DR. CHRISTOPHER JOEL GRAINGER (M.D.) – Geriatric Medicine (Family Medicine) Physician, NPI 1255398798
Geriatric Medicine (Family Medicine) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
6,722 FAMILY PRACTICE in FL
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Provider Addresses for DR. CHRISTOPHER JOEL GRAINGER (M.D.)
West Marion Community Hospital, 4600, Southwest 46th Court, Ocala, Marion County, Florida, 34474, United States
SUITE 310
OCALA, FL 344745752
Phone: (352) 351-0463
Fax: (352) 620-8639
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 14 Open Payments records for all available years, with a total value of $266.
Total Amount is formed as General ($266) + Research ($0) + Ownership ($0) = $266.
Last reported payment date: 2024-12-10 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($142).
Total Amount
$266
General + Research + Ownership
Payments
14
Total payment records
General Amount
$266
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $142 |
| Amgen Inc. | $37 |
| Exact Sciences Corporation | $29 |
| Novartis Pharmaceuticals Corporation | $16 |
| PFIZER INC. | $14 |
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: 2010-03-12
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 |
|---|---|---|---|---|
| I20100312000681 | I | Family Practice | FL | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 288 | 153 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 187 | 111 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 143 | 143 | $0 |
| 81003 | Automated urinalysis test | 18 | 17 | $0 |
Insurance plans in this area (ZIP 34474)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | FL | |
| Family Practice | FL | |
| Nurse Practitioner | FL | |
| General Practice | FL | |
| General Practice | FL | |
| Physician Assistant | FL | |
| General Practice | FL | |
| General Practice, Family Practice | FL | |
| Family Practice | FL | |
| - | FL |
Reviews
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