DR. WILLIAM D DRINNON (MD) – Internal Medicine Physician, NPI 1831174168
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,527 INTERNAL MEDICINE in TN
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Provider Addresses for DR. WILLIAM D DRINNON (MD)
3370, Jenkins Road, Chattanooga, Hamilton County, East Tennessee, Tennessee, 37421, United States
CHATTANOOGA, TN 37421
Phone: (423) 648-8005
Fax: (423) 648-8006
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 2 Open Payments records for all available years, with a total value of $168.
Total Amount is formed as General ($168) + Research ($0) + Ownership ($0) = $168.
Last reported payment date: 2024-04-11 • Largest payer in this snapshot: Bard Peripheral Vascular, Inc. ($146).
Total Amount
$168
General + Research + Ownership
Payments
2
Total payment records
General Amount
$168
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-04-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Bard Peripheral Vascular, Inc. | $146 |
| Novo Nordisk Inc | $23 |
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: 2010-09-01
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 |
|---|---|---|---|---|
| I20100901000284 | I | Internal Medicine | TN | 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 |
|---|---|---|---|---|
| 36415 | Insertion of needle into vein for collection of blood sample | 1,049 | 334 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 738 | 317 | $0 |
| 80048 | Blood test, basic group of blood chemicals (calcium, total) | 562 | 252 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 556 | 269 | $0 |
| 80053 | Blood test, comprehensive group of blood chemicals | 299 | 232 | $0 |
Insurance plans in this area (ZIP 37421)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | TN | |
| Internal Medicine | TN | |
| Internal Medicine | TN | |
| Internal Medicine | TN | |
| Family Practice | TN | |
| - | TN | |
| Internal Medicine | TN | |
| Internal Medicine | TN | |
| Family Practice | TN | |
| Internal Medicine | TN |
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