Mary R. Nelson, FNP-C
Family Nurse Practitioner · Ojai, CA
Mary R. Nelson, FNP-C is a family nurse practitioner with a practice address in Ojai, California, and NPI 1285846220, issued on May 3, 2007. Check the license (California 449374, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary R. Nelson
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 449374 CA
Self-reported in NPPES; status is on the state search - Practice location
- 117 Pirie RD, Ojai, CA 93023
- Phone
- (805) 646-7246
- Enumerated
- May 3, 2007
- Record last updated
- Aug 1, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140718000942); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 117 Pirie RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Linda ConradFamily Nurse Practitioner1982810073
- Mary Dial, M.D.Family Medicine Physician1962468553
- Bonnie Griffin, PAPhysician Assistant1801985114
- Carl Gross, M.D.Family Medicine Physician1497711451
- James Halverson, M.D.Family Medicine Physician1720044787
- Irina Rodriguez, D.D.S.General Practice Dentistry1780711580
Verify Mary R. Nelson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 449374Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% more Medicare Part D claims than the average family nurse practitioner in 2024
1,467 Medicare Part D claims for 295 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 25 claims were for opioids.
Most prescribed
- Atorvastatin Calcium130 claims
- Levothyroxine Sodium124 claims
- Losartan Potassium97 claims
- Lisinopril74 claims
- Escitalopram Oxalate58 claims
- Metformin Hcl46 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
- Primary Medical Group OF Ventura County IncOjai, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary R. Nelson among 16,966 family nurse practitioner records in California
Mary R. Nelson, FNP-C is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 7% of them.
- NPI issued2007 · 7% of these records are older, 87% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated1998 · median 2019 among the 6,793 with a school on file
- Record last updated2019 · 42% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 family nurse practitioner records list a practice address in Ojai
They are 9 of the 271 NPPES records with a practice address in Ojai, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Ojai → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Linda ConradOjai, CA 930231982810073
- Cathy Estill, FNPOjai, CA 930231477983005
- Laura Farhat, APN-BC FNPOjai, CA 930231194937102
- Michelle Griffith, FNPOjai, CA 930231326679762
- Joceline Lam, FNP-COjai, CA 930231346769700
- Deborah Maragopoulos, MSN FNPOjai, CA 930231730219171
- Patti Wicklund, FNP-BCOjai, CA 930231780373522
- Mary Ann Williamson, R.N. F.N.P.Ojai, CA 930231255756276
Common questions
What is Mary R. Nelson, FNP-C's NPI number?
Mary R. Nelson, FNP-C's National Provider Identifier (NPI) is 1285846220, issued on May 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary R. Nelson, FNP-C located?
The NPPES record lists a practice address at 117 Pirie RD, Ojai, CA, 93023. Phone: (805) 646-7246. Providers update this record themselves, so call before visiting.
How can I verify Mary R. Nelson, FNP-C's license?
NPPES lists California license number 449374, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mary R. Nelson, FNP-C prescribe under Medicare Part D?
In 2024, Mary R. Nelson, FNP-C had 1,467 Medicare Part D claims for 295 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.