Dr. William J Giesen, MD
Internal Medicine in Darien, Connecticut
1124104724- Practice location
- 1500 Post RD., Darien, CT 06820
- Phone
- 203-655-2516
- Fax
- 203-656-3665
- Last updated
- May 9, 2016
William James Giesen is an Internal Medicine based in Darien, CT. William James Giesen practices in Darien, CT and has the professional credentials of MD. The NPI Number for William James Giesen is 1124104724 and holds a License No. CT023721 (CT). The current practice location address for William James Giesen is 1500 Post RD., Darien, CT 06820 and can be reached out via phone at 203-655-2516 and via fax at 203-656-3665.
Provider Profile Details
- NPI Number
- 1124104724
- Provider Name
- William James Giesen
- Credential
- MD
- Provider Entity Type
- Individual
- Gender
- Male
- Address
- 1500 Post RD., Darien, CT 06820
- Phone Number
- 203-655-2516
- Fax Number
- 203-656-3665
- Primary Taxonomy
- Internal Medicine · 207R00000X
- Sole Proprietor
- Yes
- Provider Enumeration Date
- October 27, 2006
- Last Update Date
- May 9, 2016
- NPI Status
- Active
Provider Business Practice Location Address Details
- Address
- 1500 Post RD.
Darien, CT 06820 - City
- Darien
- State
- Connecticut
- Zip
- 06820
- Phone Number
- 203-655-2516
- Fax Number
- 203-656-3665
Provider Business Mailing Address Details
- Address
- 1500 Post RD
Darien, CT 06820 - City
- Darien
- State
- CT
- Zip
- 06820
- Phone Number
- 203-655-2516
- Fax Number
- 203-656-3665
License Information
- License Number
- CT023721
- License State
- CT
- Taxonomy
- Internal Medicine · 207R00000X · Primary
Legacy Identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| No legacy identifiers (Medicaid, Medicare or plan IDs) are on file for this provider. | |||
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Frequently Asked Questions
What is the NPI number of Dr. William J Giesen, MD?
The NPI number of Dr. William J Giesen, MD is 1124104724. It was assigned on October 27, 2006 and is currently active in the NPPES registry.
What is the specialty of Dr. William J Giesen, MD?
Dr. William J Giesen, MD is registered under the primary taxonomy Internal Medicine (code 207R00000X), licensed in CT under license number CT023721.
Where does Dr. William J Giesen, MD practice?
The practice location is 1500 Post RD., Darien, CT 06820. The office can be reached at 203-655-2516 (phone) or 203-656-3665 (fax).
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). It is used in HIPAA standard transactions.
How do I verify this NPI record?
This record is sourced from the public NPPES NPI Registry maintained by CMS. You can confirm it by searching NPI 1124104724 directly on the NPPES registry website.