E R Associates Inc
NPI 1013991835 · Dermatology Physician · Muskogee, OK
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
E R Associates Inc is a Dermatology Physician organization in Muskogee, OK (NPI 1013991835).
Provider details
- NPI number
- 1013991835
- Entity type
- Organization
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Jeff Endsley, Dermatologist(918) 682-5397
- License
- 3027 (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
20 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
- 2005-12-05
- Last updated
- 2020-08-22
Frequently asked questions
- What is E R Associates Inc's NPI number?
- E R Associates Inc's National Provider Identifier (NPI) is 1013991835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is E R Associates Inc?
- E R Associates Inc is classified in the NPPES registry as Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is E R Associates Inc located?
- E R Associates Inc's practice location on file with NPPES is 1524 W Okmulgee St, Muskogee, OK 74401-6741.
- What is E R Associates Inc's phone number?
- The practice phone number listed in the NPPES registry for E R Associates Inc is (918) 682-5397.
- Does E R Associates Inc accept Medicare?
- E R Associates Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for E R Associates Inc?
- The authorized official listed on E R Associates Inc's NPPES record is Jeff Endsley, Dermatologist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is E R Associates Inc's NPI active?
- Yes — E R Associates Inc's NPI (1013991835) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.