DR. CHARLES FREDERIC IV WHITAKER (M.D.) – Family Medicine Physician, NPI 1821054966
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,418 FAMILY PRACTICE in MI
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Provider Addresses for DR. CHARLES FREDERIC IV WHITAKER (M.D.)
436, Marshall Street, Coldwater, Branch County, Michigan, 49036, United States
COLDWATER, MI 490361139
Phone: (517) 278-6600
Fax: (517) 278-0600
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 3 Open Payments records for all available years, with a total value of $108.
Total Amount is formed as General ($108) + Research ($0) + Ownership ($0) = $108.
Last reported payment date: 2024-08-07 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($70).
Total Amount
$108
General + Research + Ownership
Payments
3
Total payment records
General Amount
$108
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-07
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $70 |
| Novo Nordisk Inc | $19 |
| Boston Scientific Corporation | $19 |
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: 2004-03-05
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 |
|---|---|---|---|---|
| I20040305000633 | I | Family Practice | MI | 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 |
|---|---|---|---|---|
| 99309 | Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 923 | 425 | $0 |
| 99306 | Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 529 | 435 | $0 |
| 99308 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 476 | 260 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 360 | 123 | $0 |
| 99305 | Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | 140 | 127 | $0 |
Insurance plans in this area (ZIP 49036)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| FAMILY MEDICINE | MI | 83036 | Hemoglobin A1C level | 87 | 61 |
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