Walker Gregory De Witt, LMFT
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice locations
- 2
- Practice address
- 11425 El Camino Real Ste A, San Diego, CA 92130
- Practice phone
- Call (858) 794-6364
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Del Mar Surgery Center
Surgery Center - Not Medicare-Certified · San Diego, California
Find Walker De Witt's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Walker Gregory De Witt is a marriage and family therapist in San Diego, California
Walker De Witt practices at Del Mar Surgery Center in San Diego, California.
Walker De Witt's NPI, 1578604732, was assigned on February 9, 2007. Walker De Witt holds California license 78003.
- NPI
- 1578604732NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355861774
- NPI enumeration date
- February 9, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (858) 794-6364
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Walker Gregory De Witt practices at 2 locations in San Diego, California
Walker De Witt's primary practice is Del Mar Surgery Center, at 11425 El Camino Real Ste A, San Diego, CA 92130. The practice phone is (858) 794-6364. Walker De Witt also practices at Del Mar Surgery Center, 11515 El Camino Real, San Diego, CA 92130.
- Del Mar Surgery CenterPrimary11425 El Camino Real Ste A, San Diego, CA 92130Phone(858) 794-6364
- Del Mar Surgery Center11515 El Camino Real, San Diego, CA 92130 · San Diego CountyPhone(858) 794-6363
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Walker Gregory De Witt is affiliated with 2 sites of care and 1 medical group
Walker De Witt's primary practice is Del Mar Surgery Center in San Diego, California. The medical group on file is LifeStance Health. Dmand AI also links Walker De Witt to 1 more group practice or clinic, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Walker Gregory De Witt's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Walker De Witt practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Del Mar Surgery Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Walker Gregory De Witt is one of 13,197 marriages and family therapists in California
Marriage and family therapist is Walker De Witt's primary specialty in the NPI Registry, under taxonomy code 106H00000X. Walker De Witt is licensed in California.
Specialties and state licenses
- Marriage and family therapist, CaliforniaPrimary
Marriages and family therapists near Walker De Witt
Counts of marriages and family therapists 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
Walker Gregory De Witt's patients have a median age of 29
Across all payers, Dmand AI patient panel data puts Walker De Witt's median patient age at 29, with 26% women.
Walker De Witt's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 29
Patient panel by sex, all payers
- Women26%
- Men69%
Source: Dmand AI Patient Panel Data
How Walker Gregory De Witt takes part in Medicare
Walker De Witt accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for Walker Gregory De Witt'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Walker Gregory De Witt
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Walker Gregory De Witt's NPI number?
Walker Gregory De Witt's NPI number is 1578604732. It was assigned on February 9, 2007, and it is active in the NPI Registry.
What does Walker Gregory De Witt specialize in?
Walker Gregory De Witt is a marriage and family therapist in San Diego, California. The primary specialty in the NPI Registry is Marriage & Family Therapist (taxonomy code 106H00000X).
Where does Walker Gregory De Witt practice?
Walker De Witt practices at 11425 El Camino Real Ste A, San Diego, CA 92130. Walker De Witt also practices at 11515 El Camino Real, San Diego, CA 92130. Walker De Witt's primary practice is Del Mar Surgery Center in San Diego, California. Dmand AI also links Walker De Witt to 1 group practice or clinic.
What is Walker Gregory De Witt's office phone number?
The practice phone on file for Walker De Witt is (858) 794-6364.
What is Walker Gregory De Witt's medical license number?
Walker De Witt holds California license 78003.
What medical group is Walker Gregory De Witt part of?
Walker De Witt is linked to LifeStance Health.
Does Walker Gregory De Witt accept Medicare?
Yes. CMS lists Walker De Witt as accepting Medicare assignment.
How long has Walker Gregory De Witt been practicing?
Walker De Witt graduated from medical school in 2007, 19 years ago.
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