DR. JONATHAN SAM DAVIDSON (M.D.) – Gastroenterology Physician, NPI 1295891224
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,990 GASTROENTEROLOGY in CA
Provider Addresses for DR. JONATHAN SAM DAVIDSON (M.D.)
Ceres Post Office, 2-6, Main Street, Bridgend, Ceres, Fife, Scotland, KY15 5NA, United Kingdom
CERES, CA 953079032
Phone: (209) 751-7165
Type: Mailing
4206 TECHNOLOGY DR STE 2
MODESTO, CA 953568769
Phone: (209) 492-0735
Type: Location
1658 CITADELLA DR
ROSEVILLE, CA 957475022
Phone: (916) 699-8592
Type: Mailing
2288 AUBURN BLVD STE 101
SACRAMENTO, CA 958211619
Phone: (916) 699-8592
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 62 Open Payments records for all available years, with a total value of $1,003.
Total Amount is formed as General ($1,003) + Research ($0) + Ownership ($0) = $1,003.
Last reported payment date: 2024-12-17 • Largest payer in this snapshot: Janssen Biotech, Inc. ($422).
Total Amount
$1,003
General + Research + Ownership
Payments
62
Total payment records
General Amount
$1,003
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Janssen Biotech, Inc. | $422 |
| ABBVIE INC. | $276 |
| Regeneron Healthcare Solutions, Inc. | $75 |
| Celgene Corporation | $57 |
| Merck Sharp & Dohme LLC | $35 |
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: 2009-11-02
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 |
|---|---|---|---|---|
| I20091102000219 | I | Gastroenterology | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 152 | 152 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 104 | 88 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 87 | 86 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 41 | 40 | $0 |
| 95810 | Sleep study in sleep lab (6 years or older) | 12 | 12 | $0 |
Insurance plans in this area (ZIP 95307)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | CA | 95811 | Sleep monitoring of patient (6 years or older) in sleep lab with continued pressured respiratory assistance by mask or breathing tube | 32 | 29 |
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