Sharon Gertz Rouillard, N.P.
Nurse Practitioner · San Ramon, CA
Sharon Gertz Rouillard, N.P. is a nurse practitioner with a practice address in San Ramon, California, and NPI 1154462323, issued on Feb 9, 2007. Check the license (California 17101, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sharon Gertz Rouillard
- Credential
- N.P.
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 17101 CA
650324 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5601 Norris Canyon RD, San Ramon, CA 94583
- Phone
- (925) 830-0644
- Enumerated
- Feb 9, 2007
- Record last updated
- Jan 11, 2022
- Fax
- (925) 830-0868
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 5601 Norris Canyon RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tsuling Chang, M.D.Dermatology Physician1154495240
- Sandy Chhiv, FNPFamily Nurse Practitioner1487102794
- Bradford Flagg, M.D.Family Medicine Physician1346323086
- Jayaram Hariharan, M.D.Family Medicine Physician1790004638
Verify Sharon Gertz Rouillard in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 17101Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average nurse practitioner in 2024
73 Medicare Part D claims for 58 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Nitrofurantoin Mono-Macro12 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.
Sharon Gertz Rouillard among 8,223 nurse practitioner records in California
Sharon Gertz Rouillard, N.P. is one of 8,223 nurse practitioner records with a practice address in California. 65% 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, 73% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 42% of these records are
- Record last updated2022 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in California
There are 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in San Ramon → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Maria Christina Fernandez, MSN, NPSan Ramon, CA 945831295247583
- Evaline Fuong, NPSan Ramon, CA 945831114755592
- Kathleen Geier, NP, RN, CNSSan Ramon, CA 945831174549729
- Debora Kilborn, NPSan Ramon, CA 945831699872796
- Sachie Nguyen Trung, NPSan Ramon, CA 945831023218716
- Kamal Singh, FNPSan Ramon, CA 945831326910902
- Flora Ting, NPSan Ramon, CA 945831699814442
- Yan Fernandez-Carvajal, NPSan Ramon, CA 945821508627183
Common questions
What is Sharon Gertz Rouillard, N.P.'s NPI number?
Sharon Gertz Rouillard, N.P.'s National Provider Identifier (NPI) is 1154462323, issued on Feb 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Sharon Gertz Rouillard, N.P. located?
The NPPES record lists a practice address at 5601 Norris Canyon RD, San Ramon, CA, 94583. Phone: (925) 830-0644. Providers update this record themselves, so call before visiting.
How can I verify Sharon Gertz Rouillard, N.P.'s license?
NPPES lists California license number 17101, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Sharon Gertz Rouillard, N.P. prescribe under Medicare Part D?
In 2024, Sharon Gertz Rouillard, N.P. had 73 Medicare Part D claims for 58 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.