Katherine Silbermann, NP-C
Family Nurse Practitioner · Walnut Creek, CA
Katherine Silbermann, NP-C is a family nurse practitioner with a practice address in Walnut Creek, California, and NPI 1518614783, issued on Mar 7, 2022. Check the license (California 95020202, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Silbermann
- Credential
- NP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 95020202 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2637 Shadelands Dr Ste D, Walnut Creek, CA 94598
- Phone
- (925) 930-9978
- Enumerated
- Mar 7, 2022
- Record last updated
- Feb 27, 2025
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Verify Katherine Silbermann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95020202Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% more Medicare Part D claims than the average family nurse practitioner in 2024
1,381 Medicare Part D claims for 264 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium92 claims
- Amlodipine Besylate91 claims
- Rosuvastatin Calcium83 claims
- Levothyroxine Sodium82 claims
- Hydrochlorothiazide63 claims
- Losartan Potassium60 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: $448.99
16 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. 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.
Katherine Silbermann among 16,966 family nurse practitioner records in California
Katherine Silbermann, NP-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 2022, is newer than 68% of them.
- NPI issued2022 · 68% of these records are older, 25% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2025 · 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).
107 family nurse practitioner records list a practice address in Walnut Creek
They are 107 of the 6,170 NPPES records with a practice address in Walnut Creek, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Walnut Creek → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Cheri Arbizu, MSN, FNPWalnut Creek, CA 945981205922630
- Shellie Campos, NPWalnut Creek, CA 945981982871331
- Melanie Charles, N.P.Walnut Creek, CA 945981972792950
- Ronald Connolly, FNPWalnut Creek, CA 945981710296116
- Janice Dolan, MSN/FNPWalnut Creek, CA 945981982680864
- Martha Eppenberger, FNPWalnut Creek, CA 945981710284096
- Sylvia Esperanza, NPWalnut Creek, CA 945981104067297
- Shawna Joaquin, NP-CWalnut Creek, CA 945981942436811
Common questions
What is Katherine Silbermann, NP-C's NPI number?
Katherine Silbermann, NP-C's National Provider Identifier (NPI) is 1518614783, issued on Mar 7, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Silbermann, NP-C located?
The NPPES record lists a practice address at 2637 Shadelands Dr Ste D, Walnut Creek, CA, 94598. Phone: (925) 930-9978. Providers update this record themselves, so call before visiting.
How can I verify Katherine Silbermann, NP-C's license?
NPPES lists California license number 95020202, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Silbermann, NP-C prescribe under Medicare Part D?
In 2024, Katherine Silbermann, NP-C had 1,381 Medicare Part D claims for 264 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.