Margaretha Esther Klassen
Addiction (Substance Use Disorder) Counselor · Fresno, CA
Margaretha Esther Klassen is an addiction (substance use disorder) counselor with a practice address in Fresno, California, and NPI 1821349663, issued on Sep 19, 2012. Check the license with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Margaretha Esther Klassen
- Primary taxonomy
- Addiction (Substance Use Disorder) Counselor 101YA0400X
- Practice location
- 4705 N Sonora Ave Ste 113, Fresno, CA 93722
- Phone
- (559) 349-8951
- Enumerated
- Sep 19, 2012
- Record last updated
- Sep 19, 2012 (not updated in 14 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest addiction (substance use disorder) counselor records → All 27,741 in California → Look up another NPI →
Also registered at 4705 N Sonora Ave Ste 113
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Roy BaconAddiction (Substance Use Disorder) Counselor1801669650
- Alresia BoydAddiction (Substance Use Disorder) Counselor1053679068
- Chukwuma Enunwa, REGISTERED COUNSELORAddiction (Substance Use Disorder) Counselor1770069254
- Felix Enunwa, ED.D, MBA, CADC-IIAddiction (Substance Use Disorder) Counselor1639552839
- Rita Enunwa, RN, NPNurse Practitioner1497838924
- Vanessa EwingAddiction (Substance Use Disorder) Counselor1194422808
Verify Margaretha Esther Klassen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Margaretha Esther Klassen among 27,741 addiction (substance use disorder) counselor records in California
Margaretha Esther Klassen is one of 27,741 addiction (substance use disorder) counselor records with a practice address in California. under 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2012, is newer than 25% of them.
- NPI issued2012 · 25% of these records are older, 72% newer
- In a Medicare fileNo · under 1% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2012 · 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 101YA0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,231 addiction (substance use disorder) counselor records list a practice address in Fresno
They are 1,231 of the 19,440 NPPES records with a practice address in Fresno, and 27,741 addiction (substance use disorder) counselor records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 27,741 in California → Every provider in Fresno → Addiction (Substance Use Disorder) Counselor nationwide →
The 8 addiction (substance use disorder) counselor records with the nearest ZIP codes
- Helen BanesFresno, CA 937221528215233
- Angie BarnesFresno, CA 937221457680761
- Alresia BoydFresno, CA 937221053679068
- Jeremiah BrubakerFresno, CA 937221851640247
- Renee CobbFresno, CA 937221275717472
- Juanita GarciaFresno, CA 937221619115599
- Teresa LiebigFresno, CA 937221538224779
- Noemi Macias-SweidyFresno, CA 937221598985905
Common questions
What is Margaretha Esther Klassen's NPI number?
Margaretha Esther Klassen's National Provider Identifier (NPI) is 1821349663, issued on Sep 19, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Margaretha Esther Klassen located?
The NPPES record lists a practice address at 4705 N Sonora Ave Ste 113, Fresno, CA, 93722. Phone: (559) 349-8951. Providers update this record themselves, so call before visiting.
How can I verify Margaretha Esther Klassen's license?
Search the California 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. 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.