Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
FREDERICK E. SIEFERT, MD, PC
Active OrganizationFREDERICK E. SIEFERT, MD, PC is a Internal Medicine organization located in OLD GREENWICH, Connecticut. NPI 1417093683 is currently active in the NPPES registry. Verify at CMS.
Internal Medicine · OLD GREENWICH, CT
Registration Details
- NPI Number
- 1417093683
- Provider Type
- Organization
- NPI Issued
- Jan 29, 2007 (19.356351068953 yrs)
- Last Updated
- Sep 10, 2007
Practice Information
- Address
-
8 W END AVEOLD GREENWICH, CT, 068701642Browse CT providers · Browse ZIP 06870
- Phone
- 2036375406
- Fax
- 2036375408
- Primary Specialty
-
Internal Medicine
207R00000X
Other Internal Medicine Organizations in OLD GREENWICH, CT
| Name | NPI |
|---|---|
| REBECCA WARKOL MD LLC | 1508266479 |
| EDRA STERN MD LLC | 1184124075 |
| OLD GREENWICH MEDICAL GROUP LLC | 1730932880 |
Data sourced from the NPPES National Provider Identifier registry. Healthcare organizations registered in NPPES are assigned an NPI number for use in insurance billing and claims. This information is for informational purposes only. For official verification, use the NPPES NPI Registry.