Landmark Cancer Center Gp LLC
NPI 1598102345 · Radiation Oncology Physician · Muskogee, OK
Landmark Cancer Center Gp LLC is a Radiation Oncology Physician organization in Muskogee, OK (NPI 1598102345).
Provider details
- NPI number
- 1598102345
- Entity type
- Organization
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Lisa Sooter, Owner(972) 573-4611
- License
- 28969 (OK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-06-03
- Last updated
- 2015-07-22
Frequently asked questions
- What is Landmark Cancer Center Gp LLC's NPI number?
- Landmark Cancer Center Gp LLC's National Provider Identifier (NPI) is 1598102345, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Landmark Cancer Center Gp LLC?
- Landmark Cancer Center Gp LLC is classified in the NPPES registry as Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Landmark Cancer Center Gp LLC located?
- Landmark Cancer Center Gp LLC's practice location on file with NPPES is 301 N 32nd St, Muskogee, OK 74401-2106.
- What is Landmark Cancer Center Gp LLC's phone number?
- The practice phone number listed in the NPPES registry for Landmark Cancer Center Gp LLC is (918) 683-2000.
- Who is the authorized official for Landmark Cancer Center Gp LLC?
- The authorized official listed on Landmark Cancer Center Gp LLC's NPPES record is Lisa Sooter, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Landmark Cancer Center Gp LLC's NPI active?
- Yes — Landmark Cancer Center Gp LLC's NPI (1598102345) is active in the NPPES registry as of the last update on 2015-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.