Shannon Williams
Family Nurse Practitioner · Sebastopol, CA
Shannon Williams is a family nurse practitioner with a practice address in Sebastopol, California, and NPI 1023551785, issued on Nov 29, 2016. Check the license (California 844281, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Shannon Williams
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 844281 CA
Self-reported in NPPES; status is on the state search - Practice location
- 7416 Calder Ave, Sebastopol, CA 95472
- Phone
- (707) 303-5410
- Enumerated
- Nov 29, 2016
- Record last updated
- Nov 29, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 7416 Calder Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bill Uriarte, DCChiropractor1710603840
Verify Shannon Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 844281Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average family nurse practitioner in 2024
2,633 Medicare Part D claims for 120 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 123 claims were for opioids.
Most prescribed
- Atorvastatin Calcium158 claims
- Levothyroxine Sodium104 claims
- Amlodipine Besylate97 claims
- Olmesartan Medoxomil96 claims
- Gabapentin89 claims
- Hydrocodone-Acetaminophen88 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.
Industry payments in 2024: $68.27
2 payments; by number, the most common kind was food and beverage; the largest payer was Abiomed. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Shannon Williams among 16,966 family nurse practitioner records in California
Shannon Williams 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 2016, is newer than 35% of them.
- NPI issued2016 · 35% of these records are older, 60% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2016 · 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).
10 family nurse practitioner records list a practice address in Sebastopol
They are 10 of the 550 NPPES records with a practice address in Sebastopol, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Sebastopol → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Ellen Barbieri, NPSebastopol, CA 954721134929573
- Kathleen Brown, NPSebastopol, CA 954721245618453
- Tracy DempseySebastopol, CA 954721285017459
- Martha Doyle, FNPSebastopol, CA 954721902072739
- Marilyn Foster, FNPSebastopol, CA 954721679564215
- Joseph Hatheway, FNPSebastopol, CA 954721386296242
- Anita McNulty, FNP CNMSebastopol, CA 954721578853701
- Katherine Miller, FNP-CSebastopol, CA 954721346812914
Common questions
What is Shannon Williams's NPI number?
Shannon Williams's National Provider Identifier (NPI) is 1023551785, issued on Nov 29, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Shannon Williams located?
The NPPES record lists a practice address at 7416 Calder Ave, Sebastopol, CA, 95472. Phone: (707) 303-5410. Providers update this record themselves, so call before visiting.
How can I verify Shannon Williams's license?
NPPES lists California license number 844281, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Shannon Williams prescribe under Medicare Part D?
In 2024, Shannon Williams had 2,633 Medicare Part D claims for 120 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.