Karen Tinder, NP
NPI 1225442080 · Family Nurse Practitioner · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Tinder, NP is a Family Nurse Practitioner provider in Walnut Creek, CA (NPI 1225442080).
Provider details
- NPI number
- 1225442080
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 488386 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
6 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
981 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 319 | $117 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 264 | $86 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 132 | $16 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 66 | $15 |
| Hemoglobin A1c Level83036 | 47 | $10 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 68 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 212 | 74 |
| Semaglutidebrand: Ozempic | 151 | 42 |
| Atorvastatin Calcium | 96 | 29 |
| Empagliflozinbrand: Jardiance | 88 | 28 |
| Amlodipine Besylate | 77 | 24 |
| Trazodone Hcl | 63 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,516 across 116 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (5)
- 2700 Grant St Ste 200Concord, CA 94520-2270Phone: (925) 674-2609
- 2425 East StSuite 15Concord, CA 94520Phone: (925) 682-9232
- 2425 East StSuite 15Concord, CA 94520Phone: (925) 682-9232
- 3466 Mt Diablo Blvd Ste C104Lafayette, CA 94549Phone: (925) 674-2609Fax: (925) 674-2211
- 1450 Treat Blvd # 160Walnut Creek, CA 94597-2168Phone: (925) 296-9000
Registry dates
- Enumerated
- 2014-06-19
- Last updated
- 2025-02-11
- Certified
- 2025-02-11
Frequently asked questions
- What is Karen Tinder's NPI number?
- Karen Tinder's National Provider Identifier (NPI) is 1225442080, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Tinder's specialty?
- Karen Tinder is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Tinder located?
- Karen Tinder's practice location on file with NPPES is 2637 Shadelands Dr, Walnut Creek, CA 94598-2512.
- What is Karen Tinder's phone number?
- The practice phone number listed in the NPPES registry for Karen Tinder is (925) 945-6600.
- Does Karen Tinder accept Medicare?
- Karen Tinder is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Tinder's NPI active?
- Yes — Karen Tinder's NPI (1225442080) is active in the NPPES registry as of the last update on 2025-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.