What is Jason Darr's NPI number?

Jason Darr's National Provider Identifier (NPI) is 1558689786, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Jason Darr's specialty?

Jason Darr is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).

Where is Jason Darr located?

Jason Darr's practice location on file with NPPES is 317 W F St, Ontario, CA 91762-3205.

What is Jason Darr's phone number?

The practice phone number listed in the NPPES registry for Jason Darr is (909) 391-3051.

Does Jason Darr accept Medicare?

Jason Darr is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Jason Darr's NPI active?

Yes — Jason Darr's NPI (1558689786) is active in the NPPES registry as of the last update on 2019-12-09.

IndividualActiveAccepts Medicare

Jason Darr, LMFT

NPI 1558689786 · Marriage & Family Therapist · Ontario, CA

Enrolled with Medicare as Practitioner - Marriage and Family Therapist · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Jason Darr, LMFT is a Marriage & Family Therapist provider in Ontario, CA (NPI 1558689786).

Provider details

NPI number: 1558689786
Entity type: Individual
Primary specialty: Marriage & Family TherapistBehavioral Health & Social Service Providers
Credential: LMFT
Sex: Male
Sole proprietor: No
License: IMF62731 (CA)

Specialties & taxonomies

Marriage & Family TherapistPrimary106H00000XLicense LMFT82576 (CA)
Behavioral Health & Social Service Providers
Marriage & Family Therapist106H00000XLicense IMF62731 (CA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(93/100 index)

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

Registry tenure38% of score
16 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
3 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

317 W F St

Ontario, CA 91762-3205

Phone: (909) 391-3051

Street-level locationGet directions

More CA providers

Mailing address

1452 Coyote Dr

Corona, CA 92882-4507

Additional practice locations (2)

25020 Las Brisas Rd Ste 202
Murrieta, CA 92562-4064
Phone: (951) 387-4040
19330 Jesse Ln Ste 280
Riverside, CA 92508-5076
Phone: (951) 387-4040

Enumerated: 2010-05-12
Last updated: 2019-12-09
Certified: 2019-12-09

Frequently asked questions

What is Jason Darr's NPI number?: Jason Darr's National Provider Identifier (NPI) is 1558689786, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Jason Darr's specialty?: Jason Darr is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
Where is Jason Darr located?: Jason Darr's practice location on file with NPPES is 317 W F St, Ontario, CA 91762-3205.
What is Jason Darr's phone number?: The practice phone number listed in the NPPES registry for Jason Darr is (909) 391-3051.
Does Jason Darr accept Medicare?: Jason Darr is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Jason Darr's NPI active?: Yes — Jason Darr's NPI (1558689786) is active in the NPPES registry as of the last update on 2019-12-09.

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