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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

GREGORY C MARCUM MD
NPI 1992749600
Emergency Medicine in Kingsport, TN

Active since June 15, 2006PECOS Enrolled
130 W RAVINE RD, KINGSPORT, TN 37660(423) 224-4000 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Gregory C Marcum Md NPPES

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

GREGORY C MARCUM MD (NPI 1992749600) is an individual emergency medicine provider in Kingsport, Tennessee, licensed in Tennessee (19016) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1992749600
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameGREGORY C MARCUMCredential: MD
Location Address130 W RAVINE RDKingsport, TN 37660-3810
Mailing Address551 Main St, Third FloorJohnstown, PA 15901-2032 · (814) 539-5724 · Fax (814) 536-7092
Phone(423) 224-4000
Sole ProprietorNo
Enumeration DateJune 15, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1992749600 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 · 19016
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.
130 W RAVINE RD, Kingsport, TN 37660
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Other Identifiers 1

Medicaid3034295TN

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gregory C Marcum Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37660 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.

CLAIRE ELLIOTT PHARMD
Pharmacist
130 W RAVINE RD
KINGSPORT, TN 37660
Sullivan County (423) 224-4000
WPS PROVIDERS INC
General Practice
130 W RAVINE RD
KINGSPORT, TN 37660
Sullivan County (423) 224-4000
JAMES ROBERT BECK PHARMACIST
Pharmacist
130 W RAVINE RD, WELLMONT OUTPATIENT PHARMACY
KINGSPORT, TN 37660
Sullivan County (423) 224-6860
MRS. REKHA S GUPTA OTR
Occupational Therapist
130 W RAVINE RD
KINGSPORT, TN 37660
Sullivan County (423) 224-5535
MRS. STACEY ANN RYDER CRNA
Nurse Anesthetist, Certified Registered
130 W RAVINE RD
KINGSPORT, TN 37660
Sullivan County (423) 224-4000
DR. HETVI KIRITKUMAR JOSHI M.D.
Hospitalist
130 W RAVINE RD
KINGSPORT, TN 37660
Sullivan County (423) 224-3628
SHERRY LYNN GOODE NP
Nurse Practitioner (Family)
130 W RAVINE RD
KINGSPORT, TN 37660
Sullivan County (423) 224-3628
PATRINA NICOLYN CRADIC FNP-C
Nurse Practitioner (Family)
130 W RAVINE RD
KINGSPORT, TN 37660
Sullivan County (423) 224-4000

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 Marcum's NPI number?

The NPI number for Gregory Marcum is 1992749600. It was assigned to this individual provider in the NPPES registry on June 15, 2006.

Where is Gregory Marcum located?

Gregory Marcum practices at 130 W Ravine Rd, Kingsport, TN 37660. The listed phone number is (423) 224-4000.

What is Gregory Marcum's specialty?

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

Is Gregory Marcum enrolled in Medicare?

Yes. Gregory Marcum is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Gregory Marcum was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days 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.