DR. ROBERT DAVID SIMENSON (MD) – Family Medicine Physician, NPI 1942283221
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
13,194 FAMILY PRACTICE in CA
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Provider Addresses for DR. ROBERT DAVID SIMENSON (MD)
737, West Childs Avenue, Merced, Merced County, California, 95341, United States
MERCED, CA 953406805
Phone: (209) 383-1848
Fax: (209) 383-1296
Type: Mailing
847, West Childs Avenue, Merced, Merced County, California, 95341, United States
MERCED, CA 953416862
Phone: (866) 682-4842
Type: Location
3940 Sandpiper Ave
Merced, CA 953408372
Phone: (866) 682-4842
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $22.
Total Amount is formed as General ($22) + Research ($0) + Ownership ($0) = $22.
Last reported payment date: 2023-12-07 • Largest payer in this snapshot: Indivior Inc. ($22).
Total Amount
$22
General + Research + Ownership
Payments
1
Total payment records
General Amount
$22
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-12-07
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Indivior Inc. | $22 |
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: 2007-03-26
PECOS data refreshed: 2026-05-27
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 |
|---|---|---|---|---|
| I20070326000573 | 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 95340)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | CA | |
| Nephrology, Internal Medicine | CA | |
| - | CA | |
| Family Practice, Sports Medicine | CA | |
| Family Practice | CA | |
| Internal Medicine | CA | |
| Family Practice | CA | |
| Occupational Therapist In Private Practice | CA | |
| Clinical Social Worker | CA | |
| Physical Therapist In Private Practice | CA |
Reviews
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