DR. THOMAS A ROCKOFF MD
NPI 1356313944
Internal Medicine - Gastroenterology in Prospect, CT

Q: What is Thomas Rockoff's NPI number?

The NPI number for Thomas Rockoff is 1356313944. It was assigned to this individual provider in the NPPES registry on February 7, 2006.

Q: What is Thomas Rockoff'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 Thomas Rockoff was last updated on April 27, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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 February 07, 2006PECOS EnrolledAccepts Medicare Assignment

82.81/100

CMS Quality Rating

166 WATERBURY RD STE 104, PROSPECT, CT 06712(203) 756-6722(203) 756-2448 Get Directions Write a Review

NPPES record last updated: April 27, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Thomas A Rockoff Md NPPES

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

DR. THOMAS A ROCKOFF MD (NPI 1356313944) is an individual gastroenterology provider in Prospect, Connecticut, licensed in Connecticut (039233) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of Rutgers New Jersey Medical School (1995).

NPPES Registry Identity

NPI1356313944

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. THOMAS A ROCKOFFCredential: MD

Location Address166 WATERBURY RD STE 104Prospect, CT 06712-1246

Mailing Address1312 West Main Street, Suite 101Waterbury, CT 06708 · (203) 756-6722 · Fax (203) 756-2448

Phone(203) 756-6722

Fax(203) 756-2448

Sole ProprietorNo

Medical School CMSRutgers New Jersey Medical SchoolGraduated 1995

Enumeration DateFebruary 7, 2006

Last NPPES UpdateApril 27, 2018

✔ NPI 1356313944 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 CT · 039233

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.

166 WATERBURY RD STE 104, Prospect, CT 06712

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Other Identifiers 1

Medicaid001392331CT

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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. Thomas A Rockoff 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 ID3971586694

PECOS Enrollment IDI20040611001019

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 Reassignments

Medicare enrollment records show Thomas Rockoff reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Naugatuck Valley Endoscopy Center, LLC

4.0 mi

Ambulatory Surgical

1312 WEST MAIN ST
Waterbury, CT 06708

Reassigned Medicare billing, Connecticut enrollment
3 clinicians in this Medicare group

NPI 1043283906 (203) 756-6422

Connecticut Gi PLLC

23 mi

Gastroenterology

85 SEYMOUR ST, 1000
Hartford, CT 06106

Reassigned Medicare billing, Connecticut enrollment
417 clinicians in this Medicare group

NPI 1023124625 (860) 246-2571

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 15

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 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.

116 services109 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.

90 services89 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.

77 services77 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.

63 services63 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

52 services52 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.

45 services45 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.

41 services39 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.

40 services39 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.

39 services39 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

32 services32 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.

32 services32 patients

Ultrasound scan of organ tissue for measuring elasticity 76981

An ultrasound scan of organ tissue measures elasticity, or flexibility. This non-invasive procedure uses sound waves to create images of the inside of your body. It helps in assessing the health of various organs by detecting changes in their stiffness or softness.

15 services15 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.

15 services14 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

14 services14 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.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06712 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.

82.81/100

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

Individually scored

Quality

64.2

Improvement Activities

Cost

80.16

Reported Quality Measures

Colorectal Cancer Screening

69%719 patients4/55-star benchmark: 88%

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)

Lower rates are better for this measure.

99%146 patients1/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

98%1,296 patients4/55-star benchmark: 100%

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

73%441 patients3/55-star benchmark: 91%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 0% · 546 patients

Patients totalRate: 4% · 546 patients

3%546 patients4/55-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 3

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

JESSICA MAGDALENA PELLETIER

Physician Assistant

166 WATERBURY RD STE 104
PROSPECT, CT 06712

Naugatuck Valley Planning Region (203) 756-6422

DR. ANTHONY N. SCHORE M.D.

Internal Medicine (Gastroenterology)

166 WATERBURY RD STE 104
PROSPECT, CT 06712

Naugatuck Valley Planning Region (203) 756-6422

SARA MARIE MICELI PA-C

Physician Assistant

166 WATERBURY RD STE 104
PROSPECT, CT 06712

Naugatuck Valley Planning Region (203) 756-6422

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 Thomas Rockoff's NPI number?

The NPI number for Thomas Rockoff is 1356313944. It was assigned to this individual provider in the NPPES registry on February 7, 2006.

Where is Thomas Rockoff located?

Thomas Rockoff practices at 166 Waterbury Rd Ste 104, Prospect, CT 06712. The listed phone number is (203) 756-6722.

What is Thomas Rockoff's specialty?

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

Is Thomas Rockoff enrolled in Medicare?

Yes. Thomas Rockoff 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 organizations bill Medicare for Thomas Rockoff's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Rockoff reassigns Medicare benefits to 2 organizations: Naugatuck Valley Endoscopy Center, LLC (Waterbury, CT) and Connecticut Gi PLLC (Hartford, CT). Each 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 Thomas Rockoff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Thomas Rockoff accept?

Health plans from Anthem Blue Cross and Blue Shield list Thomas Rockoff 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.

When was this NPI record last updated?

The NPPES record for Thomas Rockoff was last updated on April 27, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.