John Warfield
NPI 1639846835 · Marriage & Family Therapist · Riverside, CA
John Warfield is a Marriage & Family Therapist provider in Riverside, CA (NPI 1639846835).
Provider details
- NPI number
- 1639846835
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-08-25
- Last updated
- 2021-08-25
- Certified
- 2021-08-25
Frequently asked questions
- What is John Warfield's NPI number?
- John Warfield's National Provider Identifier (NPI) is 1639846835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Warfield's specialty?
- John Warfield is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is John Warfield located?
- John Warfield's practice location on file with NPPES is 4164 Brockton Ave Ste a, Riverside, CA 92501-3400.
- What is John Warfield's phone number?
- The practice phone number listed in the NPPES registry for John Warfield is (951) 888-1346.
- Is John Warfield's NPI active?
- Yes — John Warfield's NPI (1639846835) is active in the NPPES registry as of the last update on 2021-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.