MICHAEL TIMOTHY NELSON M.D.
NPI 1437344181
Surgery in Tulsa, OK

Q: What is Michael Nelson's NPI number?

The NPI number for Michael Nelson is 1437344181. It was assigned to this individual provider in the NPPES registry on September 6, 2007.

Q: What is Michael Nelson's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Q: When was this NPI record last updated?

The NPPES record for Michael Nelson was last updated on March 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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.

Active since September 06, 2007PECOS EnrolledAccepts Medicare Assignment

4444 E 41ST ST, TULSA, OK 74135(918) 619-4400(918) 619-4960 Get Directions Write a Review

NPPES record last updated: March 26, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 26, 2025, Nov 19, 2024, Jan 21, 2021 (3 updates tracked since 2021).

On this page

About Michael Timothy Nelson M.d. NPPES

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

MICHAEL TIMOTHY NELSON M.D. (NPI 1437344181) is an individual surgery provider in Tulsa, Oklahoma, licensed in Oklahoma (37276) and active in the NPI registry since September 2007. He is enrolled in Medicare PECOS, is affiliated with Ascension St John Medical Center, and is a graduate of Other (1988).

NPPES Registry Identity

NPI1437344181

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameMICHAEL TIMOTHY NELSONCredential: M.D.

Location Address4444 E 41ST STTulsa, OK 74135-2527

Mailing AddressPo Box 268838Oklahoma City, OK 73126-8838 · (918) 634-7500 · Fax (918) 634-7560

Phone(918) 619-4400

Fax(918) 619-4960

Sole ProprietorNo

Medical School CMSOtherGraduated 1988

Enumeration DateSeptember 6, 2007

Last NPPES UpdateMarch 26, 20253 updates tracked since enumeration

NPPES CertifiedMarch 26, 2025

✔ NPI 1437344181 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

Licenses✔ Licensed in OK · 37276✔ Licensed in NM · 96-330

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

4444 E 41ST ST, Tulsa, OK 74135

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Other Identifiers 1

Medicaid200954370AOK

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Michael Timothy Nelson M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6406944990

PECOS Enrollment IDI20210204001689, I20230215000257

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 Reassignments

Medicare enrollment records show Michael Nelson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Board Of Regents Of The University Of Oklahoma Ou Physicians Tulsa

0.2 mi

Multi-Specialty

4502 E 41ST ST
Tulsa, OK 74135

Reassigned Medicare billing, Oklahoma enrollment
124 clinicians in this Medicare group

NPI 1154385730 (918) 660-3632

Creek Nation Hospital & Clinics

39 mi

Clinic/Center

2900 N MAIN ST
Muskogee, OK 74401

Reassigned Medicare billing, Texas enrollment
655 clinicians in this Medicare group

NPI 1922873611 (918) 346-7833

Unm Medical Group Inc

606 mi

Multi-Specialty

2211 LOMAS NE
Albuquerque, NM 87106

Reassigned Medicare billing, New Mexico enrollment
2,105 clinicians in this Medicare group

NPI 1831218627 (505) 272-3303

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

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

23 services23 patients

Insertion of abdominal cavity tube using an endoscope 49324

This procedure involves placing a tube into your abdominal cavity with the aid of an endoscope, a thin, flexible tube with a light and camera. It helps drain fluid or air, administer medication, or aid in diagnosis. It's done under sedation for comfort.

13 services13 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension St John Medical Center

Acute Care Hospitals · Tulsa, OK

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370114

Location1923 South Utica AvenueTulsa, OK 74104 · Tulsa County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 74135 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

$66.48 typical visit price

range $16.68 – $132.40

Typical copayment $16.62 (range $4.17 – $33.10)

Most-billed visit code 99213

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.

SUNIYE GHARAJEH MD

Student in an Organized Health Care Education/Training Program