1. Home
  2. Directory
  3. Connecticut
  4. New Haven
  5. Pathology
  6. NPI Profile

SEAN XIANG GU MD, PHD
NPI 1497245930
Pathology - Hematology in New Haven, CT

Active since May 10, 2018PECOS EnrolledAccepts Medicare Assignment
73.56/100
CMS Quality Rating
20 YORK STREET, YNHH AND DEPARTMENT OF LABORATORY MEDICINE, NEW HAVEN, CT 06510(203) 688-4242 Get Directions Write a Review

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

Record update history: May 16, 2022, May 10, 2018 (2 updates tracked since 2018).

About Sean Xiang Gu Md, Phd NPPES

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

SEAN XIANG GU MD, PHD (NPI 1497245930) is an individual hematology provider in New Haven, Connecticut, licensed in Connecticut (69959) and active in the NPI registry since May 2018. He is enrolled in Medicare PECOS and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (2017).

NPPES Registry Identity

NPI1497245930
Entity TypeIndividualMale
Primary Taxonomy207ZH0000X
Provider Legal NameSEAN XIANG GUCredential: MD, PHD
Location Address20 YORK STREET, YNHH AND DEPARTMENT OF LABORATORY MEDICINENew Haven, CT 06510-3220
Mailing Address20 York Street, Ynhh - Tompkins 226New Haven, CT 06510-3220 · (203) 688-4242
Phone(203) 688-4242
Sole ProprietorYes
Medical School CMSUniversity Of Iowa, Rj & L Carver College Of MedicineGraduated 2017
Enumeration DateMay 10, 2018
Last NPPES UpdateMay 16, 20222 updates tracked since enumeration
NPPES CertifiedMay 16, 2022
✔ NPI 1497245930 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPathology · HematologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZH0000X
License✔ Licensed in CT · 69959
Definition
A hematopathologist is expert in diseases that affect blood cells, blood clotting mechanisms, bone marrow and lymph nodes. This physician has the knowledge and technical skills essential for the laboratory diagnosis of anemias, leukemias, lymphomas, bleeding disorders and blood clotting disorders.
Also ListedPathology · Clinical Pathology/Laboratory MedicineTaxonomy 207ZP0105X · License 69959 (CT)
20 YORK STREET, New Haven, CT 06510
Open in Google Maps ↗

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

Sean Xiang Gu Md, Phd 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 ID1456733823
PECOS Enrollment IDI20220801003244
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 6

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.

Flow cytometry technique for dna or cell analysis, 16 or more markers 88189
Flow cytometry is a method used to measure and analyze cells. It uses a beam of light to detect up to 16 or more markers on cells, helping to identify their type, function, or abnormalities. This technique aids in diagnosing various health conditions.
101 services99 patients
Flow cytometry technique for dna or cell analysis, 9 to 15 markers 88188
Flow cytometry is a technique used to measure physical and chemical characteristics of cells or particles. It can analyze multiple markers (9 to 15) on a cell, helping to identify its type and function. This process can also examine DNA within cells for any abnormalities.
88 services76 patients
Molecular pathology procedure; physician interpretation and report G0452
A molecular pathology procedure involves analyzing your body's cells at a molecular level to identify any abnormalities. This can help detect diseases early. A physician will interpret the results and provide a detailed report, explaining the findings clearly.
86 services65 patients
Flow cytometry technique for dna or cell analysis, 2 to 8 markers 88187
Flow cytometry is a technique that helps analyze your cells and DNA. It uses lasers to identify and sort cells based on their properties, marked by up to 8 different markers. This helps in diagnosing and monitoring various health conditions.
43 services40 patients
Coagulation function screening test with interpretation and report 85390
A coagulation function screening test is a type of blood test that checks how well your blood clots. It's important because clotting helps prevent excessive bleeding. The test results are interpreted and a report is provided to help guide your doctor's treatment plan.
33 services29 patients
Blood smear interpretation by physician with written report 85060
Blood smear interpretation is a lab test where your doctor examines a sample of your blood under a microscope. They look for abnormalities in your blood cells which can help diagnose various conditions. You'll receive a written report of the findings.
32 services32 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06510 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.

73.56/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality75.84
Promoting Interoperability74
Improvement Activities40
Cost51.43

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.

SARAH HILL LCSW
Social Worker (Clinical)
20 YORK STREET, YALE-NEW HAVEN PSYCHIATRIC HOSPITAL
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-9907
JENNIFER PALERMO MD
Student in an Organized Health Care Education/Training Program
20 YORK STREET, YNHH TOMPKINS 226
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-9503
TASHA LEE CUVI APRN
Nurse Practitioner (Gerontology)
20 YORK STREET, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-4748
NIKHIL SEVAL M.D.
Internal Medicine
20 YORK STREET, YNHH - IM INFECTIOUS DISEASES
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-4242
JESSICA LAUREN DOLMAN MD
Hospitalist
20 YORK STREET, YNHH DEPT OF INTERNAL MEDICINE
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-4242
EESHA VIJAYKUMAR NATARAJAN MBBS
Student in an Organized Health Care Education/Training Program
20 YORK STREET, YNHH TOMPKINS 226
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-9503
NIRANJANA RAMANI MBBS
Student in an Organized Health Care Education/Training Program
20 YORK STREET, YALE NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-4242
MRS. SHARON MOALES LCSW
Social Worker (Clinical)
20 YORK STREET, YALE NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-5193

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 Sean Gu's NPI number?

The NPI number for Sean Gu is 1497245930. It was assigned to this individual provider in the NPPES registry on May 10, 2018.

Where is Sean Gu located?

Sean Gu practices at 20 York Street Ynhh And Department Of Laboratory Medicine, New Haven, CT 06510. The listed phone number is (203) 688-4242.

What is Sean Gu's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Hematology, with taxonomy code 207ZH0000X.

Is Sean Gu enrolled in Medicare?

Yes. Sean Gu 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 Sean Gu was last updated on May 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.