KAREN WEINBAUM (MD) – Family Medicine Physician, NPI 1861842809
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
13,237 FAMILY PRACTICE in CA
Provider Addresses for KAREN WEINBAUM (MD)
2500 Alhambra Ave
Martinez, CA 945533156
Phone: (925) 370-5200
Type: Location
372, West Cypress Avenue, Reedley, Fresno County, California, 93654, United States
REEDLEY, CA 936542113
Phone: (559) 499-6450
Type: Location
Contra Costa Regional Medical Center, 2500, Alhambra Avenue, Martinez, Contra Costa County, California, 94553, United States
MARTINEZ, CA 945533156
Phone: (925) 370-5200
Type: Mailing
1171 MISSION ST
SAN FRANCISCO, CA 941031519
Phone: (628) 754-9616
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2019-10-07
PECOS data refreshed: 2026-06-15
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20191007001420 | I | Family Practice | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 94553)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| - | CA | |
| - | CA | |
| - | CA | |
| - | CA | |
| - | CA | |
| Clinical Psychologist | CA | |
| - | CA | |
| Clinical Social Worker | CA | |
| - | CA |
Reviews
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