Chao Guo, MD
Internal Medicine · Stamford, CT
At a glance
30 Shelburne Rd, Stamford, CT 06902
NPPES record updated Nov 10, 2021. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
30 Shelburne Rd Dept Of MedicineStamford, CT 06902
Additional reported practice locations
100 Mcgregor StManchester, NH 031023730
Phone: 6036635310
Fax: 6036638015 55 Lake Ave N
Worcester, MA 016550002
Phone: 5083348515
Fax: 5083346490 119 Belmont St
Worcester, MA 016052903
Phone: 5083348515
Fax: 5083346490
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2015
- CMS specialties
- Internal Medicine
Practice groups
- Canton-Potsdam Hospital
- Hospital Medicine Services Of Tennessee Pc
- Kings Daughters Medical Specialties Inc
- Nj Acute Care Specialists Professional Corporation
Reported hospital affiliations
- Canton-Potsdam Hospital Potsdam, NY
- Centrastate Medical Center Freehold, NJ
- Cumberland Medical Center Crossville, TN
- King's Daughters' Medical Center Ashland, KY
- Slhs Massena, Inc Massena, NY
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $28.69 |
Reporting companies
| Company | Amount |
|---|---|
| SCPHARMACEUTICALS INC. | $28.69 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Internal Medicine
- Taxonomy code
- 207R00000X
- Enumeration date
- Apr 13, 2015
- Record updated
- Nov 10, 2021
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
207R00000X
License reported: 25MA10656300 NJ
207R00000X
License reported: ME135339 FL
208M00000X
License reported: 036158670 IL
207R00000X · Primary
License reported: 286545 MA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
30 Shelburne RdDept Of Medicine
Stamford, CT 06902
- Phone
- (203) 276-7147
- Fax
- (203) 276-7368
Mailing address
PO BOX 415348 DEPT OF MEDICINEBOSTON, MA 022415348
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
Report a directory issue