GIAC CHAN NGUYEN TAN M.D.
NPI 1962585042
Internal Medicine in Waterbury, CT

Active since October 23, 2006PECOS EnrolledAccepts Medicare Assignment
92.61/100
CMS Quality Rating
171 GRANDVIEW AVE, STE 105, WATERBURY, CT 06708(203) 694-8200 Get Directions Write a Review

NPPES record last updated: February 16, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 16, 2022, Jan 26, 2017 (2 updates tracked since 2017).

About Giac Chan Nguyen Tan M.d. NPPES

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

GIAC CHAN NGUYEN TAN M.D. (NPI 1962585042) is an individual internal medicine provider in Waterbury, Connecticut, licensed in Connecticut (028148) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1984).

NPPES Registry Identity

NPI1962585042
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameGIAC CHAN NGUYEN TANCredential: M.D.
Location Address171 GRANDVIEW AVE, STE 105Waterbury, CT 06708-2519
Mailing Address171 Grandview Ave, Ste 105Waterbury, CT 06708-2519 · (203) 755-2214 · Fax (203) 596-1133
Sole ProprietorNo
Medical School CMSOtherGraduated 1984
Enumeration DateOctober 23, 2006
Last NPPES UpdateFebruary 16, 20222 updates tracked since enumeration
NPPES CertifiedFebruary 16, 2022
NPI 1962585042 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in CT · 028148
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedEmergency MedicineTaxonomy 207P00000X · License 028148 (CT)
Also ListedEmergency Medicine · Undersea and Hyperbaric MedicineTaxonomy 207PE0005X · License 028148 (CT)
171 GRANDVIEW AVE, Waterbury, CT 06708

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

Giac Chan Nguyen Tan 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 ID2365627163
PECOS Enrollment IDI20110420000589
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.

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.
169 services151 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06708 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.

92.61/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality84.17
Promoting Interoperability100
Improvement Activities40
Cost65.22

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.

Clinic/Center (Primary Care)
171 GRANDVIEW AVE, SUITE 204
WATERBURY, CT 06708
Naturopath
171 GRANDVIEW AVE, SUITE 202
WATERBURY, CT 06708
Dentist (General Practice)
171 GRANDVIEW AVE, SUITE 103
WATERBURY, CT 06708
Otolaryngology (Otolaryngic Allergy)
171 GRANDVIEW AVE, SUITE 101
WATERBURY, CT 06708
General Practice
171 GRANDVIEW AVE, SUITE # 105
WATERBURY, CT 06708
Otolaryngology
171 GRANDVIEW AVE, STE 203
WATERBURY, CT 06708
Nurse Practitioner (Family)
171 GRANDVIEW AVE, SUITE 201
WATERBURY, CT 06708
Physician Assistant (Medical)
171 GRANDVIEW AVE, SUITE 201
WATERBURY, CT 06708

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 Giac Chan Nguyen Tan's NPI number?

The NPI number for Giac Chan Nguyen Tan is 1962585042. It was assigned to this individual provider in the NPPES registry on October 23, 2006.

Where is Giac Chan Nguyen Tan located?

Giac Chan Nguyen Tan practices at 171 Grandview Ave Ste 105, Waterbury, CT 06708. The listed phone number is (203) 694-8200.

What is Giac Chan Nguyen Tan's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Giac Chan Nguyen Tan enrolled in Medicare?

Yes. Giac Chan Nguyen Tan 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 Giac Chan Nguyen Tan was last updated on February 16, 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.