Kathleen M. Cassel, MD
Family Medicine Physician · Klamath, CA
Kathleen M. Cassel, MD is a family medicine physician with a practice address in Klamath, California, and NPI 1962400051, issued on Jul 12, 2005. Check the license (California A70180, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kathleen M. Cassel
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A70180 CA
Self-reported in NPPES; status is on the state search - Practice location
- 241 Salmon Ave, Klamath, CA 95548
- Phone
- (707) 482-2181
- Enumerated
- Jul 12, 2005
- Record last updated
- Aug 10, 2022
- Fax
- (707) 482-3655
- Medicaid ID
- 00A701800 CA
- Medicare enrollment
- Enrolled (PECOS I20110727000489); accepts Medicare assignment
- Medical or professional school
- Perelman School Of Med At The University Of Pennsylvania, 1998
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Kathleen M. Cassel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A70180Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average family medicine physician in 2024
2,214 Medicare Part D claims for 94 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 53 claims were for opioids.
Most prescribed
- Atorvastatin Calcium190 claims
- Gabapentin97 claims
- Losartan Potassium93 claims
- Amlodipine Besylate65 claims
- Levothyroxine Sodium60 claims
- Metformin Hcl54 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- United Indian Health Services, Inc.Arcata, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathleen M. Cassel among 17,133 family medicine physician records in California
Kathleen M. Cassel, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1998 · median 2005 among the 10,652 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in California
There are 17,133 family medicine physician records in California.
All 17,133 in California → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Troy Bassiri, MDHoopa, CA 955461316475643
- Jill Buller, MDHoopa, CA 955461194302851
- Sawar Young, M.D.Hoopa, CA 955461093924052
- Emily Marshall, DOGarberville, CA 955421861849283
- Marcin Matuszkiewicz, MDGarberville, CA 955421063647543
- Nathan BrinckhausFortuna, CA 955401508156910
- Ruben Brinckhaus, MDFortuna, CA 955401891708806
- Hyun Ryung Choi, MD.Fortuna, CA 955401205578663
Common questions
What is Kathleen M. Cassel, MD's NPI number?
Kathleen M. Cassel, MD's National Provider Identifier (NPI) is 1962400051, issued on Jul 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen M. Cassel, MD located?
The NPPES record lists a practice address at 241 Salmon Ave, Klamath, CA, 95548. Phone: (707) 482-2181. Providers update this record themselves, so call before visiting.
How can I verify Kathleen M. Cassel, MD's license?
NPPES lists California license number A70180, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kathleen M. Cassel, MD prescribe under Medicare Part D?
In 2024, Kathleen M. Cassel, MD had 2,214 Medicare Part D claims for 94 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions 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.