Holston Medical Group

  • Multi-specialty group
  • Kingsport, TN
  • Core specialty: Primary care
NPI1831110667PAC ID8224935754Dmand IDNG-MGR-095425
Total HCPs
307
Physicians (MD/DO)
153
Nurses and PAs
133
Executives
595
Practice locations
37
Main site
105 W Stone Dr, Kingsport, TN 37660-3256
Main phone
(423) 230-2420
Specialty areas
14, led by primary care
Website and social

Parent organization

Holston Medical Group

Physician practice platform · Kingsport, Tennessee

Ultimate parent organization

UnitedHealth Group

Healthcare holding company · Eden Prairie, Minnesota

Find the right contacts among 595 executives and 307 HCPs

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Holston Medical Group is a multi-specialty medical group with 37 practice locations in Tennessee and Virginia

Holston Medical Group is based in Kingsport, Tennessee, part of UnitedHealth Group.

Sources: NPPES NPI Registry (CMS); Doctors and Clinicians National Downloadable File (CMS); Dmand AI Org Hierarchy Data; and Dmand AI Affiliation Data

Samantha Sizemore is chief operating officer of Holston Medical Group

Dmand AI tracks 595 executives and staff leaders at Holston Medical Group. Waterfall enrichment finds their professional emails, personal emails and mobile numbers.

Source: Dmand AI Executive Data

Holston Medical Group's NPI is 1831110667 and its PAC ID is 8224935754

Identifiers
Primary NPI (Type 2)
1831110667NPI Registry (opens in a new tab)
NPIs held
2
Medicare PAC ID
8224935754
Dmand ID
NG-MGR-095425
Medicare enrollment
Enrolled (PAC ID on file)
Contact
Main site address
105 W Stone Dr, Kingsport, TN 37660-3256
Main phone
(423) 230-2420
Executive emails and mobiles
Get contacts
Classification
Group type
Multi-specialty
Core specialty
Primary care
Specialty areas
14
Site structure
Multi-site
Ownership model
Payer
Leadership
Physician-led
Medicare Part B payments
$15.6M
Legal name
Holston Medical Group PC

Sources: NPPES NPI Registry (CMS); Doctors and Clinicians National Downloadable File (CMS); Dmand AI Org Hierarchy Data; Dmand AI Organization Profile Data; and Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data

Holston Medical Group is part of UnitedHealth Group

Dmand AI places Holston Medical Group under Holston Medical Group, a physician practice platform, part of UnitedHealth Group.

  • UnitedHealth GroupHealthcare holding company
  • OptumBrand and division of a system
  • Holston Medical GroupPhysician practice platform
  • Holston Medical GroupMulti-specialty medical group · Kingsport, TN
  • 3 other medical groups

3 other medical groups are part of Holston Medical Group

+1 more medical groups in Holston Medical GroupAvailable with a free account

Source: Dmand AI Org Hierarchy Data

Org hierarchy

Map Holston Medical Group's entire network

See how Holston Medical Group connects to UnitedHealth Group: its parent organizations, sister groups and every site of care in between, with the HCPs and leaders at each one.

Holston Medical Group has 153 physicians among 307 HCPs

Physicians (MD, DO)153
Nurses113
Physician assistants20
Other clinicians21

Holston Medical Group physicians by specialty

  1. Family medicine57
  2. Pediatrics18
  3. Internal medicine16
  4. Obstetrics and gynecology11
  5. Gastroenterology6

Share of the group's 153 physicians.

Holston Medical Group physicians

View all 307 HCPs

Sources: NPPES NPI Registry (CMS); Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Affiliation Data

Holston Medical Group has 37 practice locations in Tennessee and Virginia

Full footprint

See every site where Holston Medical Group HCPs practice

Open all 37 practice locations and 13 hospitals with facility phones, patient visits and the HCPs at each site.

Holston Medical Group covers 14 specialty areas, led by primary care

Primary care is Holston Medical Group's core specialty, and its HCPs practice 19 subspecialties in all.

  • Primary careCore
  • Dental and oral surgery
  • Dermatology
  • Emergency and hospital medicine
  • ENT and audiology
  • Ob/gyn and women's health
  • Orthopedics and sports medicine
  • Pathology and laboratory
  • Pediatrics
  • Podiatry
  • Rehabilitation and therapy
  • Rheumatology, allergy and immunology
  • Surgery
  • Urology and nephrology

Sources: Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Affiliation Data

Dmand AI tracks 1 EHR vendor at Holston Medical Group

Vendor and product names for each practice location are available with a free account.

EHR systems at Holston Medical Group
SiteEHR vendorProduct
Main siteAvailable with a free accountAvailable with a free account
36 other practice locationsAvailable with a free accountAvailable with a free account

Source: Dmand AI Technology Install Data

Primary care groups in Tennessee similar in size to Holston Medical Group

These primary care groups have the closest number of HCPs to Holston Medical Group.

See all 1,216 primary care groups in Tennessee

Sources: Dmand AI Affiliation Data; and Dmand AI Peer Benchmarks

Sources for Holston Medical Group data

Sources for the data on this page
Data on this pageSource
NPI, PAC ID and addressNPPES NPI Registry (CMS) (opens in a new tab)Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Dmand ID, phone, website, LinkedIn and group profileDmand AI Org Hierarchy DataDmand AI Organization Profile Data
Medicare Part B paymentsMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
Parent organizations and sister groupsDmand AI Org Hierarchy Data
HCPs and physician specialtiesNPPES NPI Registry (CMS) (opens in a new tab)Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Affiliation Data
Specialty areasDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Affiliation Data
Practice locations and hospitalsDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data
Executives and departmentsDmand AI Executive Data
EHR vendorsDmand AI Technology Install Data
Similar groupsDmand AI Affiliation DataDmand AI Peer Benchmarks

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Holston Medical Group

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Holston Medical Group's NPI number?

Holston Medical Group's primary NPI (Type 2) is 1831110667. The group holds 2 NPIs in all.

What is Holston Medical Group's PAC ID?

Holston Medical Group's Medicare PAC ID is 8224935754, which means the group is enrolled in Medicare.

How many locations does Holston Medical Group have?

Dmand AI links Holston Medical Group to 37 practice locations in Tennessee and Virginia. Its main site is at 105 W Stone Dr, Kingsport, TN 37660-3256.

What is Holston Medical Group's phone number?

Holston Medical Group's main phone number is (423) 230-2420.

Who owns Holston Medical Group?

Dmand AI places Holston Medical Group under Holston Medical Group, a physician practice platform, part of UnitedHealth Group.

How many physicians does Holston Medical Group have?

Dmand AI links 153 physicians and 307 HCPs in all to Holston Medical Group.

What specialties does Holston Medical Group cover?

Holston Medical Group covers 14 specialty areas, led by primary care. The largest physician specialties are family medicine (57), pediatrics (18) and internal medicine (16).

What hospitals do Holston Medical Group HCPs practice at?

Holston Medical Group HCPs practice at 13 hospitals with 5 or more of the group's HCPs, led by Holston Valley Medical Center and Johnson City Medical Center.

Who leads Holston Medical Group?

Leaders at Holston Medical Group include Samantha Sizemore (Chief Operating Officer), Samantha Sizemore (Chief Operating Officer) and Shawna Armstrong (Chief Financial Officer).

How much does Holston Medical Group receive from Medicare?

CMS data shows $15.6 million in Medicare Part B payments to Holston Medical Group.

What other medical groups are part of Holston Medical Group?

Holston Medical Group has 3 other medical groups in Dmand AI, including The Doctor's Office and The Urology Clinic.

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