DR. GREGORY A GERLOCK (MD) – Emergency Medicine Physician, NPI 1114987740
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,131 EMERGENCY MEDICINE in TN
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Provider Addresses for DR. GREGORY A GERLOCK (MD)
PO BOX 11724
KNOXVILLE, TN 379391724
Phone: (423) 844-2100
Fax: (423) 844-2120
Type: Mailing
Bristol Regional Medical Center, 1, Medical Park Boulevard, Bristol, Sullivan County, Tennessee, 37620, United States
BRISTOL, TN 376207430
Phone: (423) 844-2100
Fax: (423) 844-2120
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2011-07-12
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20050124000127 | I | Emergency Medicine | TN | TBD |
| I20110712000257 | I | Emergency Medicine | VA | 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 |
|---|---|---|---|---|
| 99284 | Emergency department visit with moderate level of medical decision making | 57 | 55 | $0 |
| 99285 | Emergency department visit with high level of medical decision making | 34 | 34 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 33 | 31 | $0 |
Insurance plans in this area (ZIP 37939)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | VA | |
| Emergency Medicine | TN | |
| - | TN | |
| Internal Medicine | TN | |
| - | TN | |
| - | TN | |
| Emergency Medicine, Hospitalist | MI | |
| Emergency Medicine | TN | |
| Emergency Medicine | NC | |
| Emergency Medicine | NC |
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