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Dr. Mary M Nelson , DO

Pediatrics β€’ Altus, OK

Active NPI 1134665797 Individual Practitioner Female Practitioner
Practice location in NPPES

301 N 1st St Bldg 46
Altus, OK 735235004

Call 5804815623 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

301 N 1st St Bldg 46

Altus, OK 735235004

Telephone 5804815623
Fax 5804811321

Industry payments (Open Payments)

Fewer than 11 payment records totaling $13.26 in 2019

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2019.

Guide: How to read an Open Payments record

NPI first issued

2017

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Nelson has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Nelson as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Altus and Oklahoma

6 active clinicians are listed under Pediatrics with a practice address in Altus, OK (707 in Oklahoma).

Addresses are self-reported to NPPES and may be out of date.

Sources: CMS Open Payments (2019), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments Β· Program Year 2019

Program year 2019 (payments made January 1 – December 31, 2019): fewer than 11 records totaling $13.26.

Manufacturer Payment Nature Product Type Amount ($)
Ironshore Pharmaceuticals Inc.
Food and Beverage
In-kind items and services
Jornay PM 20mg capsules (Bottle of 100) General $13.26

Source: CMS Open Payments, program year 2019, released June 30, 2026.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-05-01
Pediatrics Primary Specialty

NUCC Taxonomy Code: 208000000X

License # reported to NPPES AL DO.2405

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Oklahoma State Board of Medical Licensure.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

ORDER AND REFERRING ONLY - PEDIATRIC MEDICINE

Medicare Enrollment ID

I20190213000150

Enrollment State Jurisdiction

MS

PECOS Control ID

1153669494

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

1 listed
NPI 1912468042

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

17 Historical Events
πŸ“
Updated Practice Location May 01, 2026

Registered at 301 N 1ST ST BLDG 46, ALTUS, OK 735235004 (Tel: 5804815623)

πŸ‘€
Provider Name / Credentials Updated May 01, 2026

Recorded as MARY NELSON, DO

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) October 22, 2025

Pediatrics (license number reported to NPPES: AL DO.2405)

πŸ“
Updated Business Mailing Address March 31, 2022

Registered at 301 N 1ST ST BLDG 46, ALTUS, OK 735235004 (Tel: 5804815623)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 31, 2022

Pediatrics (license number reported to NPPES: MS T-3634)

πŸ“
Updated Practice Location July 29, 2021

Registered at 301 N 1ST ST # 46, ALTUS, OK 735235004 (Tel: 5804817518)

πŸ“
Updated Business Mailing Address July 29, 2021

Registered at 201 N VETERANS DR APT 503, ALTUS, OK 735215410 (Tel: 2512135058)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 29, 2021

Pediatrics (license number reported to NPPES: AL DO.2405)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 17, 2019

Pediatrics (license number reported to NPPES: MS T-3634)

πŸ“
Updated Practice Location July 04, 2018

Registered at 2500 N STATE ST, JACKSON, MS 39216 (Tel: 6019841000)

πŸ“
Updated Practice Location March 30, 2018

Registered at 2500 N STATE ST, JACKSON, MS 392164500 (Tel: 6019841000)

βœ…
NPI Profile Active January 06, 2017

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) January 06, 2017

Registered at 1613 N MCKENZIE ST, FOLEY, AL 365352247 (Tel: 2512135058)

πŸ“
Business Mailing Address (Initial Record) January 06, 2017

Registered at PO BOX 107, ELBERTA, AL 365300107 (Tel: 2512135058)

πŸ‘€
Provider Name / Credentials (Initial Record) January 06, 2017

Recorded as MARY MARKS NELSON

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) January 06, 2017

Student in an Organized Health Care Education/Training Program

🟒
Initial NPI Registration & Enumeration January 06, 2017

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1134665797
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 06, 2017
Last Update: May 01, 2026
Sole Proprietor: No

Mailing Address

301 N 1st St Bldg 46

Altus, OK 735235004

Phone: 5804815623

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.