Elizabeth Mary Ryan, NP
Adult Health Nurse Practitioner · Petaluma, CA
Elizabeth Mary Ryan, NP is an adult health nurse practitioner with a practice address in Petaluma, California, and NPI 1669539805, issued on Jan 3, 2007. Check the license (California 495390, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Elizabeth Mary Ryan
- Credential
- NP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- 495390 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3900 Lakeville Hwy, Petaluma, CA 94954
- Phone
- (707) 765-3960
- Enumerated
- Jan 3, 2007
- Record last updated
- Feb 11, 2022
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 1,405 in California → Look up another NPI →
Also registered at 3900 Lakeville Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew AndersonPharmacist1336673110
- Suzanne Aoyagi, PHARMDPharmacist1497289268
- John Arden, PHDPsychologist1841351053
- Caroline Barnhart, MDObstetrics & Gynecology Physician1437618774
- Alexis Becker, CNMMidwife1225112584
- Sharina Belani, MDInternal Medicine Physician1700958550
Verify Elizabeth Mary Ryan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 495390Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
275 Medicare Part D claims for 177 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Gavilyte-C73 claims
- Peg-3350 And Electrolytes51 claims
- Colestipol Hcl27 claims
- Motegrity12 claims
- Pantoprazole Sodium11 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.
Elizabeth Mary Ryan among 1,405 adult health nurse practitioner records in California
Elizabeth Mary Ryan, NP is one of 1,405 adult health nurse practitioner records with a practice address in California. 56% 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 18% of them.
- NPI issued2007 · 18% of these records are older, 70% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileNo · 31% of these records are
- Record last updated2022 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Health Nurse Practitioner providers in California
There are 1,405 adult health nurse practitioner records in California.
All 1,405 in California → Every provider in Petaluma → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Stephanie Bedolla, NP-CPetaluma, CA 949541265717565
- Leah Heinrich, NPPetaluma, CA 949541043934482
- Judith Komatsu, N.P, L.A.C.Petaluma, CA 949541346261005
- Melissa Wong, NPPetaluma, CA 949541790184075
- Jennifer Okonsky, RN, NP, PHDPetaluma, CA 949521306635024
- Merri Martori, NPNovato, CA 949491295948677
- Amy Schmuecker, NPNovato, CA 949451174828560
- Margaret Hanna, NURSE PRACTITIONERSan Quentin, CA 949641811447592
Common questions
What is Elizabeth Mary Ryan, NP's NPI number?
Elizabeth Mary Ryan, NP's National Provider Identifier (NPI) is 1669539805, issued on Jan 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth Mary Ryan, NP located?
The NPPES record lists a practice address at 3900 Lakeville Hwy, Petaluma, CA, 94954. Phone: (707) 765-3960. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth Mary Ryan, NP's license?
NPPES lists California license number 495390, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Elizabeth Mary Ryan, NP prescribe under Medicare Part D?
In 2024, Elizabeth Mary Ryan, NP had 275 Medicare Part D claims for 177 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.