IndividualActive
Sharon Gerstein, MFT
NPI 1235220831 · Counselor · Tustin, CA
Sharon Gerstein, MFT is a Counselor provider in Tustin, CA (NPI 1235220831).
Provider details
- NPI number
- 1235220831
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Credential
- MFT
- Sex
- Female
- Sole proprietor
- Yes
- License
- MFC25957 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES 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
218 W Main St
202
Tustin, CA 92780-7719
Phone: (714) 520-4894
Street-level locationGet directions
Mailing address
1200 N Main St
Santa Ana, CA 92701-3640
Registry dates
- Enumerated
- 2006-09-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is Sharon Gerstein's NPI number?
- Sharon Gerstein's National Provider Identifier (NPI) is 1235220831, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sharon Gerstein's specialty?
- Sharon Gerstein is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is Sharon Gerstein located?
- Sharon Gerstein's practice location on file with NPPES is 218 W Main St, Tustin, CA 92780-7719.
- What is Sharon Gerstein's phone number?
- The practice phone number listed in the NPPES registry for Sharon Gerstein is (714) 520-4894.
- Is Sharon Gerstein's NPI active?
- Yes — Sharon Gerstein's NPI (1235220831) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.