000261); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 735 in New Jersey → Look up another NPI →
Also registered at 16 Pocono Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Collum, MDInternal Medicine Physician1912941899
- Robert Graffeo, DDSDentist1467660324
- Seth Levy, MDInternal Medicine Physician1316980782
- Alan Mufson, MDInternal Medicine Physician1134162506
- Michael Nicolai, MDInternal Medicine Physician1144264029
- Harvey Nisselson, DDSPeriodontics1578754719
Verify Michael Frank Demyen 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 25MA07864700Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% more Medicare Part D claims than the average gastroenterology physician in 2024
1,134 Medicare Part D claims for 392 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium217 claims
- Linzess131 claims
- Omeprazole110 claims
- Gavilyte-G101 claims
- Famotidine65 claims
- Creon61 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 MIPS final score for 2023 (Medicare payment program): 95 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: $1,271.39
71 payments; by number, the most common kind was food and beverage; the largest payer was Ironwood Pharmaceuticals, 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
- Medical Associates OF Englewood PCTenafly, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Frank Demyen among 735 gastroenterology physician records in New Jersey
Michael Frank Demyen, MD 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 2008, is newer than 65% of them.
- NPI issued2008 · 65% of these records are older, 29% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2000 · median 2000 among the 564 with a school on file
- Record last updated2022 · 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).
Gastroenterology Physician providers in New Jersey
There are 735 gastroenterology physician records in New Jersey.
All 735 in New Jersey → Every provider in Denville → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Peter Heit, M.D.Denville, NJ 078341912952763
- John Soriano, MDDenville, NJ 078341861472292
- Christopher Soriano, M.D.Denville, NJ 078341255795365
- Srinivas Madane, M.D.Newton, NJ 078601750305835
- Nicholas Albicocco, M.D.Mine Hill, NJ 078031447274766
- Tarun Sharma, MDMine Hill, NJ 078031033138029
- Christopher Tait, M.D.Rockaway, NJ 078661083064224
- Barry Benerofe, M.D.Dover, NJ 078011841227360
Common questions
What is Michael Frank Demyen, MD's NPI number?
Michael Frank Demyen, MD's National Provider Identifier (NPI) is 1568611465, issued on Sep 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Michael Frank Demyen, MD located?
The NPPES record lists a practice address at 16 Pocono Road, Denville, NJ, 07834. Phone: (973) 627-4430. Providers update this record themselves, so call before visiting.
How can I verify Michael Frank Demyen, MD's license?
NPPES lists New Jersey license number 25MA07864700, 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 Michael Frank Demyen, MD prescribe under Medicare Part D?
In 2024, Michael Frank Demyen, MD had 1,134 Medicare Part D claims for 392 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Michael Frank Demyen, MD's MIPS final score?
The 2023 MIPS final score is 95 of 100. 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.