Karen Tinder, NP
Family Nurse Practitioner · Walnut Creek, CA
Karen Tinder, NP is a family nurse practitioner with a practice address in Walnut Creek, California, and NPI 1225442080, issued on Jun 19, 2014. Check the license (California 488386, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Tinder
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 488386 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2637 Shadelands Dr, Walnut Creek, CA 94598
- Phone
- (925) 945-6600
- Enumerated
- Jun 19, 2014
- Record last updated
- Feb 11, 2025
- Medicare enrollment
- Enrolled (PECOS I20190603000617); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 2637 Shadelands Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Heidi Chang, MDObstetrics & Gynecology Physician1649681982
Verify Karen Tinder in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 488386Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average family nurse practitioner in 2024
2,922 Medicare Part D claims for 391 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims. 17 claims were for opioids.
Most prescribed
- Levothyroxine Sodium212 claims
- Ozempic151 claims
- Atorvastatin Calcium96 claims
- Jardiance88 claims
- Amlodipine Besylate77 claims
- Trazodone Hcl63 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: $3,515.92
116 payments; by number, the most common kind was food and beverage; the largest payer was Amgen 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.
Bills Medicare through one group practice
- John Muir Physician NetworkLafayette, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Tinder among 16,966 family nurse practitioner records in California
Karen Tinder, NP 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 2014, is newer than 27% of them.
- NPI issued2014 · 27% of these records are older, 69% 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 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 Karen Tinder, NP's NPI number?
Karen Tinder, NP's National Provider Identifier (NPI) is 1225442080, issued on Jun 19, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Karen Tinder, NP located?
The NPPES record lists a practice address at 2637 Shadelands Dr, Walnut Creek, CA, 94598. Phone: (925) 945-6600. Providers update this record themselves, so call before visiting.
How can I verify Karen Tinder, NP's license?
NPPES lists California license number 488386, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Tinder, NP prescribe under Medicare Part D?
In 2024, Karen Tinder, NP had 2,922 Medicare Part D claims for 391 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.