What is Irmak Basaran O'Brien's NPI number?

Irmak Basaran O'Brien's National Provider Identifier (NPI) is 1689924649, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Irmak Basaran O'Brien's specialty?

Irmak Basaran O'Brien is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).

Where is Irmak Basaran O'Brien located?

Irmak Basaran O'Brien's practice location on file with NPPES is 244 California St Ste 300, San Francisco, CA 94111-4311.

What is Irmak Basaran O'Brien's phone number?

The practice phone number listed in the NPPES registry for Irmak Basaran O'Brien is (650) 451-5110.

Is Irmak Basaran O'Brien's NPI active?

Yes — Irmak Basaran O'Brien's NPI (1689924649) is active in the NPPES registry as of the last update on 2023-04-17.

IndividualActive

Irmak Basaran O'Brien

NPI 1689924649 · Mental Health Counselor · San Francisco, CA

Irmak Basaran O'Brien is a Mental Health Counselor provider in San Francisco, CA (NPI 1689924649).

Provider details

NPI number: 1689924649
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No
License: LPCC5933 (CA)

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800XLicense LPCC5933 (CA)
Behavioral Health & Social Service Providers
Mental Health Counselor101YM0800XLicense PCCI1363 (CA)
Behavioral Health & Social Service Providers
Student in an Organized Health Care Education/Training Program390200000XLicense PCCI1363 (CA)
Student, Health Care
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care
Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(88/100 index)

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

Registry tenure38% of score
13 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
4 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

244 California St Ste 300

San Francisco, CA 94111-4311

Phone: (650) 451-5110

Street-level locationGet directions

More CA providers

Mailing address

244 California St Ste 300

San Francisco, CA 94111-4311

Additional practice locations (3)

401 Roland Way Ste 100
Oakland, CA 94621-2034
Phone: (510) 839-3800
1440 Broadway
Suite 610
Oakland, CA 94612-2041
Phone: (510) 763-2880
1440 Broadway
Suite 610
Oakland, CA 94612-2041
Phone: (510) 763-2880

Enumerated: 2012-09-17
Last updated: 2023-04-17
Certified: 2023-04-17

Frequently asked questions

What is Irmak Basaran O'Brien's NPI number?: Irmak Basaran O'Brien's National Provider Identifier (NPI) is 1689924649, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Irmak Basaran O'Brien's specialty?: Irmak Basaran O'Brien is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
Where is Irmak Basaran O'Brien located?: Irmak Basaran O'Brien's practice location on file with NPPES is 244 California St Ste 300, San Francisco, CA 94111-4311.
What is Irmak Basaran O'Brien's phone number?: The practice phone number listed in the NPPES registry for Irmak Basaran O'Brien is (650) 451-5110.
Is Irmak Basaran O'Brien's NPI active?: Yes — Irmak Basaran O'Brien's NPI (1689924649) is active in the NPPES registry as of the last update on 2023-04-17.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.