Isabel Cristina Deffit, M.S.
Professional Counselor · Tulsa, OK
Isabel Cristina Deffit, M.S. is a professional counselor with a practice address in Tulsa, Oklahoma, and NPI 1801238175, issued on Jul 26, 2013. Check the license (Oklahoma 10075, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Isabel Cristina Deffit
- Credential
- M.S.
- Primary taxonomy
- Professional Counselor 101YP2500X
- License number
- 10075 OK
Self-reported in NPPES; status is on the state search - Practice location
- 6655 S Yale Ave, Tulsa, OK 74136
- Phone
- (918) 491-3700
- Enumerated
- Jul 26, 2013
- Record last updated
- Jun 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (918) 481-4063
- Medicare enrollment
- Enrolled (PECOS I20240311002030); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest professional counselor records → All 2,546 in Oklahoma → Look up another NPI →
Also registered at 6655 S Yale Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kara Alger, APRN, CNPPsychiatric/Mental Health Nurse Practitioner1104600279
- Mohamad Alrifai, DOPsychiatry Physician1164092730
- Monica Armstrong, LMFTMarriage & Family Therapist1912154550
- Casey Augustus-Horvath, PHDClinical Psychologist1154600435
- Robin Aupperle, PH.D.Clinical Psychologist1073887907
- Marla Barrett, LCSWClinical Social Worker1124094131
Verify Isabel Cristina Deffit in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
Search for license 10075Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Laureate Psychiatric Clinic And Hospital IncTulsa, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Isabel Cristina Deffit among 2,546 professional counselor records in Oklahoma
Isabel Cristina Deffit, M.S. is one of 2,546 professional counselor records with a practice address in Oklahoma. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 58% of them.
- NPI issued2013 · 58% of these records are older, 37% newer
- In a Medicare fileYes · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 14% of these records are
- Graduated2014 · median 2012 among the 365 with a school on file
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YP2500X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
494 professional counselor records list a practice address in Tulsa
They are 494 of the 18,643 NPPES records with a practice address in Tulsa, and 2,546 professional counselor records in Oklahoma.
All 2,546 in Oklahoma → Every provider in Tulsa → Professional Counselor nationwide →
The 8 professional counselor records with the nearest ZIP codes
- Karen Bishop, LPCTulsa, OK 741361376503441
- Lisa Brown, LMFTTulsa, OK 741361306805031
- Marie Calico, LPCTulsa, OK 741361992764633
- Krista Caveny, LPCTulsa, OK 741361730148222
- Deborah Davidson, LPCTulsa, OK 741361235199001
- Dian Dowell, LPCTulsa, OK 741361457310823
- Linda Goble, LPCTulsa, OK 741361912966243
- Lisa Henderson, LPCTulsa, OK 741361205896867
Common questions
What is Isabel Cristina Deffit, M.S.'s NPI number?
Isabel Cristina Deffit, M.S.'s National Provider Identifier (NPI) is 1801238175, issued on Jul 26, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Isabel Cristina Deffit, M.S. located?
The NPPES record lists a practice address at 6655 S Yale Ave, Tulsa, OK, 74136. Phone: (918) 491-3700. Providers update this record themselves, so call before visiting.
How can I verify Isabel Cristina Deffit, M.S.'s license?
NPPES lists Oklahoma license number 10075, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.