DR. CHAO GUO MD
NPI 1043606486
Internal Medicine in Stamford, CT

Active since April 13, 2015PECOS EnrolledAccepts Medicare Assignment
30 SHELBURNE RD, DEPT OF MEDICINE, STAMFORD, CT 06902(203) 276-7147(203) 276-7368 Get Directions Write a Review

NPPES record last updated: November 10, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 10, 2021, Nov 3, 2021, Aug 16, 2021 and 2 more (5 updates tracked since 2018).

About Dr. Chao Guo Md NPPES

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

DR. CHAO GUO MD (NPI 1043606486) is an individual internal medicine provider in Stamford, Connecticut, licensed in Massachusetts (286545) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, is affiliated with King's Daughters' Medical Center, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1043606486
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. CHAO GUOCredential: MD
Location Address30 SHELBURNE RD, DEPT OF MEDICINEStamford, CT 06902
Mailing AddressPo Box 415348 Dept Of MedicineBoston, MA 02241-5348 · (800) 225-8885 · Fax (508) 334-1977
Fax(203) 276-7368
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateApril 13, 2015
Last NPPES UpdateNovember 10, 20215 updates tracked since enumeration
NPPES CertifiedNovember 10, 2021
NPI 1043606486 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in MA · 286545 Licensed in NJ · 25MA10656300 Licensed in FL · ME135339
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 ListedHospitalistTaxonomy 208M00000X · License 036158670 (IL)
30 SHELBURNE RD, Stamford, CT 06902

Secondary Practice Locations 3

Location 1100 McGregor StManchester, NH 03102-3730 · Phone (603) 663-5310 · Fax (603) 663-8015
Location 255 Lake Ave NWorcester, MA 01655-0002 · Phone (508) 334-8515 · Fax (508) 334-6490
Location 3119 Belmont StWorcester, MA 01605-2903 · Phone (508) 334-8515 · Fax (508) 334-6490

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. Chao Guo 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 ID8628328960
PECOS Enrollment IDI20190820000293, I20210324003077, I20231031001392
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 3

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
130 services127 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.
80 services78 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.
20 services12 patients

Hospital Affiliations CMS Care Compare 4

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

King's Daughters' Medical Center

Acute Care Hospitals · Ashland, KY
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number180009
Location2201 Lexington AvenueAshland, KY 41101 · Boyd County
Emergency services

Three Rivers Medical Center

Acute Care Hospitals · Louisa, KY
3/5 CMS rating
OwnershipProprietary
CMS Certification Number180128
Location2485 Highway 644Louisa, KY 41230 · Lawrence County
Emergency services

Canton-Potsdam Hospital

Acute Care Hospitals · Potsdam, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330197
Location50 Leroy StreetPotsdam, NY 13676 · St. Lawrence County
Emergency services Birthing friendly

Slhs Massena, Inc

Critical Access Hospitals · Massena, NY
OwnershipVoluntary non-profit - Private
CMS Certification Number331322
Location1 Hospital DriveMassena, NY 13662 · St. Lawrence County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06902 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.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%129 patients5/55-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 20

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

Anesthesiology
30 SHELBURNE RD
STAMFORD, CT 06902
Emergency Medicine
30 SHELBURNE RD
STAMFORD, CT 06902
Pharmacy (Community/Retail Pharmacy)
30 SHELBURNE RD
STAMFORD, CT 06902
Psychiatry & Neurology (Addiction Psychiatry)
30 SHELBURNE RD, STAMFORD HOSPITAL
STAMFORD, CT 06902
Physician Assistant
30 SHELBURNE RD
STAMFORD, CT 06902
Anesthesiology
30 SHELBURNE RD
STAMFORD, CT 06902
Physician Assistant (Surgical)
30 SHELBURNE RD
STAMFORD, CT 06902
Pathology (Anatomic Pathology & Clinical Pathology)
30 SHELBURNE RD
STAMFORD, CT 06902

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 Chao Guo's NPI number?

The NPI number for Chao Guo is 1043606486. It was assigned to this individual provider in the NPPES registry on April 13, 2015.

Where is Chao Guo located?

Chao Guo practices at 30 Shelburne Rd Dept Of Medicine, Stamford, CT 06902. The listed phone number is (203) 276-7147.

What is Chao Guo's specialty?

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

Is Chao Guo enrolled in Medicare?

Yes. Chao Guo 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 Chao Guo accept?

Health plans from CareSource and Molina Healthcare list Chao Guo 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 Chao Guo affiliated with any hospitals?

According to CMS data, Chao Guo is affiliated with King's Daughters' Medical Center, Three Rivers Medical Center, Canton-Potsdam Hospital and Slhs Massena, Inc.

When was this NPI record last updated?

The NPPES record for Chao Guo was last updated on November 10, 2021. 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.