Karen Lynn Ridenour, FNP
Family Nurse Practitioner · Tucson, AZ
Karen Lynn Ridenour, FNP is a family nurse practitioner with a practice address in Tucson, Arizona, and NPI 1033205281, issued on Oct 5, 2006. Check the license (Arizona AP1993, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Lynn Ridenour
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- AP1993 AZ
RN128384 AZ
000-00-4767 TX
66740254405 UT
AP30005175 WA
and 1 more
Self-reported in NPPES; status is on the state search - Practice location
- 2828 N Stone Ave, Tucson, AZ 85705
- Phone
- (520) 245-6650
- Enumerated
- Oct 5, 2006
- Record last updated
- Mar 7, 2024
- Medicaid ID
- 876196 AZ
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,933 in Arizona → Look up another NPI →
Also registered at 2828 N Stone Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathleen Karaszewski, FNP-BCFamily Nurse Practitioner1982926226
- Amy Moore, RDNRegistered Dietitian1689550915
- Shawn Platt, D.O.Family Medicine Physician1851391353
- Dalyn Steed, PA-CMedical Physician Assistant1255736435
Verify Karen Lynn Ridenour in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license AP1993Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% more Medicare Part D claims than the average family nurse practitioner in 2024
1,851 Medicare Part D claims for 83 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 608 claims were for opioids.
Most prescribed
- Oxycodone Hcl375 claims
- Gabapentin134 claims
- Morphine Sulfate Er71 claims
- Oxycodone-Acetaminophen67 claims
- Albuterol Sulfate Hfa57 claims
- Lisinopril54 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.
Karen Lynn Ridenour among 5,933 family nurse practitioner records in Arizona
Karen Lynn Ridenour, FNP is one of 5,933 family nurse practitioner records with a practice address in Arizona. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 91% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2024 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
907 family nurse practitioner records list a practice address in Tucson
They are 907 of the 18,788 NPPES records with a practice address in Tucson, and 5,933 family nurse practitioner records in Arizona.
All 5,933 in Arizona → Every provider in Tucson → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Kathleen Andrea, FNPTucson, AZ 857051295701043
- Marcee Bushfield-Kahan, FNPTucson, AZ 857051871573873
- Steven Edelman, FNPTucson, AZ 857051871732727
- Laura Elliott, FNPTucson, AZ 857051093955023
- Anjelica GravesTucson, AZ 857051043442098
- Kathleen Karaszewski, FNP-BCTucson, AZ 857051982926226
- Mary Leon, FNP-BCTucson, AZ 857051295978799
- Julieanne Lepa, FNPTucson, AZ 857051306863071
Common questions
What is Karen Lynn Ridenour, FNP's NPI number?
Karen Lynn Ridenour, FNP's National Provider Identifier (NPI) is 1033205281, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Lynn Ridenour, FNP located?
The NPPES record lists a practice address at 2828 N Stone Ave, Tucson, AZ, 85705. Phone: (520) 245-6650. Providers update this record themselves, so call before visiting.
How can I verify Karen Lynn Ridenour, FNP's license?
NPPES lists Arizona license number AP1993, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Lynn Ridenour, FNP prescribe under Medicare Part D?
In 2024, Karen Lynn Ridenour, FNP had 1,851 Medicare Part D claims for 83 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.