What is Ronald Grein's NPI number?

Ronald Grein's National Provider Identifier (NPI) is 1497606834, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Ronald Grein's specialty?

Ronald Grein is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).

Where is Ronald Grein located?

Ronald Grein's practice location on file with NPPES is 1401 Mallard Ln, Oakley, CA 94561-2014.

What is Ronald Grein's phone number?

The practice phone number listed in the NPPES registry for Ronald Grein is (253) 625-0976.

Is Ronald Grein's NPI active?

Yes — Ronald Grein's NPI (1497606834) is active in the NPPES registry as of the last update on 2026-02-03.

IndividualActive

Ronald Grein

NPI 1497606834 · Mental Health Counselor · Oakley, CA

Ronald Grein is a Mental Health Counselor provider in Oakley, CA (NPI 1497606834).

Provider details

NPI number: 1497606834
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No
License: APCC21726 (CA)

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800XLicense APCC21726 (CA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(53/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
100% 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

1401 Mallard Ln

Oakley, CA 94561-2014

Phone: (253) 625-0976

Street-level locationGet directions

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Mailing address