DR. MICHAEL Y CHOI MD
NPI 1922083344
Internal Medicine - Gastroenterology in Worcester, MA

Active since December 08, 2005PECOS EnrolledAccepts Medicare Assignment
97.02/100
CMS Quality Rating
21 EASTERN AVE, WORCESTER, MA 01605(508) 334-8419 Get Directions Write a Review

NPPES record last updated: June 24, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Michael Y Choi Md NPPES

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

DR. MICHAEL Y CHOI MD (NPI 1922083344) is an individual gastroenterology provider in Worcester, Massachusetts, licensed in Massachusetts (217235) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Mid Coast Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1922083344
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. MICHAEL Y CHOICredential: MD
Location Address21 EASTERN AVEWorcester, MA 01605-3094
Mailing AddressPo Box 415348Boston, MA 02241-5348 · (800) 225-8885 · Fax (508) 334-1977
Sole ProprietorNo
Medical School CMSOtherGraduated 1997
Enumeration DateDecember 8, 2005
Last NPPES UpdateJune 24, 2026
NPPES CertifiedJune 24, 2026
NPI 1922083344 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses Licensed in MA · 217235 Licensed in ME · MD18573
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.
21 EASTERN AVE, Worcester, MA 01605

Secondary Practice Locations 3

Location 1157 Union StMarlborough, MA 01752-1228 · Phone (508) 481-5000
Location 2121 Medical Center Dr Ste 3400Brunswick, ME 04011-2675 · Phone (207) 406-7300 · Fax (207) 835-4736
Location 328 Newton StSouthborough, MA 01772-1215 · Phone (508) 334-3068

Other Identifiers 1

Medicaid110034766AMA

Accepted 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 Y Choi 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 ID8820281413
PECOS Enrollment IDI20240606003810
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

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.

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.
20 services20 patients

Hospital Affiliations CMS Care Compare 2

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

Mid Coast Hospital

Acute Care Hospitals · Brunswick, ME
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number200021
Location123 Medical Center DriveBrunswick, ME 04011 · Cumberland County
Emergency services Birthing friendly

Exeter Hospital Inc

Acute Care Hospitals · Exeter, NH
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300023
Location5 Alumni DriveExeter, NH 03833 · Rockingham County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01605 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
$134.47 typical visit price
range $58.86 – $177.36
Typical copayment $33.61 (range $14.71 – $44.34)
Most-billed visit code 99204
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
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.

97.02/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality78.09
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 4

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

Surgery (Vascular Surgery)
21 EASTERN AVE, FL 3
WORCESTER, MA 01605
General Practice
21 EASTERN AVE
WORCESTER, MA 01605
Nurse Practitioner (Acute Care)
21 EASTERN AVE
WORCESTER, MA 01605
Clinic/Center (Endoscopy)
21 EASTERN AVE
WORCESTER, MA 01605

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 Choi's NPI number?

The NPI number for Michael Choi is 1922083344. It was assigned to this individual provider in the NPPES registry on December 8, 2005.

Where is Michael Choi located?

Michael Choi practices at 21 Eastern Ave, Worcester, MA 01605. The listed phone number is (508) 334-8419.

What is Michael Choi's specialty?

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

Is Michael Choi enrolled in Medicare?

Yes. Michael Choi 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 Choi accept?

Health plans from Harvard Pilgrim Health Care and WellSense Health Plan list Michael Choi 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 Choi affiliated with any hospitals?

According to CMS data, Michael Choi is affiliated with Mid Coast Hospital and Exeter Hospital Inc.

When was this NPI record last updated?

The NPPES record for Michael Choi was last updated on June 24, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.