Isabel Deffit, M.S.
NPI 1801238175 · Professional Counselor · Tulsa, OK
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isabel Deffit, M.S. is a Professional Counselor provider in Tulsa, OK (NPI 1801238175).
Provider details
- NPI number
- 1801238175
- Entity type
- Individual
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Credential
- M.S.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 10075 (OK)
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
12 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
Mailing address
Registry dates
- Enumerated
- 2013-07-26
- Last updated
- 2021-06-14
- Certified
- 2021-06-14
Frequently asked questions
- What is Isabel Deffit's NPI number?
- Isabel Deffit's National Provider Identifier (NPI) is 1801238175, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isabel Deffit's specialty?
- Isabel Deffit is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).
- Where is Isabel Deffit located?
- Isabel Deffit's practice location on file with NPPES is 6655 S Yale Ave, Tulsa, OK 74136-3326.
- What is Isabel Deffit's phone number?
- The practice phone number listed in the NPPES registry for Isabel Deffit is (918) 491-3700.
- Does Isabel Deffit accept Medicare?
- Isabel Deffit is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isabel Deffit's NPI active?
- Yes — Isabel Deffit's NPI (1801238175) is active in the NPPES registry as of the last update on 2021-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.