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DR. MICHAEL FRANK DEMYEN MD
NPI 1568611465
Internal Medicine - Gastroenterology in Denville, NJ

Active since September 16, 2008PECOS EnrolledAccepts Medicare Assignment
94.95/100
CMS Quality Rating
16 POCONO ROAD, SUITE 201, DENVILLE, NJ 07834(973) 627-4430(973) 586-2336 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 21, 2022, Mar 20, 2020, Jul 7, 2017 and 1 more (4 updates tracked since 2017).

About Dr. Michael Frank Demyen Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MICHAEL FRANK DEMYEN MD (NPI 1568611465) is an individual gastroenterology provider in Denville, New Jersey, licensed in New Jersey (25MA07864700) and active in the NPI registry since September 2008. He is enrolled in Medicare PECOS, is affiliated with Englewood Hospital And Medical Center, and is a graduate of Other (2000).

NPPES Registry Identity

NPI1568611465
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. MICHAEL FRANK DEMYENCredential: MD
Location Address16 POCONO ROAD, SUITE 201Denville, NJ 07834-2901
Mailing Address16 Pocono Road, Suite 201Denville, NJ 07834-2901 · (973) 627-4430 · Fax (973) 586-2336
Phone(973) 627-4430
Fax(973) 586-2336
Sole ProprietorNo
Medical School CMSOtherGraduated 2000
Enumeration DateSeptember 16, 2008
Last NPPES UpdateJuly 21, 20224 updates tracked since enumeration
NPPES CertifiedMarch 20, 2020
✔ NPI 1568611465 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in NJ · 25MA07864700
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedInternal MedicineTaxonomy 207R00000X · License 25MA07864700 (NJ)
16 POCONO ROAD, Denville, NJ 07834
Open in Google Maps ↗

Other Identifiers 1

Medicaid019905NJ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Michael Frank Demyen Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9537217062
PECOS Enrollment IDI20090511000261
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
84 services71 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
75 services46 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
47 services47 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
43 services42 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
32 services32 patients
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121
Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.
20 services19 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Englewood Hospital And Medical Center

Acute Care Hospitals · Englewood, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310045
Location350 Engle StEnglewood, NJ 07631 · Bergen County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07834 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$144.86 typical visit price
range $63.84 – $190.92
Typical copayment $36.21 (range $15.96 – $47.73)
Most-billed visit code 99204
Established Patient
$111.57 typical visit price
range $20.97 – $155.92
Typical copayment $27.89 (range $5.24 – $38.98)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.95/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality87.26
Promoting Interoperability100
Improvement Activities40

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
44%592 patients2/55-star benchmark: 100%
Colorectal Cancer Screening
Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer
74%154 patients3/55-star benchmark: 100%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
58%297 patients3/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ALAN S MUFSON MD
Internal Medicine
16 POCONO ROAD, SUITE 317
DENVILLE, NJ 07834
Morris County (973) 627-2650
MICHAEL NICOLAI MD
Internal Medicine
16 POCONO ROAD, SUITE 317
DENVILLE, NJ 07834
Morris County (973) 627-2650
DENVILLE ASSOCIATES OF INTERNAL MEDICINE PA
Internal Medicine
16 POCONO ROAD, SUITE 317
DENVILLE, NJ 07834
Morris County (973) 627-2650
SETH E LEVY MD
Internal Medicine
16 POCONO ROAD, SUITE 317
DENVILLE, NJ 07834
Morris County (973) 627-2650
DR. ROBERT GRAFFEO DDS
Dentist
16 POCONO ROAD
DENVILLE, NJ 07834
Morris County (973) 627-1220
DR. HARVEY SCOTT NISSELSON DDS
Dentist (Periodontics)
16 POCONO ROAD, SUITE 213
DENVILLE, NJ 07834
Morris County (973) 219-1700
DENVILLE CARDIOLOGY ASSOCIATES
Internal Medicine
16 POCONO ROAD, SUITE 316
DENVILLE, NJ 07834
Morris County (973) 627-3217
ROBERT G COLLUM MD
Internal Medicine
16 POCONO ROAD, SUITE 317
DENVILLE, NJ 07834
Morris County (973) 627-2650

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Michael Demyen's NPI number?

The NPI number for Michael Demyen is 1568611465. It was assigned to this individual provider in the NPPES registry on September 16, 2008.

Where is Michael Demyen located?

Michael Demyen practices at 16 Pocono Road Suite 201, Denville, NJ 07834. The listed phone number is (973) 627-4430.

What is Michael Demyen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Michael Demyen enrolled in Medicare?

Yes. Michael Demyen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Michael Demyen accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Michael Demyen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Michael Demyen affiliated with any hospitals?

According to CMS data, Michael Demyen is affiliated with Englewood Hospital And Medical Center.

When was this NPI record last updated?

The NPPES record for Michael Demyen was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.