Grechen Holthausen
Clinical Social Worker · Guilford, CT
Grechen Holthausen is a clinical social worker with a practice address in Guilford, Connecticut, and NPI 1174972780, issued on Jun 6, 2016. Check the license (Connecticut 2986, as entered in NPPES) with the Connecticut board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Grechen Holthausen
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 2986 CT
Self-reported in NPPES; status is on the state search - Practice location
- 36 Graves Ave, Guilford, CT 06437
- Phone
- (203) 453-8047
- Enumerated
- Jun 6, 2016
- Record last updated
- Jun 6, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (203) 453-8044
- Entity
- Type 1 · individual
Also registered at 36 Graves Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sophia Didiano, LCSWClinical Social Worker1306702618
- Maura Harding, LMSWSocial Worker1194403907
- Robin Klatzkie, LCSWClinical Social Worker1568133544
- Pamela Nuchols, LCSWClinical Social Worker1083864623
- Buddy TothProfessional Counselor1891409272
- Lauren VoelkerClinical Social Worker1801385406
Verify Grechen Holthausen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 2986Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61 clinical social worker records list a practice address in Guilford
They are 61 of the 504 NPPES records with a practice address in Guilford, and 7,729 clinical social worker records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 61 in Guilford → All 7,729 in Connecticut → Every provider in Guilford →
Other clinical social worker records in Connecticut
- Pirjo Aalto-Fischer, LCSWNew Haven, CT1225473655
- Lois Aaron, MSWWest Hartford, CT1447317185
- Lisa AaronbergDanielson, CT1740176510
- Ingrid AaronsNorwalk, CT1952119158
- Kori Abarzua, LCSWBristol, CT1891419578
- Jessica Abate, LCSWWest Simsbury, CT1467670596
- Laura Abbatemarco, M.S.W.West Hartford, CT1801067459
- Luciano Abbatemarco, LCSWHartford, CT1891096764
- Daisy Abbott, LCSWMiddletown, CT1831112424
- Khalilah AbdulrahimWoodbridge, CT1063087914
Common questions
What is Grechen Holthausen's NPI number?
Grechen Holthausen's National Provider Identifier (NPI) is 1174972780, issued on Jun 6, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Grechen Holthausen located?
The NPPES record lists a practice address at 36 Graves Ave, Guilford, CT, 06437. Phone: (203) 453-8047. Providers update this record themselves, so call before visiting.
How can I verify Grechen Holthausen's license?
NPPES lists Connecticut license number 2986, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.