Ethan M. Grumbach, PhD
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 2796 Sycamore Dr, Simi Valley, CA 93065
- Practice phone
- Call (805) 582-0999
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sunset Sleep Center
Imaging Center - Main Location · Simi Valley, California
Find Ethan Grumbach's professional email, personal email and mobile number
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Ethan M. Grumbach is a clinical social worker in Simi Valley, California
Ethan Grumbach practices at Sunset Sleep Center in Simi Valley, California.
Ethan Grumbach's NPI, 1104955681, was assigned on March 2, 2007. Ethan Grumbach holds California license LCS19239.
- NPI
- 1104955681NPI Registry (opens in a new tab)
- NPI enumeration date
- March 2, 2007
- NPI status
- Active
- Practice phone
- (805) 582-0999
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Ethan M. Grumbach practices at Sunset Sleep Center in Simi Valley, California
Ethan Grumbach's primary practice is Sunset Sleep Center, at 2796 Sycamore Dr, Simi Valley, CA 93065. The practice phone is (805) 582-0999.
- Sunset Sleep Center2796 Sycamore Dr, Simi Valley, CA 93065Phone(805) 582-0999
Source: Dmand AI Affiliation Data
Ethan M. Grumbach is affiliated with 1 site of care
Ethan Grumbach's primary practice is Sunset Sleep Center in Simi Valley, California.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Ethan M. Grumbach's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ethan Grumbach practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sunset Sleep Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Ethan M. Grumbach is one of 9,919 clinical social workers in California
Social worker is Ethan Grumbach's primary specialty in the NPI Registry, under taxonomy code 1041C0700X. The record also lists clinical. Ethan Grumbach is licensed in California.
Specialties and state licenses
- Clinical social worker, CaliforniaPrimary
Clinical social workers near Ethan Grumbach
Counts of clinical social workers with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Ethan M. Grumbach's patients have a median age of 39
Across all payers, Dmand AI patient panel data puts Ethan Grumbach's median patient age at 39, with 0% women.
Ethan Grumbach's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Sources for Ethan M. Grumbach's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Ethan M. Grumbach
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What is Ethan M. Grumbach's NPI number?
Ethan M. Grumbach's NPI number is 1104955681. It was assigned on March 2, 2007, and it is active in the NPI Registry.
What does Ethan M. Grumbach specialize in?
Ethan M. Grumbach is a clinical social worker in Simi Valley, California. The primary specialty in the NPI Registry is Clinical Social Worker (taxonomy code 1041C0700X).
Where does Ethan M. Grumbach practice?
Ethan Grumbach practices at 2796 Sycamore Dr, Simi Valley, CA 93065. Ethan Grumbach's primary practice is Sunset Sleep Center in Simi Valley, California.
What is Ethan M. Grumbach's office phone number?
The practice phone on file for Ethan Grumbach is (805) 582-0999.
What is Ethan M. Grumbach's medical license number?
Ethan Grumbach holds California license LCS19239.
How long has Ethan M. Grumbach been practicing?
Ethan Grumbach's NPI was assigned in 2007.
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