Ronald Mackenzie, LCSW
NPI 1629227780 · Clinical Social Worker · Greenfield, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Mackenzie, LCSW is a Clinical Social Worker provider in Greenfield, CA (NPI 1629227780).
Provider details
- NPI number
- 1629227780
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- 66544 (CA)
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
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 2625 Zanker RdSan Jose, CA 95134-2130Phone: (408) 240-3385Fax: (408) 432-6225
Registry dates
- Enumerated
- 2008-09-13
- Last updated
- 2019-01-30
Frequently asked questions
- What is Ronald Mackenzie's NPI number?
- Ronald Mackenzie's National Provider Identifier (NPI) is 1629227780, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Mackenzie's specialty?
- Ronald Mackenzie is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Ronald Mackenzie located?
- Ronald Mackenzie's practice location on file with NPPES is 215 Huerta Ave, Greenfield, CA 93927.
- What is Ronald Mackenzie's phone number?
- The practice phone number listed in the NPPES registry for Ronald Mackenzie is (831) 674-2180.
- Does Ronald Mackenzie accept Medicare?
- Ronald Mackenzie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Mackenzie's NPI active?
- Yes — Ronald Mackenzie's NPI (1629227780) is active in the NPPES registry as of the last update on 2019-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.