E R ASSOCIATES INC
NPI 1013991835
Dermatology in Muskogee, OK

Active since December 05, 2005
1524 W OKMULGEE ST, MUSKOGEE, OK 74401(918) 682-5397(918) 682-2663 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About E R Associates Inc NPPES

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

E R ASSOCIATES INC (NPI 1013991835) is a healthcare organization registered as a dermatology in Muskogee, Oklahoma and active in the NPI registry since December 2005. The organization lists Jeff D Endsley, Dermatologist, as its authorized official.

NPPES Registry Identity

NPI1013991835
Entity TypeOrganization
Primary Taxonomy207N00000X
Legal Business NameE R ASSOCIATES INC
Location Address1524 W OKMULGEE STMuskogee, OK 74401-6741
Mailing Address1524 W Okmulgee StMuskogee, OK 74401-6741 · (918) 682-5397 · Fax (918) 682-2663
Fax(918) 682-2663
Organization SubpartNo
Authorized OfficialJeff D EndsleyDermatologist · (918) 682-5397
Enumeration DateDecember 5, 2005
Last NPPES UpdateAugust 22, 2020
✔ NPI 1013991835 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License✔ Licensed in OK · 3027
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
1524 W OKMULGEE ST, Muskogee, OK 74401

Other Identifiers 1

Other445587563001Bcbs

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

E R Associates Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to E R Associates Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Dermatology
NPI 1639208937
1524 W OKMULGEE ST
Muskogee, OK 74401
(918) 682-5397
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 E R Associates Inc's NPI number?

The NPI number for E R Associates Inc is 1013991835. It was assigned to this organization in the NPPES registry on December 5, 2005.

Where is E R Associates Inc located?

E R Associates Inc is located at 1524 W Okmulgee St, Muskogee, OK 74401. The listed phone number is (918) 682-5397.

What is E R Associates Inc's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is E R Associates Inc enrolled in Medicare?

Yes. E R Associates Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through E R Associates Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Dermatology) reassigns their Medicare billing to E R Associates Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for E R Associates Inc was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.