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DR. GREGORY A GERLOCK MD
NPI 1114987740
Emergency Medicine in Bristol, TN

Active since March 27, 2006PECOS EnrolledAccepts Medicare Assignment
1 MEDICAL PARK BLVD, BRISTOL, TN 37620(423) 844-2100(423) 844-2120 Get Directions Write a Review

NPPES record last updated: July 7, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 7, 2021, Feb 27, 2017, Jan 25, 2017 (3 updates tracked since 2017).

About Dr. Gregory A Gerlock Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY A GERLOCK MD (NPI 1114987740) is an individual emergency medicine provider in Bristol, Tennessee, licensed in Tennessee (20852) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Hawkins County Memorial Hospital, and is a graduate of Medical College Of Georgia School Of Medicine (1989).

NPPES Registry Identity

NPI1114987740
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. GREGORY A GERLOCKCredential: MD
Location Address1 MEDICAL PARK BLVDBristol, TN 37620-7430
Mailing AddressPo Box 11724Knoxville, TN 37939-1724 · (423) 844-2100 · Fax (423) 844-2120
Phone(423) 844-2100
Fax(423) 844-2120
Sole ProprietorNo
Medical School CMSMedical College Of Georgia School Of MedicineGraduated 1989
Enumeration DateMarch 27, 2006
Last NPPES UpdateJuly 7, 20213 updates tracked since enumeration
NPPES CertifiedJuly 7, 2021
✔ NPI 1114987740 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in TN · 20852
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
1 MEDICAL PARK BLVD, Bristol, TN 37620
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Other Identifiers 1

Medicaid3066145TN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregory A Gerlock Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5698725117
PECOS Enrollment IDI20050124000127
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
51 services51 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
35 services33 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
31 services29 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Hawkins County Memorial Hospital

Acute Care Hospitals · Rogersville, TN
OwnershipVoluntary non-profit - Private
CMS Certification Number440032
Location851 Locust StreetRogersville, TN 37857 · Hawkins County
Emergency services

Hancock County Hospital

Critical Access Hospitals · Sneedville, TN
OwnershipVoluntary non-profit - Other
CMS Certification Number441313
Location1519 Main Street Hwy 33Sneedville, TN 37869 · Hancock County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37620 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$81.53 typical visit price
range $52.64 – $160.89
Typical copayment $20.38 (range $13.16 – $40.22)
Most-billed visit code 99203
Established Patient
$93.60 typical visit price
range $16.72 – $131.41
Typical copayment $23.40 (range $4.18 – $32.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CASSONDRA NICHOLE COMPTON CRNA
Nurse Anesthetist, Certified Registered
1 MEDICAL PARK BLVD
BRISTOL, TN 37620
Sullivan County (423) 844-2686
DAVID R HUDGENS M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
1 MEDICAL PARK BLVD
BRISTOL, TN 37620
Sullivan County (423) 844-3220
DR. JEAN MARIE MANCINI M.D.
Internal Medicine
1 MEDICAL PARK BLVD, STE 450W
BRISTOL, TN 37620
Sullivan County (423) 968-3713
THOMAS A KITTS MD
Emergency Medicine
1 MEDICAL PARK BLVD
BRISTOL, TN 37620
Sullivan County (423) 844-2100
LAURA ANN ELLER AGACNP
Nurse Practitioner (Critical Care Medicine)
1 MEDICAL PARK BLVD
BRISTOL, TN 37620
Sullivan County (423) 844-1121
DR. WALTER DAVIS ARNOLD JR. MD
Internal Medicine
1 MEDICAL PARK BLVD
BRISTOL, TN 37620
Sullivan County (423) 282-1480
DR. KARL E LAWRENCE M.D.
Internal Medicine
1 MEDICAL PARK BLVD
BRISTOL, TN 37620
Sullivan County (423) 844-1121
DR. MICHAEL WAYNE RENTZ MD
Pathology (Anatomic Pathology & Clinical Pathology)
1 MEDICAL PARK BLVD
BRISTOL, TN 37620
Sullivan County (423) 844-3220

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Gerlock's NPI number?

The NPI number for Gregory Gerlock is 1114987740. It was assigned to this individual provider in the NPPES registry on March 27, 2006.

Where is Gregory Gerlock located?

Gregory Gerlock practices at 1 Medical Park Blvd, Bristol, TN 37620. The listed phone number is (423) 844-2100.

What is Gregory Gerlock's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Gregory Gerlock enrolled in Medicare?

Yes. Gregory Gerlock is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Gregory Gerlock accept?

Health plans from Oscar Insurance Company list Gregory Gerlock as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Gregory Gerlock affiliated with any hospitals?

According to CMS data, Gregory Gerlock is affiliated with Hawkins County Memorial Hospital and Hancock County Hospital.

When was this NPI record last updated?

The NPPES record for Gregory Gerlock was last updated on July 7, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.