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GRETCHAN B LOPEZ DO
NPI 1629605258
Pediatrics in Tahlequah, OK

Active since March 24, 2020PECOS Enrolled
19600 E ROSS ST, TAHLEQUAH, OK 74464(539) 234-1000 Get Directions Write a Review

NPPES record last updated: January 17, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 13, 2020, Jul 10, 2020, Mar 24, 2020 (3 updates tracked since 2020).

About Gretchan B Lopez Do NPPES

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

GRETCHAN B LOPEZ DO (NPI 1629605258) is an individual pediatrics provider in Tahlequah, Oklahoma, licensed in Oklahoma (7394) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1629605258
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameGRETCHAN B LOPEZCredential: DO
Location Address19600 E ROSS STTahlequah, OK 74464-0545
Mailing Address19600 E Ross StTahlequah, OK 74464-0545 · (539) 234-1000
Phone(539) 234-1000
Sole ProprietorYes
Enumeration DateMarch 24, 2020
Last NPPES UpdateJanuary 17, 20243 updates tracked since enumeration
NPPES CertifiedJanuary 17, 2024
✔ NPI 1629605258 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in OK · 7394
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
19600 E ROSS ST, Tahlequah, OK 74464
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gretchan B Lopez Do 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.

Medicare Billing Reassignment

Medicare enrollment records show Gretchan Lopez reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Cherokee Nation
0.1 mi
General Acute Care Hospital
19780 E. ROSS STREET
Tahlequah, OK 74464
  • Reassigned Medicare billing, Texas enrollment
  • 1,047 clinicians in this Medicare group
NPI 1275799645 (539) 355-1000

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 74464 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
$82.46 typical visit price
range $53.00 – $162.61
Typical copayment $20.61 (range $13.25 – $40.65)
Most-billed visit code 99203
Established Patient
$94.27 typical visit price
range $16.68 – $132.40
Typical copayment $23.56 (range $4.17 – $33.10)
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.

LINDSEY MICHELLE STROTHER PA
Physician Assistant
19600 E ROSS ST
TAHLEQUAH, OK 74464
Cherokee County (919) 434-8500
DR. SARAH ANNE PEARSON DO
Student in an Organized Health Care Education/Training Program
19600 E ROSS ST
TAHLEQUAH, OK 74464
Cherokee County (539) 302-4172
ANN NGUYEN D.P.M
Podiatrist
19600 E ROSS ST
TAHLEQUAH, OK 74464
Cherokee County (539) 234-1000
MIKAYLA JAMESON
Occupational Therapy Assistant
19600 E ROSS ST
TAHLEQUAH, OK 74464
Cherokee County (539) 234-1900
THOMAS CRAIG BEEN DDS
Dentist (General Practice)
19600 E ROSS ST
TAHLEQUAH, OK 74464
Cherokee County (539) 234-1000
KIMBERLY ANN WATSON NP-C
Nurse Practitioner
19600 E ROSS ST
TAHLEQUAH, OK 74464
Cherokee County (539) 234-1000
DESTINY SPRING DANIEL PHARM.D.
Pharmacist
19600 E ROSS ST
TAHLEQUAH, OK 74464
Cherokee County (539) 234-1000
BRITTANY N HUGGINS
Peer Specialist
19600 E ROSS ST
TAHLEQUAH, OK 74464
Cherokee County (539) 234-1000

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 Gretchan Lopez's NPI number?

The NPI number for Gretchan Lopez is 1629605258. It was assigned to this individual provider in the NPPES registry on March 24, 2020.

Where is Gretchan Lopez located?

Gretchan Lopez practices at 19600 E Ross St, Tahlequah, OK 74464. The listed phone number is (539) 234-1000.

What is Gretchan Lopez's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Gretchan Lopez enrolled in Medicare?

Yes. Gretchan Lopez is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gretchan Lopez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gretchan Lopez reassigns Medicare benefits to Cherokee Nation (Tahlequah, OK). The 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 Gretchan Lopez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gretchan Lopez was last updated on January 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.