DR. JASON D MATTHEWS M.D.
NPI 1841404787
Internal Medicine - Gastroenterology in Flemington, NJ

Q: What is Jason Matthews's NPI number?

The NPI number for Jason Matthews is 1841404787. It was assigned to this individual provider in the NPPES registry on May 10, 2007.

Q: What is Jason Matthews's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Jason Matthews was last updated on September 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since May 10, 2007PECOS EnrolledAccepts Medicare Assignment

92.18/100

CMS Quality Rating

1100 WESCOTT DR, FLEMINGTON, NJ 08822(908) 788-6448 Get Directions Write a Review

NPPES record last updated: September 9, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Jason D Matthews M.d. NPPES

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

DR. JASON D MATTHEWS M.D. (NPI 1841404787) is an individual gastroenterology provider in Flemington, New Jersey, licensed in California (A86571) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with Hunterdon Medical Center, and is a graduate of Other (2000).

NPPES Registry Identity

NPI1841404787

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameDR. JASON D MATTHEWSCredential: M.D.

Location Address1100 WESCOTT DRFlemington, NJ 08822-4600

Mailing Address1100 Wescott Dr Ste 206Flemington, NJ 08822-4600 · (908) 788-6448 · Fax (908) 788-5090

Phone(908) 788-6448

Sole ProprietorNo

Medical School CMSOtherGraduated 2000

Enumeration DateMay 10, 2007

Last NPPES UpdateSeptember 9, 2020

NPPES CertifiedSeptember 9, 2020

✔ NPI 1841404787 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in CA · A86571

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.

1100 WESCOTT DR, Flemington, NJ 08822

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Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Jason D Matthews M.d. 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 ID3779671359

PECOS Enrollment IDI20071115000132

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.

Medicare Billing Reassignment

Medicare enrollment records show Jason Matthews reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hunterdon Gastroenterology Associates, PA

Same address

Specialist

1100 WESCOTT DR, SUITE 206
Flemington, NJ 08822

Reassigned Medicare billing, New Jersey enrollment
14 clinicians in this Medicare group

NPI 1285663864 (908) 788-6448

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 12

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.

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

181 services177 patients

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.

169 services140 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

89 services88 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.

81 services80 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

72 services72 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.

36 services36 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

34 services34 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.

30 services18 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

25 services25 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

21 services21 patients

Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes 99153

This service involves a physician administering medication to lower your consciousness during a procedure. It's done for your comfort and safety. The drug's effects last about 15 minutes, so additional doses may be given as needed.

21 services20 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.

18 services18 patients

Hospital Affiliations CMS Care Compare

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

Hunterdon Medical Center

Acute Care Hospitals · Flemington, NJ

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310005

Location2100 Wescott DriveFlemington, NJ 08822 · Hunterdon County

Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08822 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.

92.18/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

98.45

Promoting Interoperability

100

Improvement Activities

Cost

75.5

Other Providers at the Same Location NPPES 20

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

DR. JEFFREY D HARTFORD M.D.

Internal Medicine (Gastroenterology)

1100 WESCOTT DR, SUITE 201
FLEMINGTON, NJ 08822

Hunterdon County (908) 788-6504

HUNTERDON SURGICAL ASSOCIATES, PA

Surgery (Vascular Surgery)

1100 WESCOTT DR, STE 302
FLEMINGTON, NJ 08822

Hunterdon County (908) 788-6464

PULMONARY AND SLEEP ASSOCIATES OF HUNTERDON COUNTY LLC

Internal Medicine (Pulmonary Disease)

1100 WESCOTT DR, SUITE G2
FLEMINGTON, NJ 08822

Hunterdon County (908) 892-1211

HUNTERDON MEDICAL CENTER

Dermatology

1100 WESCOTT DR, SUITE G1
FLEMINGTON, NJ 08822

Hunterdon County (908) 284-1125

LISA PLUNKETT MD

Family Medicine

1100 WESCOTT DR, SUITE 101
FLEMINGTON, NJ 08822

Hunterdon County (908) 788-6535

DR. MAMIE SUE BOWERS MD

Obstetrics & Gynecology

1100 WESCOTT DR, SUITE 105
FLEMINGTON, NJ 08822

Hunterdon County (908) 788-6469

DR. RICHARD M. GENERSON DMD

Dentist (Oral and Maxillofacial Surgery)

1100 WESCOTT DR, SUITE 108
FLEMINGTON, NJ 08822

Hunterdon County (908) 788-7475

DR. JOHN J BELLO MD

Surgery

1100 WESCOTT DR, STE 302
FLEMINGTON, NJ 08822

Hunterdon County (908) 788-6465

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 Jason Matthews's NPI number?

The NPI number for Jason Matthews is 1841404787. It was assigned to this individual provider in the NPPES registry on May 10, 2007.

Where is Jason Matthews located?

Jason Matthews practices at 1100 Wescott Dr, Flemington, NJ 08822. The listed phone number is (908) 788-6448.

What is Jason Matthews's specialty?

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

Is Jason Matthews enrolled in Medicare?

Yes. Jason Matthews 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.

Which organization bills Medicare for Jason Matthews's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jason Matthews reassigns Medicare benefits to Hunterdon Gastroenterology Associates, PA (Flemington, NJ). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jason Matthews's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jason Matthews accept?

Health plans from Oscar Health list Jason Matthews 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 Jason Matthews affiliated with any hospitals?

According to CMS data, Jason Matthews is affiliated with Hunterdon Medical Center.

When was this NPI record last updated?

The NPPES record for Jason Matthews was last updated on September 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.