1. Home
  2. Directory
  3. Connecticut
  4. Danbury
  5. Internal Medicine
  6. NPI Profile

DR. CLIFFORD APPEL M.D.
NPI 1366436065
Internal Medicine - Gastroenterology in Danbury, CT

Active since September 08, 2005PECOS EnrolledAccepts Medicare Assignment
94.24/100
CMS Quality Rating
111 OSBORNE ST, SUITE 121, DANBURY, CT 06810(203) 739-7038 Get Directions Write a Review

NPPES record last updated: August 6, 2013. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Clifford Appel M.d. NPPES

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

DR. CLIFFORD APPEL M.D. (NPI 1366436065) is an individual gastroenterology provider in Danbury, Connecticut, licensed in Connecticut (27415) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS and is a graduate of Icahn School Of Medicine At Mount Sinai (1980).

NPPES Registry Identity

NPI1366436065
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. CLIFFORD APPELCredential: M.D.
Location Address111 OSBORNE ST, SUITE 121Danbury, CT 06810-6000
Mailing Address111 Osborne St, Suite 121Danbury, CT 06810-6000 · (203) 739-7038
Phone(203) 739-7038
Sole ProprietorNo
Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 1980
Enumeration DateSeptember 8, 2005
Last NPPES UpdateAugust 6, 2013
✔ NPI 1366436065 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 CT · 27415
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 ListedSpecialistTaxonomy 174400000X · License 27415 (CT)
111 OSBORNE ST, Danbury, CT 06810
Open in Google Maps ↗

Other Identifiers 3

Medicare UPINB38782CT
Medicaid001274159CT
Medicare ID-Type Unspecified100000151CT

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. Clifford Appel 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 ID8325947716
PECOS Enrollment IDI20110416000002
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 7

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.
147 services101 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.
61 services61 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.
39 services39 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.
39 services35 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.
35 services35 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.
23 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06810 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
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
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.

94.24/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality78.26
Promoting Interoperability100
Improvement Activities40

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. DANIEL KLEINER MD
Surgery (Surgical Oncology)
111 OSBORNE ST
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7131
HEATH WALDEN M.D.
Surgery (Surgical Critical Care)
111 OSBORNE ST
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7131
RAYMOND RAUT M.D.
Internal Medicine (Nephrology)
111 OSBORNE ST, SUITE 210
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7104
JEFFREY SCHMIERER M.D.
Internal Medicine (Cardiovascular Disease)
111 OSBORNE ST, 3RD FLOOR
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7155
STEVEN L BRANDWEIN M.D.
Internal Medicine (Gastroenterology)
111 OSBORNE ST
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7038
DR. KRISHAN PATEL MD FACS
Surgery (Trauma Surgery)
111 OSBORNE ST
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7131
MRS. CHARLENE MICHELE DELUCA MS, RD, CDN
Dietitian, Registered
111 OSBORNE ST
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7119
MRS. MIKELANNE CHRISTINE PHANEUF R.D.
Dietitian, Registered
111 OSBORNE ST, MEDICAL ARTS CENTER, 2ND FLOOR
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7131

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 Clifford Appel's NPI number?

The NPI number for Clifford Appel is 1366436065. It was assigned to this individual provider in the NPPES registry on September 8, 2005.

Where is Clifford Appel located?

Clifford Appel practices at 111 Osborne St Suite 121, Danbury, CT 06810. The listed phone number is (203) 739-7038.

What is Clifford Appel's specialty?

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

Is Clifford Appel enrolled in Medicare?

Yes. Clifford Appel 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.

When was this NPI record last updated?

The NPPES record for Clifford Appel was last updated on August 6, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.